Troubleshooting Your AC Unit

Zafar Saeed Ahmed

7/19/20231 min read

Troubleshooting Your AC Unit

If your AC isn't blowing cold air or isn't running at all, here are some steps you can take to identify and possibly fix the problem:

  1. Outdoor Cooling Coil: This could be blocked by debris like grass, sticks, or leaves. Make sure the area around your outdoor unit is clear.

  2. Indoor Air Handler Coil: Household dust and debris can block these coils. Try to clean any dust buildup on the coil and change the air filter regularly. If the air handler isn't working, it could be due to a blown fuse or open circuit breaker. Reset the breaker or replace the fuse, and check for any blockages in the return grills that could restrict air circulation.

  3. Filters: If these are clogged or dirty, turn off your AC and the power supply breakers. Clean or replace the filters. If you're unsure where the filters are, consult your local Trane Comfort Specialist™.

  4. Thermostat Controls: These could be set incorrectly. Try turning the thermostat off and then on again, and reset it to the desired temperature.

  5. Refrigerant: If your AC isn't blowing cold air, it could be due to low or leaking refrigerant. The unit might need more refrigerant. A leak can prevent the AC from cooling properly and can also cause other issues like increased humidity levels in your home. If you suspect a refrigerant leak, contact an HVAC professional immediately to repair the unit.