120 Volt Breaker Issue

Normally, coaches have inverter outlets for the ice maker , and will have a non-inverter outlet for the fridge itself.

enblethen wrote:
Look for the larger #10 wire coming from the shore power cord. Many go to the screw terminal on a 30 amp breaker. This feeds the rest of the breaker via the buss work.
The screw terminals on the 15 amp breakers feed the device/receptacle.
I am guessing that some one replaced the 30 amp breaker with a fifteen amp.

This post got me to thinking. On this rig the subpanel has the 30 amp inverter input breaker on the far left, then the 15 amp refrigerator breaker, a couple more 15 amp breakers for various things, the microwave 15 amp breaker and one more 15 amp breaker far right.

See if this scenario makes sense. This is me guessing what might be the problem, [COLOR=]the rig is not available for me to look at anymore

The input wire from the inverter and the refrigerator wire are hooked backwards. So the input from the inverter is actually hooked to the 15 amp refrigerator breaker and supplies the rest of the breakers on the panel. I never thought to check the other circuits to see if they are all dead if the refrigerator breaker is off. He only mentioned the microwave being dead after the refrigerator breaker tripped.

I have wired my fridge so I can choose to run off inverter.... Or not.. Turns running it off inverter is more power (350 watts) than the engine delivers so the batteries run down.. Who'd a thunk it.

Of course there are some outlets that I do want on the inverter from time to time so when I want power to them. I force the Fridge to GAS and flip the selector switch (30 amp tansfer) and it ..> Transfers.

trailrider wrote:

enblethen wrote:
Look for the larger #10 wire coming from the shore power cord. Many go to the screw terminal on a 30 amp breaker. This feeds the rest of the breaker via the buss work.
The screw terminals on the 15 amp breakers feed the device/receptacle.
I am guessing that some one replaced the 30 amp breaker with a fifteen amp.

This post got me to thinking. On this rig the subpanel has the 30 amp inverter input breaker on the far left, then the 15 amp refrigerator breaker, a couple more 15 amp breakers for various things, the microwave 15 amp breaker and one more 15 amp breaker far right.

See if this scenario makes sense. This is me guessing what might be the problem, [COLOR=]the rig is not available for me to look at anymore

The input wire from the inverter and the refrigerator wire are hooked backwards. So the input from the inverter is actually hooked to the 15 amp refrigerator breaker and supplies the rest of the breakers on the panel. I never thought to check the other circuits to see if they are all dead if the refrigerator breaker is off. He only mentioned the microwave being dead after the refrigerator breaker tripped.

Bump

Since this is a subpanel you're working with, it also involves the main load center and associated breakers in that box. The sub panel breakers and associated circuits may be connected to the same bus or circuit in that main load center.

One breaker may also be back fed by the other if there is a junction box or device box where they are connected together.

westend wrote:
Since this is a subpanel you're working with, it also involves the main load center and associated breakers in that box. The sub panel breakers and associated circuits may be connected to the same bus or circuit in that main load center.

One breaker may also be back fed by the other if there is a junction box or device box where they are connected together.

No to all that. You need to go back and read my previous posts.