Air Conditioner Troubleshooting Guide

Your central AC system will wear down over time, giving rise to numerous problems. Before calling over a professional, you may want to do some troubleshooting on your own and see if repairing the system can be a DIY project you can accomplish on your own.

1. Your AC Does Not Power On

If your AC won’t start, the problem may be a tripped circuit breaker, so take a look at your electrical panel and ensure that the AC breaker is in the “on” position. If the breaker keeps tripping every time you turn on the AC, or if you actually experience a blown fuse, this will signify an overheating system. As for why it would overheat, the possible reasons include:

  • Clogged air filters
  • A dirty evaporator coil
  • A failing compressor
  • Low refrigerant levels

Air filter replacement is a basic maintenance task that every homeowner should be able to perform. The evaporator coil could be cleaned with a simple solution of warm water and detergent. Bad compressors must be replaced.

When It Blows Lukewarm Air

If the air is lukewarm or hot, see if your thermostat is set to “cool” or to “heat.” If it’s correctly set to “cool,” then the problem could indicate, once again, a clogged filter or a dirty coil.

Another possibility is that your refrigerant levels are low. Have you heard any unusually loud hissing or whistling sounds from your AC? These could point to a refrigerant leak. Or it could be that whoever installed your AC was unprofessional and put in the wrong amount of refrigerant.

When Rooms Are Left With Warm Spots

So, you’ve noticed that some rooms are cooler than others. Uneven cooling is usually the result of blocked or debris-filled vents. Look around to see if any of your air registers are closed. Consider having the ducts cleaned. There may also be an air leak in the ducts leading to your warmer rooms. An HVAC professional could detect these and have them sealed.

Customer Satisfaction Guaranteed

Temp Right Service is here for the people of Missoula, MT. We can perform AC repairs and maintenance and are also experienced in handling retrofits and renovations. We also offer indoor air quality assessments and proven solutions. Call today for an appointment and learn all the ways we can help you with your indoor climate comfort.

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