When your AC system is low on refrigerant, the compressor will malfunction and shut off your compressor because the pressure is too low. Then, when your compressor is off, the pressure will rise again and it will turn back on.
Why does my air handler keep turning off?
Dirty Air Filter: An old and clogged air filter limits the amount of air entering and leaving your air conditioner. When this happens, your AC’s evaporator coils can freeze, and short cycling can occur. If your house AC keeps shutting off, try cleaning your air filter or replacing it with a new one.
Why does my AC unit keep turning on and off?
You may have a dirty air filter problem. When the air filter restricts airflow, the evaporator coil can become frozen, causing the unit to turn on and off. As a reminder, air filters should be replaced at least once a month. You may do this more often if you are constantly running your air in the summer.
Why does my AC keep turning off after a few seconds?
Got a central air conditioner that turns on and off every few seconds or minutes? This is called “short cycling” (because normally the AC has a regular on and off “cycle” that varies with the outside temperature.) Short cycling wears out the outside unit’s compressor.
How do I stop my AC from short cycling?
How To Stop and Prevent Short-Cycling
- Check your air filter. Believe it or not, a clogged air filter can cause a wide variety of air conditioning issues. …
- Check your thermostat placement. …
- Check your air conditioner’s refrigerant levels. …
- Replace the low-pressure control switch. …
- Check the compressor.
Why does my AC compressor shut off after 2 3 minutes?
If you notice your AC compressor shut off after 2-3 minutes of operation, then your AC compressor is most likely overheating or starting to fail.
Why is my air compressor short cycling?
Pressure or temperature control differential is too small: When the pressure controller’s low pressure differential is set too tight, it can cause the compressor to short cycle. When your temperature and pressure differential is too small you’ll take longer to achieve set point and use more energy use in the process.
