Description: If you’re thinking Why AC Compressor Not Turning On it’s a seriously very frustrating moment. The AC compressor head of the AC system, don’t worry, here I will talk to you about some basic things. If you read and follow this, you can find out the exact pinpoint easily, so dive into the discussion. CAR and HOME air conditioning systems are almost the same, not too much different from home air conditioning and car air conditioning systems.
Common Reasons Your AC Compressor Is Not Turning On
First powering off, then touch the electrical system. First, we can understand the basic high-potential issue behind why ac compressor is not working step by step. AC compressor not switching on has many reasons behind that issue; I will provide the top-notch issues that mainly happen in the AC compressor worldwide. Most people have no idea how to handle this situation. Anyone can do this basic check, and after calling a professional, a basic check is necessary for all it’s save money and time.
1. Power Supply Issues
First things are to check the AC compressor receiving power, maybe the circuit is broken, the AC compressor fuse is blown, and an open circuit is often the main culprit, or the AC compressor clutch is not engaging due to cut resistance. AC compressors have standard resistance if they are open-circuited or cut; compressors may not engage even power supply is ok.
2. Faulty Thermostat
Sometimes the thermostat sensor is not sending the signal to the AC compressor, which is the reason the AC compressor is not kicking on. Sometimes lowering the temperature setting becomes on, so try once. Thermostat sensors watch the AC evaporator’s lowest cooling temperature. If the temperature of the AC cuts off and maintains the cooling, the compressor efficiency also increases.
3. Dirty or Clogged Air Filters
Sometimes AC filters are fully dusty, and air does not pass through them easily to the evaporator side, and after some time compressor shuts down due to safety reasons because of the heating issue in the compressor. The AC filter stops the dust before the cooling coil, because, except for the cabin filter, all dust hits the evaporator coil directly, and the evaporator becomes damaged in a few months. After the smells Musty odors came from the AC vent. Check also the blend door actuator setting. Also, learn the HVAC reset guide.
4. Capacitor or Contactor Failure
This is a very small electronic component and at a lower price (HOME), but if this is faulty or malfunctions compressor won’t be turned on, due to a lack of power.
5. Low Refrigerant Levels
If the AC system has low refrigerant, due to leakage, it should be checked. The main reason is that if the AC refrigerant quantity is low in the system, the air conditioner compressor not turning on, due to the pressure switch not sending the signal. Sometimes the Expansion valve also gets stuck by dust or clogged oil internally, at times the AC compressor gets hot and cuts off
6. Electrical malfunction (circuit board)
This is a very rare chance, if every component is ok except the circuit board, then we want to check, some dust is coming into the board after cleaning it’s working. So make sure it’s cleaned properly.
How to Troubleshoot When Your AC Compressor Doesn’t Start
Before calling the professional air conditioning technician, you must do the basic things. First powering off, then touch the electrical system. Main parts of an air conditioner you should know.
Step 1: Check the Power Source
Make sure the compressor power is on or not, check the fuse condition, etc.
Step 2: Inspect the Thermostat
Make sure the air conditioning setting value is correct, and replace the battery if needed. People are shaking and using don’t do this at all times, either inside the circuit board, which can be damaged. In a car AC thermostat sensor malfunctions AC does not switch on, or the AC is not cut off at all.
Step 3: Examine the Outdoor Unit (HOME)
Seen the grill side. Clear any debris around the condenser and listen for any humming or clicking sounds, or other types of sounds.
When to Call a Professional
If you have done these steps and the AC compressor is still not turning on, then you should call a licensed air conditioning technician. now want to check the electrical system and AC refrigerant leakage and make a Air-con cost breakdown, because except for tools and knowledge don’t do anything.
Preventive Tips to Keep Your Compressor Running
1) Schedule an annual AC check-up to see if any problems are coming up.
2) Replace the air filter during regular service.
3) keep the outdoor unit clean and a good place for fixing, and easy to work in if any kind of needed.
FAQ
Q)AC compressor not turning on sometimes?
