Why Is My AC not Blowing Cold Air? It Could Be One of These Reasons
The worst thing that can happen in the summer is an AC unit going out, especially during those hottest days. Instead of agonizing about it to your friends in a text like “AC not blowing cold air,” spend your time looking for the problem.
The good news is there are plenty of reasons it may be having trouble. Whether it’s an easy fix you can do yourself, or a more complicated issue that may take a professional, using this guide will help you figure it out.
Take a look at some of the reasons below to help you troubleshoot the problem.
AC Not Blowing Cold Air Because Air Filter Is Dirty
When the air filter becomes clogged, it can cause cold air to stop blowing. Even if it’s not dirty enough to physically stop the air from flowing, some units have a mechanism that can tell you need a new filter. They shut down the AC unit until you install a new filter to keep you and your household safe.
Failed to Perform Maintenance
Regular maintenance is important for any machine to continue working well, whether it’s related to temperature control in your house or not. Follow the recommended maintenance tips for your unit to make sure you keep it in top running order.
Problem with Fan Motor
One of the reasons your AC unit isn’t blowing cold air could be a problem with the fan motor inside the unit. The fan circulates the air through the coils, cooling the air, and pushes the air into the room. If the fan isn’t working right, it might not circulate the air through the coils to cool it.
It may also fail to push cool air into the room, if it’s circulating it through the coils like it’s supposed to. Check that both functions of the fan motor are working, before you check other possible reasons for no cold air.
Faulty Circuit Board
The PCB, or printed circuit board, on your temperature controls in the house, is usually green. It has several electrical circuits and solder connections that can short out or wear down and disconnect over time. It may be a simple re-soldering fix, or it could need to have a circuit repaired.
The repair may be quick like replacing a capacitor or something more dire that necessitates an entire board replacement. Once you get the PCB in working order you should be able to feel cold air coming from the vents again.
Unit’s Thermostat
It may take you a second to notice the AC is out because you’re keeping the temp high and trying to conserve energy. While you’ll go to the thermostat as soon as you realize there’s a problem, that may not be the issue. Your AC unit has its own internal thermostat separate from the one on the wall of your home.
It controls the temperature of the air before it leaves the machine. This can wear out over time, so you should have it inspected if you’ve checked the other possible issues and found them all in working order.
Air Conditioner Repairs
You may be tempted to email your AC unit’s manufacturer for help with the subject line “AC not blowing cold air” to get help. Yet consider some of the problems above first. Whether it’s a clogged filter or something more complicated like a faulty PCB, chances are you’ll find one of these reasons as the culprit for the failure.
If you can’t DIY the fix, contact us today for help getting your AC unit back up and running.