Common Air Conditioner Problems

Updated: Jan 3, 2020

Did your air conditioner stop cooling or working? Learn the common air conditioner problems and when to contact Faszold Heating & Cooling for service.

No Routine Maintenance

An air conditioner can stop cooling because of dirty coils and filters or a lack of regular maintenance. Without regular maintenance, compressors or fans can fail early.

Common Air Conditioner Problems
Common Air Conditioner Problems

Maintaining your air conditioner by signing up for our planned maintenance program can ensure that the air conditioner is maintained on a regular basis and working efficiently. Also remember to change or check your filters every couple of months and replace them if they are dirty.

Thermostat Problems

Common thermostat problems include bad batteries, incorrect settings, and the thermostat not being level. If the thermostat isn’t working, the house won’t cool. Make sure you change your thermostat batteries often and that the correct settings are used.

Clogged Condensate Drain Lines

The drain line can become clogged with dirt, dust, and lint. If the drain line becomes clogged, the drain pan will fill up and water will leak out harming your AC unit.

Tripped Breakers and Fuses

Breakers and fuses can go off if an AC unit is on the brink of overheating. Check to make sure your breakers and fuses didn’t trip.

Burned Out Capacitors

If a capacitor goes out, the motors and fans won’t work. If one of the capacitors burns out, the system won’t run efficiently.

Compressor Problems/Low on Refrigerant

If the compressor isn’t working, the AC unit will not cool a home. If there’s not enough or too much coolant or refrigerant, the compressor will stop or fail. If a system was undercharged, a trained service technician should fix the refrigerant charge, so it matches the specifications for that system. This will ensure that the system is operating at its highest efficiency. If a leak is found, a trained service technician should be able to locate and fix the leak, then test the repair, and charge the system with the correct amount of refrigerant.

Corroded or Clogged Evaporator Coils

Evaporator coils can become corroded or clogged due to lack of changing filters regularly.

Dirty Condenser Coils

Condenser coils can become dirty with grass, dirt, dust.

Worn Contactor

The contactor can become worn which makes it hard for electric current to start motors.

If your air conditioner isn’t working or if you’d like to schedule maintenance, contact Faszold Heating & Cooling at 636-397-1237 or schedule online. We also offer a Planned Maintenance Program to keep your system running efficiently and keeping you from having common air conditioner problems.

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