Why Your A/C Won’t Turn On?
There are a few possibilities why your A/C won’t turn on. Here are some of the most common:
- Loss of power is one reason your AC may not turn on. Start by checking breakers in the main electrical panel to see if any breakers are tripping. If it is a breaker and it continues to trip, it could be an electrical issue, or it could signify that the compressor in the AC unit is failing.
- Fuses or breakers in the outdoor disconnect box can fail, causing a loss of power to the AC.
- A break in control wiring from the thermostat to the AC could cause the AC unit not to turn on.
- A failed thermostat is another reason you may have no AC. If the system has tripped on high pressure due to clogged filters or dirty coils, it could need to be manually reset in the control panel at the AC unit itself.
For more information, check out our troubleshooting article on why your A/C won’t turn on.
Why Your A/C Won’t Turn Off?
If your AC won’t turn off, first check your fan setting at the thermostat. The AC may have finished its cycle and may actually be turned off, but if the fan is set to “on” or “Continuous,” it may just be the blower fan in the furnace that is running.