12v master Reset Breaker --- typical causes for tripping?
This is on a 2015 Thor Majestic 28a Class C RV.
On the control panel, there is a light to show that the 12v Reset Breaker has been tripped. Looks like this:
I believe this is a master 12v breaker that goes to the fuse box. Thankfully, it hasn't given me much trouble over the years. I've got two of these RVs and it has only tripped twice in 3 years. One of those times was today while a friend was using my RV. I told him how to reset it. Underneath the dinette seat where the fuse box and converter are, there is the breaker. It looks like this:
He pushed the button and reset it and all seems fine now. But I'm a bit of a perfectionist and I don't like when things like that happen and I'd like to know "why". I asked him what was happening electrically when the breaker tripped. He said he was unplugging from shore power when it happened. He said he first turned off the camp power pedestal breaker, then unplugged the RV from the pedestal, then he plugged the plug into the generator outlet junction box (generator was off) as he put the cord back into the side compartment. When he went back into the RV the master Reset Breaker light was on as it had tripped.
I believe the AC was not on (too cold outside), the microwave was not on, the water pump was not on. This RV has two 12v RV/Marine batteries that are in good shape and fully charged. This RV has 500w of solar along with a 2000w inverter that goes to two outlets in the RV. The inverter might have been on, but nothing was plugged into the inverter outlets when the reset breaker tripped.
Any thoughts as to what could have caused this?
Thanks in advance!
Chris
On the control panel, there is a light to show that the 12v Reset Breaker has been tripped. Looks like this:
I believe this is a master 12v breaker that goes to the fuse box. Thankfully, it hasn't given me much trouble over the years. I've got two of these RVs and it has only tripped twice in 3 years. One of those times was today while a friend was using my RV. I told him how to reset it. Underneath the dinette seat where the fuse box and converter are, there is the breaker. It looks like this:
He pushed the button and reset it and all seems fine now. But I'm a bit of a perfectionist and I don't like when things like that happen and I'd like to know "why". I asked him what was happening electrically when the breaker tripped. He said he was unplugging from shore power when it happened. He said he first turned off the camp power pedestal breaker, then unplugged the RV from the pedestal, then he plugged the plug into the generator outlet junction box (generator was off) as he put the cord back into the side compartment. When he went back into the RV the master Reset Breaker light was on as it had tripped.
I believe the AC was not on (too cold outside), the microwave was not on, the water pump was not on. This RV has two 12v RV/Marine batteries that are in good shape and fully charged. This RV has 500w of solar along with a 2000w inverter that goes to two outlets in the RV. The inverter might have been on, but nothing was plugged into the inverter outlets when the reset breaker tripped.
Any thoughts as to what could have caused this?
Thanks in advance!
Chris
