Consumer reports and air conditioner pros identify how to troubleshoot the eight most common air conditioner problems that crop up with window and central air conditioners.
Air conditioner panel not working.
Check the air conditioner power supply cord for any signs of fraying or damage.
Be sure it is receiving power at the electrical panel.
If your window air conditioner won t turn on it may be that it is not getting any power.
Check the receptacle with a tester or plug in a known working appliance such as a lamp or a fan to verify that the circuit is live.
If your central air conditioner is not cooling right save money time and get comfortable again with these expert diy air conditioning repair techniques.
Your air conditioner fan is not working.
If your ac fan isn t working you ll want to first check your indoor electrical system and make sure you don t have a tripped or switched off circuit breaker that s preventing your ac unit from receiving power.
Flip the air conditioning service and furnace circuit breakers in your main electrical panel to the off position.
When ac units run they create condensation which is removed from the unit through a drain line.
Air conditioner not cooling air conditioner won t blow cold air.
If your ac is not working at all.
If these aren t the problem check the air filter.
Cr s top picks.
If it s clogged with dirt or other debris you won t get any air flow.
When the drain line becomes clogged a safety switch trips and shuts down your air conditioner.
If your air conditioner will turn on and your thermostat is set properly but your system is not cooling you may have a dirty or blocked air condenser.
11 possible causes and potential solutions.
The reason your air conditioner won t turn on could be because the condensate drain line is clogged.
Next check the ac itself.
Your air conditioner is not cooling the air.
Then yank the disconnect block photo 1 and clean the condenser coils photo 2.
Foot caster parts lighting light bulb parts miscellaneous parts motor parts panel parts power cord parts remote control parts.
If your ac system turns on but doesn t blow out cold air ensure all the vents are open and the thermostat is set properly.
The ac control switch is what powers and controls the ac compressor as well as the entire system.
Air handler water heater humidifier unit heater.
Next turn off the power switch right at the furnace or air handler.