Refrigerator Blowing Breaker

MrWizard wrote:
You turned off the water heater
And the converter/ charger ?

If so
Heating element is shorted out to ground
Replace the heating element

X2. Cartridge heaters often open, but they can short, too. The heater is the only part of the circuit that could trip a high-amperage breaker.

If you're tripping the house circuit breaker
Using only the fridge on an extension cord
There are other items in the house on the circuit and your 3 amps from the fridge is over load

But i think the heating element in the fridge is leaking to ground and needs to be replaced
Time to use propane until you replace that heating element

If I understand what you are saying, you unplugged the fridge from the outlet behind the fridge and plugged it (via extension cord?) directly to your house outlet and it still tripped the house breaker.

If it trips the house breaker when connected directly to a house outlet I don't know why it would not trip the breaker on your internal trailer distribution panel when connected normally and plugged into a 30 amp outlet. The fridge AC power should be wired from one of your trailer distribution panel 15 or 20 amp sub circuit breakers. What are the amp ratings of the "house breakers" you are tripping?

One thing that most people don't realize is that a thermal breaker wears out over time, especially it it trips once in a while.

IS the 'normal 110V outlet' a GFCI outlet or GFCI protected outlet?

30 amps is a normal 110 outlet. It is simply wired using heavier duty wire. A standard household outlet while 120VAC not 110 VAC is 15 or 20 amps. If your blowing a breaker it means your drawing too much power. Reduce useage. Turn the converter off, be sure the water heater is off. Then, if its still tripping the breaker check the electric element on the refer. Possibly it is dieing.

Exactly where did you plug into 30 amps?

Plugging into a marginally overloaded house receptacle circuit breaker branch will send it over the edge. So will a connection to a marginal circuit breaker. They do get old and weak.

Try shutting off ALL breakers in the rig except the one to the refrigerator. That should exclude what isn't the problem.

Moved from Technology

You turned off the water heater
And the converter/ charger ?

If so
Heating element is shorted out to ground
Replace the heating element