Five Common Signs Of A Mold Problem In Your Home (And More)

Does Your Home Have A Mold Problem? Here’s What You Want To Look For

Five Common Signs Of A Mold Problem In Your Home (And More)Sure, everyone knows the clear signs of a severe mold problem at home: Big, ugly splotches, usually dark green or black, on a wall. Maybe it’s in the basement, or even upstairs if you’ve dealt with a leak.

But, that’s not the first sign of an issue. Far from it.

Mold tends to grow in out-of-the-way places, especially where there’s no light. So, you’re probably not going to notice a colony of spores right away when it’s growing behind the drywall or in a storage box.

In fact, by the time you do notice those significant visual signs, the problem’s already out of hand.

Instead, you need to keep an eye (and your other senses) out for those smaller and sometimes subtle clues that mold is growing in your home.

It can happen in any house, but homes that use mini split heating and cooling are even more at risk than others.

We’ll talk more about that a little later in this article. But first, we’re going through the common signs of mold in your home and some of the physical symptoms and health problems you can experience.

If you catch the problem fast enough, it’s possible to get rid of it on your own. And, with some extra care in the future, you’ll prevent it from coming back.

Five Telltale Signs Of A Mold Problem At Home

By the time you see mold growing on a wall or on furniture in your home,it’s already become widespread. Instead, look for these other telltale signs to catch a mold problem early on:

  1. Stale, Rotten Smell
  2. HVAC Smells
  3. Spots On Clothing
  4. Warped Walls
  5. Black Spots

Related: What Is The Best Temperature To Prevent Mold From Growing At Home?

Stale, Rotten Smell

Why Does My Mini-Split Smell Like Cheese Or Dirty Socks?You can’t see mold growing behind your walls or inside your HVAC system, but you’ll be able to smell it. Spores in the air will have a stale, rotten smell to them.

HVAC Smells

When it comes to heating and cooling, the odor caused by a mold colony has a specific name: Dirty Sock Syndrome.

That refers to the stale, cheesy smell you notice when your system circulates mold spores through the house. Check to see if the odor is more pungent around vents or near the air handlers of a ductless system.

Read More: Why Does My Mini Split Smell Like Cheese Or Dirty Socks?

Spots On Clothing

Mold can also grow on clothes, and you can spot it by watching for white or brown splotches on fabric that are squishy or fuzzy. It’s especially a problem if your clothes are still damp once they’re done in the dryer. Or if they’re tucked away in a box or drawer for a long time in a humid environment.

Warped Walls

Drywall is almost always used for interior walls in homes, and they’re porous. As a result, mold growing inside the wall will warp both sides of the drywall. So, even if the infestation is growing where you can’t see it, you’ll notice bulging and disfiguration on the side of the wall you can see.

Similarly, you may also notice bubbling and warping wallpaper.

Related: How Long Does Mold Remediation Take?

Black Spots

Once you start noticing black spots on a wall, particularly near the ceiling or in a corner, you know you’ve got a mold problem quickly getting out of hand.

It’s easiest to spot on finished walls because it stands out against the paint. But, spots on the walls or floor of a dark, unfinished basement can blend in more easily with stonework and mortar.

Four Physical Symptoms Of Mold Exposure At Home

Exposure to excess mold in your home will start to cause health problems including:

  1. Allergy Symptoms
  2. Trouble Breathing
  3. Rashes And Blemishes
  4. Sinus Headaches

Allergy Symptoms

Mold Can Cause Breathing Problems And IrritationsPeople with a mold allergy will respond to spores the same way people with seasonal allergies respond to pollen: Their immune system overreacts, and they experience runny noses, itchy eyes, a cough, and throat irritation.

Trouble Breathing

Breathing in a foreign and potentially toxic substance like mold spores can make you nauseous and trigger asthma attacks. Anyone with a respiratory problem such as COPD is also more vulnerable to difficulty breathing due to mold exposure.

Rashes And Blemishes

A rash from mold looks like any other rash triggered by an allergic reaction. So, you’ll want to look for some of the other signs we discussed. But, the brown or pink blemishes are often itchy with small raised bumps. And, they can make your skin dry, scaly, and sensitive to the touch.

