Do AC units have a power switch?
Most air conditioners have a shut-off switch near the outdoor unit. It’s usually a metal box that’s hanging on your house. If someone has recently worked on the AC, they may have left it in the “off” position on accident.
Why does my AC fuse keep tripping?
The electric motors in your air conditioner can run for hours, and when they are left running for too long, the wire insulation can break down leading to an electrical short. More electricity passes through than the wires can handle, which then trips the breakers.
What causes a fuse to blow on a blower motor?
If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current from a bad relay will blow the fuse and cut power in order to protect the system.
What causes a bad or failing blower motor relay?
Blown fuses. One of the first symptoms of a bad or failing AC blower motor relay is a blown AC blower motor relay circuit fuse. If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current…
What causes an AC unit to trip a circuit breaker?
From best-case to worst-case scenario, the most probable causes of your AC circuit breaker tripping include: Power surge in the area (probably due to a thunderstorm) Clogged air filter. Dirty condenser coil. Loose wire, short or electrical component failure. Fan motor malfunction. Frozen evaporator coil.
Where is the emergency shut off switch on my AC unit?
Many outdoor AC units have a shut-off switch. These switches are typically located near the unit and are within a metal box mounted to the exterior of your home. They are sometimes labeled as an emergency shut-off. If you recently had work done on your air conditioner, it’s possible the workman forgot to flip the switch back to the ON position.