What to do when your RV rooftop AC trips the breaker?

One of the most common reasons for this problem is the compressor in the air conditioner is drawing too many amps. This could happen when it starts up or while it’s running. If your compressor has gone bad, it will need to be replaced. Try cleaning the condenser coils of any dirt or debris.

What causes a breaker to flip on a rooftop air conditioner?

This could be caused by several reasons. The rooftop air conditioner draws a lot of power, potentially putting your electrical system right on the edge. If, for example, you run the microwave or convection oven at the same time the air conditioner is on, it’s likely to flip the breaker.

Is the Dometic rooftop AC throwing breaker too hot?

The compressor in the rooftop unit is way too hot to touch. I have replaced the circuit breaker (it was tripping at 13.5 Amps on a 15 amp circuit.) After letting everything cool off for a couple hours (still in 100 degree afternoon heat) I put a clamp on amp meter on the feed wire and turned on the A/C.

Why does an AC breaker trip when the AC is on?

Well, an air conditioner usually trips the breaker because it’s pulling in more amps than the breaker is rated for. That is, if you have a 20-amp breaker and the AC pulls 30 amps, the breaker trips. That’s why breakers trip: to protect you from overcurrents that can damage equipment and cause fires (yikes).

One of the most common reasons for this problem is the compressor in the air conditioner is drawing too many amps. This could happen when it starts up or while it’s running. If your compressor has gone bad, it will need to be replaced. Try cleaning the condenser coils of any dirt or debris.

This could be caused by several reasons. The rooftop air conditioner draws a lot of power, potentially putting your electrical system right on the edge. If, for example, you run the microwave or convection oven at the same time the air conditioner is on, it’s likely to flip the breaker.

The compressor in the rooftop unit is way too hot to touch. I have replaced the circuit breaker (it was tripping at 13.5 Amps on a 15 amp circuit.) After letting everything cool off for a couple hours (still in 100 degree afternoon heat) I put a clamp on amp meter on the feed wire and turned on the A/C.

Well, an air conditioner usually trips the breaker because it’s pulling in more amps than the breaker is rated for. That is, if you have a 20-amp breaker and the AC pulls 30 amps, the breaker trips. That’s why breakers trip: to protect you from overcurrents that can damage equipment and cause fires (yikes).