Sinus Headaches

Headaches and sinus problems are common with mold exposure or being allergic to it. The problem is twofold: Inflammation from the allergic reaction, plus irritation of your respiratory system both contribute to sinusitis and related problems.

Related: Can Mold Cause Vertigo?

How Long Do Mold Spores Live?

Mold spores live for centuries as long as there’s organic matter for food plus a suitable place to cultivate. Mold spores on clothes usually live for a day or two. But, they’ll keep multiplying and form a colony that keeps growing if the conditions are right in your home.

Mold Spores And Ductless Mini Splits

Over the last ten years, we’ve discovered that ductless mini splits — particularly the air handlers — are prime breeding grounds for mold. These units trap bacteria and other organic matter, which serves as food.

Plus, they’re dark, warm, and damp — the perfect environment for a colony to thrive.

And, to make things worse, those spores spread through the air you breathe every time the system starts blowing warmed or cooled air back into the room.

Related: How Often Should A Mini Split Be Cleaned?

For example, here’s a photo of an air handler we started cleaning. You can see the side of the coil we’ve treated versus the side we didn’t get to yet:

You Can See How Dirty A Mini Split System Can Get

If you’ve had your mini split for more than a year, you should consider a deep cleaning. That’s especially so if you’re also noticing signs and symptoms of mold exposure in your Treasure Valley Home. If you want to schedule a cleaning, or just ask some questions to learn more about it, call HydroKleen208 at (208) 779-5596. We service the Boise Metro area along with Kuna, Cascade, and McCall, ID up in Valley County. 


How To Heal Your Body From Mold Toxicity Or Mold Exposure

How To Heal Your Body From Mold Toxicity Or Mold Exposure

How To Heal Your Body From Mold Toxicity Or Mold ExposureThe effects of mold exposure or mold toxicity range from mild physical ailments to possibly even serious neurological issues. So, as you take steps to remove mold from your home, it’s also important to focus on healing the damage your body has taken as a result of exposure.

In this article, we’ll clear the air about the different types of health issues that stem from mold in your home. Then, we’ll look at recovering your health and how to prevent it from happening again.

Related: X early warning signs of mold toxicity

Now, you may be wondering why an HVAC cleaning service is writing about a health-related topic. The reason is simple: It turns out that mini split systems are excellent breeding grounds for mold and other biotoxins.

We find anything from traces of mold to full-blown infestations in the ductless air handlers we service. Those mold spores circulate through your home and affect your health.

We’ll get into that later in the article. For now, you can call us at (208) 779-5596 with any questions about the mini split in your Boise Metro or Treasure Valley home.

Mold And Your Health: Four Terms To Know

There’s a lot of confusion — and some controversy — about the effects mold can have on your health. So, we want to start by distinguishing four terms when it comes to hold and your body. Each of these are a different topic:
  1. Mold Exposure
  2. Mold Allergy
  3. Mold Infection
  4. Mold Toxicity

Mold Exposure

Mold exposure is simply being around mold spores, usually in dark or damp places. If you’re allergic to mold, you’ll notice symptoms. Exposure itself isn’t necessarily harmful — after all, mold isn’t always necessarily toxic. But, being around it too long and breathing it in all the time can lead to health problems

Related: Indoor AIr Toxins (And Their Symptoms) In Boise Metro And Valley County Homes

Mold Allergy

A mold allergy is when your immune system overreacts to the presence of mold spores in your body. Symptoms include itching and skin irritations, runny nose, coughing, and watery eyes. It can also cause restricted breathing and trigger asthma attacks.

Related: Excellent Indoor Air Quality At Home Is Crucial For People With Asthma

Mold Infection

Mold infection is caused by exposure to Aspergillus, a specific type of mold that harms people with weakened immune systems. Along with allergy symptoms, people with other medical conditions experience coughing, coughing up blood, fever, chest pains, and shortness of breath. 

Mold Toxicity

Mold toxicity is a variety of physical and neurological symptoms from prolonged exposure to mold spores. Along with allergy-like symptoms, people report vertigo, tinnitus, digestive issues, fatigue, memory issues, and disorientation. 

Mold toxicity is a controversial diagnosis. Parts of the medical community say it’s allergies or the more generalized “Sick Building Syndrome.”

