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If the AC compressor is not working but the fan is running, there could be several possible causes. Here are some steps you can take to troubleshoot and potentially fix the issue:

  1. Check the thermostat settings: Ensure that the thermostat is set to cool and that the temperature is set lower than the current room temperature. Sometimes, incorrect thermostat settings can prevent the compressor from turning on.

  2. Check the circuit breaker: Locate the circuit breaker panel and check if the breaker for the AC unit has tripped. If it has, switch it off and then back on. A tripped breaker can cause the compressor to stop working while the fan continues to run.

  3. Inspect the air filter: A clogged or dirty air filter can restrict airflow and cause the AC system to shut down the compressor. Remove the air filter and check if it is dirty. If it is, clean or replace it with a new one as per the manufacturer's instructions.

  4. Check for refrigerant leaks: Low refrigerant levels can cause the compressor to stop working. Look for any signs of refrigerant leaks, such as hissing sounds, oil spots, or icy coils. If you suspect a refrigerant leak, it's best to contact a professional HVAC technician to diagnose and repair it.

  5. Reset the compressor: Locate the outdoor unit of the AC system, which houses the compressor. Switch off the power to the unit, usually by turning off the breaker that supplies electricity to it. Wait for a few minutes and then turn the power back on. This reset may help the compressor restart if it was temporarily overwhelmed or experiencing a minor fault.

  6. Call a professional technician: If the above steps don't resolve the issue, it's recommended to contact a qualified HVAC technician. They have the expertise and equipment to diagnose the problem accurately and safely repair the AC system.

Remember, working with electrical components and AC systems can be dangerous if you're not experienced or trained. If you're unsure or uncomfortable performing any of the steps, it's always best to seek professional assistance to avoid further damage or injury.

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