If your air conditioner stopped working check these things below first. This example would be for a split system where the A/C is outside on the ground and the furnace is in the house.
No Air Flow?
Change your HVAC air filter if dirty
Open all registers
Air Conditioner still not working? Most likely problem is — Bad blower motor/ capacitor, bad control board
Outside unit not turning on?
Check the outside unit, if not turning on reset the breaker labeled ac air conditioning
AC air conditioning still not working? Most likely problem is — bad capacitor(s), bad condenser fan motor, bad compressor, failed contactor
Outside unit turning on but air conditioner not cooling?
If you can confirm the compressor and condenser fan motor are turning on and there is airflow inside the house and the air conditioners isn't cooling there is likely a refrigerant leak.
Most likely problem is — 85% likely leaking from the evaporator coil 10% likely leaking from the condensing unit
Nothings Happening / Thermostat is blank
Change the thermostat batteries
Reset breaker labeled furnace on main panel
Air conditioner till not working? Most likely problem is — low voltage short in the system, bad thermostat
Water leaking from ac air conditioning unit or from secondary drain?
The air conditioner's primary drain is (usually about 6 inches off the ground next to the A/C) Connect a wet/dry shop-vac to the drain and suck it out for a minute or so. If you collect a lot of water and its very dirty you may have unclogged the line, causing the water to get backed up. This resolves air conditioning water leaks, most of the time. Run the HVAC unit and monitor the problem. Call for service if it continues to improperly drain.
Air Conditioning Unit Still not working? Give us a call (916)671-5542.