Recovering From Mold-Related Illness

Most symptoms and illnesses are treatable with simple remedies and easy-to-follow practices. Of course, we can’t diagnose you or promise these will work. But, here’s an idea of what it takes to recover from mold-related illnesses:

  1. Consult Your Doctor
  2. Remove Mold From Your Home
  3. Over-The-Counter Medications
  4. Eat A Healthy Diet

Consult Your Doctor

Your first step toward treating any mold-related illness is to consult your doctor. They often start with antihistamines, decongestants, medications to combat inflammation and sinus problems, or inhalers to address breathing issues.

Over-The-Counter Medications

You can combat allergy-like symptoms the same as you would seasonal allergies with over-the-counter antihistamines, decongestants, and skin treatments for rashes.

Eat A Healthy Diet

Eating well helps your body’s immune system fight off infections. Avoid processed food or items with a lot of sugar. Focus on non-sugary foods, focus on non-starchy vegetables and low-sugar fruit. 

Stay away from foods that often contain fungi or mold; These include mushrooms, cheese, meat or fish, soy sauce, vinegar, salad dressing, or ketchup. And avoid leftovers left around for more than a day.

Remove Mold From Your Home

One of the most important ways to avoid a relapse or new infection is getting rid of mold in your home. This often involves mold remediation from a certified, professional mold removal company.

Related: How Long Does Mold Remediation Take?

Preventing Mold Buildup In Your Home

The best way to avoid mold-related illnesses is to prevent mold buildup in your home. You can do that by:

  • Controlling Humidity
  • Using Exhaust Fans
  • Replacing Soaked Upholstery Or Carpets
  • Keeping Your HVAC System Clean

Control Humidity

Keep your home’s relative humidity between 30 and 60 percent. This is most challenging in the summer. Your mini split or central air acts as a dehumidifier, and you can add room dehumidifiers or whole-home units.

Use Exhaust Fans

Along with getting rid of bathroom and cooking smells, exhaust fans in the bathroom and kitchen remove excess moisture in the form of steam from showers and cooking.

Replace Soaked Upholstery Or Carpets

Don’t just dry out carpets or upholstery that becomes soaked. Even if it doesn’t feel wet, that dampness is enough for mold spores to take hold. Get rid of these items altogether.

Keep Your HVAC System Clean

Mold cultivates incredibly well in the air handlers for ductless mini splits. The insides are the perfect combination of dark, warm from hot air passing through, and damp from water condensing during the cooling process.

It’s common to open a unit and find microbial buildup on the coil that’s this severe:

A Ductless System Can Get Moldy If Not Taken Care Of

A professional deep cleaning flushes out these toxins. It’s essential to get this done because mold spores and other contaminants spread through the air you breathe when the system is running. 

Related: How Often Should A Mini Split Be Cleaned? 

Mini Split Cleaning In Donnelley, ID

HydroKleen208 guarantees the most effective mini split cleaning for your home or business in Donnelly, ID or anywhere in Valley County or Boise Metro. Our process and non-toxic cleaning agents flush out all mold spores and other contaminants from your ductless system. To learn more or schedule a cleaning, call us at (208) 779-5596.

Common Mini Split Smells: What They Mean And How To Fix Them

Why Does My Mini Split Smell Funny? Common Causes And Fixes

Common Mini Split Smells: What They Mean And How To Fix ThemYour nose knows! A funky smell coming from your mini split is a sign of a problem. Depending on the odor, it could be anything from an electrical issue to mold infestation to a problem outside your home.

No matter the cause (or the stench), it’s always important to investigate it right away. Even though the problem could be small and easy to fix, it won’t remain that way.

Minor issues get more severe over time. If you ignore it for too long, you’ll end up paying a lot more for a more extensive repair.

Even worse, you’ll compromise the indoor air quality in your home: The air you breathe will be less healthy and can make you sick.

But the good news is that it’s a simple fix most times. And, with mini splits, in particular, a good deep-cleaning clears up most issues with one last visit.

We’ll walk you through troubleshooting based on what you’re experiencing. If you think you need a cleaning or have more questions about the system in your Kuna, ID home — or any house or business in the Treasure Valley — call HydroKleen208 at (208) 779-5596.

