Top Reasons Your Air Conditioner is Running but Not Blowing Cold Air

Summer is right around the corner, and soon, you will need your AC every day to keep your home chilled and cozy. Let's say that one day, you switch on your AC, and it starts running, but there is no cold air, and you sweat and have no idea what to do.

This will not only be a very uncomfortable situation but might be a health risk for your pets and sick family members. When you notice something like this, you will have to get it fixed immediately by calling the AC Repair company. Do not wait for the heat to become unbearable and make you sick in the heat.

There are many reasons that can lead to an Air Conditioner not blowing cold air but running.
Some of these can be fixed easily at home, but some will require expert help.

So, let us take a look at why your AC is blowing cold air and how you can fix it.

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1. It has a dirty or clogged filter

One common issue with AC units is dirty or blocked filters. These filters work throughout the year to catch hair, lint, dust, and pollen. If they aren't changed regularly, they become clogged quickly.

When this occurs, the air can't flow properly into your home, causing your AC unit to shut off because it can't get enough air. This leads to the indoor temperature rising. If left unchecked, clogged filters can make parts wear out faster than normal and even damage the evaporator coil and condenser, creating bigger problems.

Besides regular cleaning, changing the filters every three months is essential. If you have indoor pets, you should change them more frequently.

Replacing indoor air filters should be easy. But if you're unsure which filter to use, contact a local HVAC company for air conditioning service in Sacramento.

2. The refrigerant in the AC pipes is low.

The chemical that makes your air conditioner work is called refrigerant, usually Puron or R410A.

The refrigerant might be the issue if your home's AC isn't blowing cold air. It could be running low and need more refrigerant added.

This usually happens because of a leak. A leak not only stops the AC from cooling your home properly, but it can also cause other problems. For instance, if it's not cool enough, the humidity in your home might go up, making it feel hotter inside.

If you think your refrigerant is leaking, contact an HVAC expert for AC repair in Sacramento immediately.

3. It has a faulty Thermostat.

The thermostat is the main part of your AC system. It decides when your AC turns on. But sometimes, your AC might not start because of improper thermostat settings. Ensure it's set to either "auto" or "cool." Sometimes, it might accidentally be set to "heat," which can cause the issue.

If the thermostat is set correctly and your AC still won't start, the problem might be with the thermostat itself. If your thermostat uses batteries, check if they need replacing. If that doesn't fix it, call an AC repair Sacramento company for help.

4. It has Frozen or Dirty Evaporator coils.

The filters we talked about earlier try their best to keep the coils clean and working really well. But, even with that, the coils can eventually wear out.

Because moisture is always present, especially in the indoor evaporator coil, problems like mildew or mold can start. (UV lights can help prevent this and keep your air cleaner.) Sometimes, if there's not enough refrigerant in the system, the coils can freeze up.

If the coils are faulty, your air conditioning unit can be seriously damaged. So, it's important to get it checked out by a professional AC repair in Sacramento as soon as possible.

Over time, the condenser can also start wearing out. If your air conditioner isn't blowing cold air and there's no other obvious reason, it's a good idea to get the condenser checked too.

5. It has Dirty and blocked registers.

Think of your home's ventilation system as pathways for cool air to flow. Just as a dirty air filter can make it hard for air to pass through, a blocked or clogged vent can do the same.

There are two main types of vents: return air vents, which suck air into the system, and supply vents, which blow conditioned air into your rooms. If either of these gets clogged, it can cause issues.

Your ventilation system runs all over your house. If something blocks or damages the ductwork (the pathways for air), it can mess with your cooling system. For example, if there's a hole in the ducts, cold air might escape into your attic. Even critters like mice or rats can damage the ducts, causing leaks.

If something is blocking the air near a vent, the room with that vent might feel warmer. This could indicate a problem with the ducts carrying cold air around your place.

Sometimes, vents can accidentally get closed. If one room feels warmer, ensure the vent is fully open.

Eventually, your HVAC unit might start needing more repairs, costing you more money. When this happens, it might be time to consider air conditioner in replacement Sacramento.

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Is your Air Conditioner Not Blowing Cold Air But Running? Call Heald Mechanical, Sacramento

Don't suffer through the summer heat when your AC isn't working. Let Heald Mechanical in Sacramento take care of it for you. Our HVAC Specialists will diagnose and fix the issue so you can enjoy cool comfort again. Don't delay—contact us today to schedule your AC repair and stay cool all summer long!