Top 6 reason why AC Compressor Not Turning On

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2 weeks ago

Description: If you’re thinking Why AC Compressor Not Turning On it’s seriously very frastrating 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, we can understand the basic high-potential issue behind why ac compressor not working step by step. AC compressor not switching on has so many reasons behind that issue, I will provide the top-notch issues are mainly happen in the AC compressor-related worldwide. Most people have not much 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 be circuit is broken, the ac compressor fuse is blown, and an open circuit is often the main culprit, either AC compressor clutch not engaging for 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 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 AC cuts off and maintains the cooling, also the compressor efficiency increases.

3. Dirty or Clogged Air Filters

Sometimes AC filters are fully dusty and air does not pass 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.

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 on internally, at times the AC compressor makes 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.

Step 1: Check the Power Source

Make sure the compressor power is coming 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, either 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 still 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, because except for tools and knowledge don’t do anything.

Preventive Tips to Keep Your Compressor Running

1) Schedule an annual 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) Why is my AC compressor not turning on in my car?

A) AC compressor not turning on in car, have a reason due to a blown fuse, refrigerant full leakage, a Magnetic clutch fault, pressure switch malfunction, or thermostat sensor damage. That is the main reason behind the car’s AC compressor not turning on.

Q)AC compressor not turning on sometimes?

A) Sometimes the AC compressor does not turn on main reason is AC compressor’s Magnetic clutch malfunctions after heat the engine, compressor clutch does not engage. Need to replace the Compressor clutch. Another reason is if the AC system inside the oil is totally black, this concern will come up. At that time need to clean the system and replace the compressor and expansion valve.

Q) AC compressor not turning on fan not running?

A) In that case AC refrigerant quantity is too low, needs to be recovered, and recharged the AC gas and checked the leakage. If any kind of “O” ring side leakage, replace it.