We’ll answer all your questions and help you decide if it’s time for a cleaning.

Four Common Mini Splits Smells And What Do Do About Them

These are the four most common odors people notice coming from their mini split:

  1. Chemicals Or Vinegar
  2. Seafood Or Fish
  3. Sewage Or Rotten Eggs
  4. Stale Or Cheesy

We’ll explain what each means and what you should do about them.

Mini Split Smells Like Chemicals Or Vinegar

Electrical problems inside an air handler cause a smell people describe as “chemical” or sometimes like white vinegar. The strong, sharp odor usually means something’s overheating or burning inside the unit.

You can investigate this by looking for brown droplets after taking off the cover and filter. They may look like animal droppings, but what you’re seeing is the sign of something melting and dripping off deeper inside the unit.

Related: 5 Reasons You’ll Love A Mini Split Cleaning

Turn off that air handler if you notice this, and check the others as well. And call your HVAC company right away. It’s nothing you can fix yourself, and you risk major damage if you leave it unattended.

Mini Split Smells Like Seafood Or Fish

Animal remains near your heat pump or air handlers result in your mini split producing a smell similar to seafood or fish. The scent comes from bacteria and other contaminants from the decomposing body.

Start by checking outside near the heat pump. Next, sniff near the walls around your air handler for any natural decaying smells.

It’s worth clarifying a difference here between ductless systems and conventional central air: A fish smell in traditional forced-air systems is usually the sign of an electrical problem, while a rotten egg smell often means a dead animal.

But, as you’ve seen already, these odors mean different problems for mini splits.

Mini Split Smells Like Sewage

A sewage smell coming from your mini split indicates a wastewater problem somewhere in or around your home. There’s a broken sewage pipe, and your HVAC system is circulating the odor.

Once again, turn off the system and check around the house for more odors. Sniff around outside, too.

And, if you feel weak, dizzy, or nauseous, open all the windows and call your HVAC contractor or plumber immediately. A sewage problem can also result in methane gas exposure.

Mini Split Smells Stale Or Cheesy

A stale or cheesy mini split smell is a sign of a mold problem. It’s called Dirty Sock Syndrome because people often describe it as smelling like an old gym bag. The cause is mold and mildew building up inside the air handler, usually on the coil.

It’s pretty common: Your air handler is warm from all the electronics at work, and there’s no light in there. When you combine that with the moisture from the air condensing inside it, you end up with a perfect breeding ground for mold.

The best way to get rid of the problem is with a deep cleaning, and we’ll discuss that in more detail later.

Regular Maintenance For Mini Splits Prevents Odors

You can head off most mini split odors with some easy preventative maintenance:

  • Cleaning The Air Filter
  • Annual Tune-Ups
  • Deep Cleaning

Related: How Often Should A Mini Split Be Cleaned?

Clean The Air Filter

Take the reusable air filters out of your air handlers once a month and clean them out. This gets rid of all sorts of dust, dirt, and debris. And it improves airflow, which in turn prevents other buildup inside the system.

Related: Six Telltale Signs Your Mini Split Needs Cleaning

Annual Tune Ups

Call an HVAC company in the spring for a tune-up. That’s when they inspect and clean out your system. You’ll need one in the fall, too, if your mini split heats your home as well. A quick visit heads off all sorts of problems.

Deep Cleaning

Regular Service Is The Best Way To Avoid Repairs

A deep cleaning goes much further than a tune-up when it comes to cleaning your system. A regular HVAC contractor may clear some surface dirt but can’t get too far into the units.

Instead, HydroKleen208 uses specialized tools and non-toxic, environmentally-safe cleaners to flush out your entire system without taking it apart.

It’s the best way to be sure your air isn’t filled with mold spores, allergens, and other microbial contaminants circulating from your mini split.

Related: What Does It Cost To Clean A Heat Pump?

Mini Split Cleaning In Kuna, ID

HydroKleen208 is the worldwide industry leader for mini split cleaning in Kuna, ID and across the Treasure Valley. We bring more than ten years of dedicated research and development to every visit. Call us at (208) 779-5596 or click below to set your appointment.

