If your central air conditioner will not turn on try to troubleshoot the problem yourself before calling a serviceman out to your home.
Outside central air unit not turning on.
If your air conditioner doesn t have a reset button try this.
Turn it back on again.
This portion is used almost all air conditioner units to help control various parts.
The unit freezes up.
Unfortunately they can be expensive to repair when something goes wrong.
After some investigating you determine that your outside ac unit isn t running but the inside is.
This is a very common problem whether it s an air conditioner or a heat pump.
Typically this means one of two things.
Central air conditioners are a convenient and economical way to cool down an entire house.
Turn off your ac at the thermostat.
If you do not have a reset switch you can turn off your air conditioner at the thermostat and wait for 5 minutes before turning it back on.
Try resetting the air conditioner some air conditioners have reset switches near the outside unit.
One inside in a closet attic or utility room inside of your house and an outside unit.
Outdoor unit won t come on outdoor unit not running.
Packaged ac unit a packaged unit is just one big unit that has both of these parts and is typically located on the roof.
Or maybe it s running but not cooling.
Split ac unit a split unit is an air conditioner that has two parts.
Your outside ac hums but the fan doesn t spin or the entire outside ac unit isn t working at all.
An indication that the control board is not working is not running the fan or compressor circuit.
Either turn off the breaker in the panel or pull the disconnect switch outside at the condenser.
Your system is probably low on freon and needs to be recharged.
This video walks you through a lot of the common fixes while explaining how it all wor.
If you are not getting cold air when the thermostat is on and set to cool you may need to reset the compressor.
If the high pressure lines from the condenser to the furnace or the evaporator coil in the top of the furnace are iced up then shut the system down.
You can try pushing this button to see if it helps.
And there are many things that can prevent the outdoor unit from starting some of which can be quite serious.
If your outside ac unit not turning on and you have confirmed that the power source is good then the problem may be the electronic control board.
Despite hearing the sound of the ac turning on your house is not cooling down as it used to.