Quick Answer: What Do You Do When Your Air Conditioner Won’T Turn On?

What would cause an AC compressor to not turn on?

You will want to have the unit examined to look for signs of a blown fuse, a tripped circuit breaker, a broken thermostat, or dirty air filters.

Dirty or clogged filters commonly make AC compressors stop working..

Is there a fuse for the AC compressor?

The fuse box may contain fuses associated with your AC compressor. If a fuse is blown, you can easily replace it.

What happens when AC compressor stops working?

The first thing to do when an AC compressor stops working is to make sure if the unit is receiving power. There can be a fuse that has blown out or a circuit breaker that has tripped.

What would cause a thermostat to stop working?

Sometimes, faulty or aging wiring, dust accumulation, extreme temperature changes, and other issues can cause your thermostat to malfunction, rendering it unable to properly communicate with your heating equipment and interfering with its ability to regulate the temperature of your home.

What would cause an AC unit to not turn on?

If your AC unit won’t turn on, the first thing you should check is if there was a blown fuse or a tripped breaker. There’s a good chance that the problem is a tripped breaker if the circuit was overloaded. … However, it is also possible that a power surge caused your air conditioner to blow a fuse or trip a breaker.

Do AC units have a reset button?

Find the Reset Button – Many air conditioning units will have a reset button on them. The button is usually red in color and fairly small in size. It should be marked clearly as a reset button. You can consult the instructions manual to determine if your air conditioning unit has that button, and find its location.

How do I know if my thermostat is broken?

The most common signs of a broken thermostat are:Thermostat display is off or is non-responsive.Turning on the heat or AC does nothing.The heat or AC will come on, but either stays on nonstop or cuts out before the temperature setting is reached.

How long do air conditioner fuses last?

20 yearsThe lifespan of a fuse can be up to 20 years. AC fuses are usually what is known as ‘slo-blow’ or ‘time delay’ fuses. This means that they are at work every time you turn the machine on and off and eventually, will simply wear out due to the strain of the operation.

Why is my thermostat not working?

Here are four basic things to look at if your furnace isn’t responding to your thermostat settings: Check the power source. Your thermostat may just not be connected right or at all. A blown fuse, tripped circuit breaker or dead batteries will prevent the thermostat from turning on your furnace.

How do I reset my thermostat?

Here are the step-by-step reset instructions:Turn your thermostat off by switching it to the off position.Find the breaker that powers your HVAC system and turn it off.Wait 30 seconds and turn the breaker back on.Turn your thermostat back on.

How do you know AC compressor is not working?

System blows warm air If the condenser does appear to be running, but the system is blowing warm air, that’s also a symptom of AC compressor failure about to happen. A compressor in trouble is not able to pump refrigerant through the system, resulting in a lack of cooling power.

Can a blown fuse cause AC not to work?

First of all, your electrical system might be having problems. … While this prevents serious trouble such as electrical fires, it also means that a single blown fuse can cause the entire air conditioner to stop working. Some of the most common causes of AC failure are rooted in electronics.

How do I fix an unresponsive thermostat?

If the thermostat is still unresponsive, make sure the breaker is shut off and remove the cover. If it looks dirty inside, use canned air or a soft artist brush to clean away accumulated grime that may be affecting its functionality. Then look for issues like loose wiring or terminal screws and tighten them up.

How do I troubleshoot my AC compressor?

Simple Compressor Troubleshooting TipsTurn off the power – Shut off the power to your air conditioning unit before you start any work on it. … Look at the condenser fan – Check to see if the condenser fan starts and is working properly.More items…•

Who do you call to fix a thermostat?

Call Our Thermostat Experts Today at (800) 893-3523! The team of HVAC professionals at One Hour Heating & Air Conditioning provide efficient and reliable thermostat services. Whether you need assistance repairing or replacing your thermostat, our team is ready to help you.

What do I do if my air conditioner wont turn on?

What Should I Do if My Air Conditioner Won’t Turn On?Check your Thermostat. … Check Your Air Filter. … Look for a Blown Fuse/Tripped Circuit Breaker. … See if the Emergency Shut-Off Switch Is Tripped. … Check the Inside Unit’s Power Switch. … Make Sure the Drain Pan & Lines Aren’t Clogged. … Look for a RESET Button.More items…•

How do I reset my air conditioning unit?

Unplug your unit from the wall for at least 15 seconds and plug it back in. Next, hold the reset button down for three seconds and release. If the unit doesn’t kick on, repeat this step. If this still doesn’t work, locate your circuit breaker panel and try flipping the one connected to the AC unit.

How do I know if my AC fuse is blown?

Checking for Blown Fuses When a fuse blows from the air conditioner, it shuts down. A slight humming may come from the outside equipment, but it will do nothing else. Ensuring the problem is a blown fuse is most easily done with a voltmeter.