Common Asthma Triggers (And How To Avoid Them)

How To Make Your Home Safe From Mother Nature’s Common Asthma Triggers

Common Asthma Triggers From Mother Nature (And How To Avoid Them)Let’s face it: Mother Nature is no friend to people with asthma. Sure, manufactured chemicals and toxins may trigger attacks. But there are plenty of hazards in the natural world that do the same.

And, some of them may surprise you. For instance, did you know that a thunderstorm can cause asthma attacks for thousands of people at once? 

Or, how wildfires on the west coast and here in Idaho affect people with asthma?

This article discusses common (and surprising) asthma triggers out there thanks to Mother Nature. We’ll also discuss preventing attacks and steps you can take to remove many natural triggers from your home. 

Improving indoor air quality is an essential part of what we do here at HydroKleen208. If you’re concerned about the air quality in your home near Cascade, ID or Boise Metro, give us a call at (208) 779-5596.

Related: Excellent Indoor Air Quality Is Crucial For People With Asthma


Wildfires are unhealthy for everyone. Even if you’re hundreds of miles away, the smoke and ash can irritate your nose, throat, eyes, and lungs. People with asthma, COPD, or other respiratory issues get it even worse. 

In particular, the smoke and ash irritate and inflames your lungs. These conditions make it much harder to breathe, which triggers asthma attacks. What’s worse is that the smoke lingers for days or weeks. That means prolonged exposure. 

Here in Idaho, wildfires are a big problem, especially in the summer. Not only do we deal with wildfires in our state. We also get pollution from fires in nearby Washington, Oregon, and California.

How To Prevent

For starters, stock up on air filters for your heating and cooling system early in the year. Even a basic filter helps screen out smoke and ash in your house. But if there’s a shortage by spring, you’re stuck when wildfire season hits. 

You can keep track of wildfires in Boise Metro or Valley County by following the news or checking Idaho’s wildfire site. And in general, you can check your air quality by zip code any time using this site.

If you have a mini split system, you wash and reuse your filter. In that case, clean it more often when there’s wildfire smoke nearby. And, we’ll talk more about mini split cleaning later on. 

Next, keep some particulate respirator masks on hand. Those would be N95 or P100 masks. Cloth masks don’t work nearly as well. 

Epidemic Thunderstorm Asthma

Believe it or not, a severe thunderstorm can trigger asthma attacks. Technically it’s not the storm itself. The culprit is usually pollen

Heavy rain and sudden changes to temperature or humidity cause pollen grains to open and release high amounts of pollen at once. Then, high winds spread the pollen, and fungal spores, quickly. 

Thunderstorm asthma isn’t the most common problem for people with asthma. It doesn’t occur with every storm, nor does it always happen on a day when the pollen count is high. 

However, epidemic thunderstorm asthma made headlines a few years ago in Australia, which is home to our parent company, HydroKleen Global. Ten people died as a result, and the event sent thousands of people to the emergency room

How To Prevent It

Since thunderstorm asthma isn’t common, you don’t need to worry every time the weather calls for showers. But, if there’s a heavy storm on the way in spring and summer, or when there’s a high pollen count, take some extra precaution. 

Treat the event like any day with a high pollen count

Make sure you have your inhaler

  • Use preventer medication if you have it
  • Try not to go outside and keep your windows closed
  • Remove your shoes when you get home
  • Make sure the air filters in your HVAC system are clean

Related: Breathe Smarter Thanks To New Asthma Treatment Technology

Pollen And Other Allergens

Most people think about pollen as a problem for people with allergies. But, asthma and seasonal allergies are a common combination. Airborne allergens trigger asthma attacks, too.

When you have a pollen allergy, your body reacts to this harmless substance as if it’s an invader like a virus or something else that can make you sick.

Your immune system pumps out chemicals to fight the invasion. That results in itchy eyes, runny noses, and congestion.

The problem is that reaction also affects the lungs and airways, triggering an asthma attack.

How To Prevent It

We already mentioned some strategies for high pollen count days. There are also some basic precautions:

Check the pollen account and air quality forecasts every day. Pay close attention in the spring and summer.

Use a particle mask when gardening. You’re likely to encounter pollen near plants, so take extra care.

