Is Your AC’s Circuit Board Failing? These 4 Clues Say Yes

Is your air conditioner acting strangely, and you just can’t figure out why? The issue might not be with the thermostat or the compressor; it could be your AC’s circuit board.

The circuit board is like the brain of your air conditioner. It tells all the parts when to turn on, how long to run, and when to shut off. When it fails, your entire system can start acting up in confusing ways. Here are four major clues that your AC’s circuit board may be the problem.

1. Your AC Won’t Turn On Or Off

Have you ever set your thermostat to cool, but your AC doesn’t start up? Or maybe it runs and runs and won’t shut off? A faulty circuit board could be the reason. 

If the board can’t send or receive the right signals, the AC won’t know when to start or stop. That means uncomfortable temperatures and possibly higher energy bills.

2. Inconsistent Or Unstable Operation

Does your AC cycle on and off quickly, or seem to struggle keeping the temperature steady? That’s not normal behavior. A healthy AC should cool evenly and cycle properly. 

If your system runs erratically, the circuit board could be sending mixed signals to your components. Left unchecked, this can cause unnecessary wear and tear on your unit.

3. Thermostat Isn’t Responding

What happens when you adjust your thermostat and nothing changes? Or the temperature reading seems way off from how your home actually feels? 

That might not be your thermostat’s fault. It could be that the circuit board is failing to communicate with it. When the board and thermostat are out of sync, your comfort is the first thing to suffer.

4. Burning Smells Or Weird Noises

Smell something like burning plastic or electronics? Hear buzzing or clicking from your AC unit? These are serious warning signs. 

A burning smell could indicate overheating or electrical damage, while strange sounds might point to a short circuit or failing components on the board.

What Should You Do?

If you notice any of these clues, don’t wait for your AC to fully break down. Circuit board issues can worsen quickly and lead to bigger, costlier repairs. Sometimes it’s as simple as a loose wire or moisture buildup; other times the board needs replacing.

Call ProSkill Services today to have one of our HVAC pros inspect your system. We’ll get to the root of the issue and make sure your AC is back to running safely, smoothly, and efficiently.