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Why is my Air conditioner on but not blowing?

Here are several possible reasons why an air conditioner may be on but not blowing air:

1. Clogged air filter: A dirty or clogged air filter can restrict airflow, reducing the amount of cool air that is circulated throughout the room. Check the air filter and replace it if necessary.

2. Closed or blocked vents: Make sure that all the vents in the room are open and unobstructed. If any vents are closed or blocked, it will restrict the airflow and prevent the air conditioner from effectively cooling the room.

3. Low refrigerant level: Refrigerant is the chemical that absorbs and releases heat in the air conditioning process. If the refrigerant level is low, the air conditioner will not be able to cool the air properly. A qualified HVAC technician should be consulted to check and, if necessary, recharge the refrigerant.

4. Frozen evaporator coil: The evaporator coil is the part of the air conditioner that absorbs heat from the air. If the evaporator coil becomes frozen, it can block the airflow and prevent the cool air from being circulated. Frozen evaporator coils can occur due to various reasons, such as a low refrigerant level, dirty air filter, or blocked air vents.

5. Malfunctioning fan or blower: The fan or blower is responsible for circulating the air throughout the room. If the fan or blower is malfunctioning, it will not be able to move the cool air effectively, resulting in the air conditioner not blowing.

6. Electrical issues: Electrical problems, such as a tripped circuit breaker or a faulty electrical connection, can prevent the air conditioner from receiving power and operating correctly. Check the circuit breakers and ensure that the air conditioner is properly connected to the power source.

7. Thermostat issues: A malfunctioning thermostat may not be correctly signaling the air conditioner to turn on or adjust the fan speed. Check the thermostat to ensure it is set to the desired temperature and that the fan is set to the "On" position.

If the air conditioner is still not blowing air after checking these potential issues, it is recommended to contact a qualified HVAC technician for further diagnosis and repair.