Have your rescue medication ready. Make sure your inhaler or albuterol is nearby on high pollen count days. If you’re having severe reactions, your doctor can recommend stronger treatments

Stick to a regular cleaning regimen at home. Wash your sheets weekly, vacuum rugs, and wipe surfaces with a damp cloth.

Mold, Mildew, Fungus, And Bacteria

Mold, mildew, fungus, and bacteria all irritate your lungs and airways. They cause inflammation the same way pollen does. Too much exposure makes anyone feel sick, plus it’s an asthma trigger.

Related: Symptoms And Warning Signs Mold Toxicity Or Poisoning

How To Prevent It

Once again, a regular cleaning regimen helps keep many of these natural irritants at bay. In particular, you also want to eliminate conditions in your home that make it easy for mold and fungus to thrive.

That means looking for — and clearing out — any space that’s warm, moist, and dark.

Check the corners of your basement and behind your washing machine, dryer, and refrigerator. And, if you have a mini split, we have more information for you.

Mini Split Cleaning Remove Asthma Triggers In Homes With Ductless HVAC

The insides of mini split air handlers are excellent breeding grounds for mold, mildew, and other microbial contaminants. And, it’s a bigger problem than many people here in the U.S. realize yet.

The insides of these units are warm, moist, and dark. They’re also nearly impossible to clean.

When you clean the filter, as you should, you’re only addressing that component. Even professional maintenance only scratches the surface.

It would take your HVAC tech hours to disassemble the entire unit to reach everywhere. And to clean the grooves between every fin on the coil — that’s where we find large buildups of mold, mildew, fungus, and more.

Here’s a typical photo of an air handler we cleaned. Partway through, we took a picture showing how dirty it gets — and how much of a difference a deep clean makes.

You Can See How Dirty A Mini Split System Can Get

We’re able to do this thanks to our customized equipment and cleaning agents. Our sprayers can reach in and around every part of the air handler. So, we can clean the entire thing (plus your heat pump outside) without taking it apart.

Related: How Often Should A Mini Split Be Cleaned?

Meanwhile, our cleaning agents eradicate microbial contaminants. But, they’re 100-percent non-toxic and safe for the environment.

So, we’re not pumping your home full of chemicals that will make you sick. And, you don’t need to worry about your town’s water when we flush everything out.

Related: HydroKleen’s Process And Cleaning Agents Are Non-Toxic And 100-Percent Environmentally-Safe

We mentioned our parent company, HydroKleen Global, earlier. They’ve spent more than a decade in research and development. Now, HydroKleen208 brings that expertise to Valley County and Boise Metro.

Mini Split And Heat Pump Cleaning In And Around Cascade, ID

HydroKleen208 provides the world’s most effective mini split and heat pump cleaning for homes and businesses in Cascade, ID and anywhere in the Treasure Valley. If you’re not satisfied, it’s free. Click below for an appointment or call (208) 779-5596 to learn more.

Guide: Why Is My Mini-Split Not Heating or Blowing Hot Air?

Why Is My Mini Split Not Heating My Home Or Not Blowing Hot Air?

Guide: Why Is My Mini-Split Not Heating or Blowing Hot Air?There are many possible reasons why your mini split isn’t blowing hot air or warming your home. Most of them boil down to buildup inside the air handlers that prevent airflow or heat transfer. Now, there’s an easy fix for that.

This article walks you through the four most common reasons a mini spit won’t work correctly. You can handle a few of these on your own. For others, you’ll need a professional.

But, the good news is that in many cases, that professional isn’t an HVAC contractor. Instead, you can schedule a mini split cleaning that usually solves the problem — and offers a few other benefits as well.

Of course, we need to warn you not to start taking apart your air handler or heat pump. These units have some tiny, delicate parts in there. It’s easier than you may think to make the problem much worse.

Related: Mini Split Improper Installation: What Could Go Wrong?

Instead, run through our quick DIY troubleshooting. Then, give HydroKleen208 a call if you’re in Valley County or Boise Metro here in Idaho. We’ll answer your questions over the phone and help you decide if cleaning is the right move. You can reach us at (208) 779-5596.

Four Common Reasons Your Mini Split Is Not Blowing Hot Air

The four common things to check for when your mini split is not heating your home or blowing any hot air are:

  1. Wrong Thermostat Settings
  2. Dirty Or Clogged Filter
  3. Frozen Coil
  4. Clogged Coil

You can fix the first two yourself, and we’ll go through all four in-depth.

