Outside Central Air Unit Will Not Turn Off

Thermistor the thermistor is what detects the indoor temperature of your home.

Outside central air unit will not turn off.

Fried contactor getting stuck not releasing. Turn the thermostat up to a temperature at or near the outside temperature. If it is faulty it may not tell your air conditioning system to turn off when it should. Air conditioner is turned off but fan keeps running if your blower fan is continuing to run after the system has already turned off and you made sure your thermostat isn t set to the on position then you ll want to try and pinpoint the issue.

The unit freezes up. To turn the blower fan off simply set your thermostat to the auto option. If the unit continues to run it may be the thermostat. An ac compressor that won t turn on.

This is an issue that you ll want to solve as soon as possible to avoid unnecessary energy consumption not to mention damage to your system. Either turn off the breaker in the panel or pull the disconnect switch outside at the condenser. Remove and replace it with a new thermostat. The thermostat reaches the desired temperature the indoor unit shuts off the air stops blowing but the outdoor unit keeps on running.

If you re lucky enough to have a unit with a reset switch located near the outside unit all you need to do is simply press the switch. In the heating mode if it s a heat pump it could eventually shut off on a high pressure safety device. Outdoor unit won t shut off unless i use the circuit breaker. If your central air conditioner will not turn on try to troubleshoot the problem yourself before calling a serviceman out to your home.

Central air conditioners are a convenient and economical way to cool down an entire house. An outdoor air conditioner that won t shut off can occur on central air conditioning systems or on heat pumps when in cooling mode. Within this box is a shut off or emergency switch. 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.

Main control your air conditioning system has a control board in it that provides the power to the compressor and the fan motors. Your system is probably low on freon and needs to be recharged. Unfortunately they can be expensive to repair when something goes wrong. You may find that there s a metal box hanging on the wall near the outside unit.

Make sure it s in the on position as someone might have accidentally left it in the off position. Wait to see if the air conditioning unit fan eventually shuts off.