Wrong Thermostat Settings

Sometimes, the problem is simply the thermostat setting on your air handler.

For instance, if you don’t switch from “Cool” to “Heat,” your heat pump waits for the house to get warmer than the setting. In the winter, you want the opposite: Heat coming on when it goes below that call.

Or, there’s “Fan Only,” which only circulates air without moving heat around. This is more common on forced-air systems, but it’s an option here as well. In the winter, it would only move around the air in the room — which is cold when there’s no heat.

Read More: My Mini Split Won’t Turn On: Four Common Causes (And How To Fix Them)

What To Do

Check the thermostat on each air handler. Make sure they’re set to “Heat” and not “Fan Only.” Then, set them to the temperature you want.

Dirty Or Clogged Filter

The filter in your mini split traps all sorts of dust and debris. When that stuff floats through the air and into the air handler, the filter prevents it from going further into the unit and then blowing back out.

But that filter gets clogged eventually. When that happens, it blocks airflow. Now, your air handler is trying to move heat into the room. But, there’s no circulation, so you don’t get any hot air.

Related: How To Spot And Fix A Condensate Drain Line Clog

What To Do

Open the panel on your air handler and check the filter. Does it look like this?
A Dirty Ductless Filter

If so, clean it right away. Then, see if that solves the problem. If it does, make sure to clean it once a month from now on — that’s the usual manufacturer recommendation.

Frozen Coil

A mini split heat pump can “ice up” or “ice over.” It’s when water on the coil freezes. Then, it can’t draw in heat and circulate it inside your home. The result is a system running in the winter but delivering cold air instead of warmth.

The two main culprits here are a dirty coil or a refrigerant leak. We’ll talk about the coil in our next section.

A refrigerant leak produces freezing-cold air in the heat pump and on the coil. It’s so cold that all the moisture on it or in the air freezes up. It ices over and prevents heat transfer.







What To Do

Listen for hissing sounds or chemical smells near the heat pump. Those are signs of a refrigerant leak. IF you notice them, call your HVAC contractor right away.

If not, disconnect the power to your heat pump. Once the ice melts, power it back on. If it happens again, call a professional.
Meanwhile, visually inspect the coil if you can see it. Take off the filter in your air handler as well. If they are visibly dirty, you need a cleaning. That may solve the problem.

Clogged Coil

A clogged coil causes heating problems even if you don’t notice ice on the system. In fact, the ice problem is rare. A far more common symptom is air handlers not working as well as they used to is a far more common symptom.

Once again, the problem is a clogged coil: All sorts of gunk, from dust to even mold, builds up in between the tiny fins and prevents proper heat transfer and circulation.

It happens on the heat pump outside and inside your air handlers. And, it results in hot and cold spots in the house or getting cold air when you want heat.

What To Do

Start with a deep cleaning. It’s a more detailed, involved process than what you’d get with routine maintenance from your regular HVAC provider. And that’s no slight on them. It’s just that this is a specialized process.

What you want is a service that gets behind and inside every component of your air handler and mini split to flush out contaminants and eradicate any microbial organic pollutants.

Related: How Often Should A Mini Split Be Cleaned?

What Do You Get With A Mini Split Cleaning?

HydroKleen208 uses equipment and cleaning agents designed to quickly and completely flush and sanitize your entire mini split system. You’d be amazed (and probably grossed-out) by what lurks inside your air handlers and heat pump.

Here’s an example from a recent job. As always, we pause halfway through to show the homeowner the difference we’ve made. So far, we’ve cleaned the left side. Check out the horror show on the right:

And, we’re sorry to say, this isn’t an unusual case. If you’ve never had your system cleaned out before, your units probably look like this as well.

Fortunately, we can make a huge difference with one quick visit.

Related: What To Expect With A HydroKleen Visit

Mini Split Cleaning In Donnelly, ID

HydroKleen208 specializes in mini split deep cleaning for homes and businesses in Donnelly, ID, Valley County, and Boise Metro. We guarantee our tools and cleaning agents will get your mini split working like new. If they don’t, our visit is free. Click below or call us at (208) 779-5596.