Lost Coach power

[JEdsonStagg]

I have a 2018 Redhawk 26xd. We just lost coach power. The main battery disconnect switch is out. Toggling it on doesn't work. It clicks and then goes out. I thought the solenoid might have disengaged. So I disconnected the battery ground wire for 5 minutes. Then reconnected it. Same issue.

We have shore power, microwave, AC and lights. But
1. No coach power
2. Blown 15 amp fuse for the refrigerator/slideout motor
3. No refrigerator
4. No water pump
5. No slideout motor.

The 15 amp fuse for the refrigerator/slideout motor was blown. Replaced the fuse. Coach power came back on along with pump, refrigerator and slideout motor.

Everything worked fine for a few hours. But then we lost coach power again. Same scenario -
1. Blown fuse
2. no coach power
3. no water pump
4. no refrigerator
5. no slideout motor.

I thought it might be a bad solenoid. But don't know why the 15 amp fuse would blow. Does anyone have any ideas?

[ifallsguy]

If you are plugged into shore power at a campground, possible you suffered either a surge, power spike or under voltage. That could have blown the circuit breaker on your converter box.

If you have a meter, I would start by checking the voltages at the power source.

[JEdsonStagg]

Thanks for the post. I forgot to mention. I have a surge guard connected to the shore power. I protects against low and high voltage and reverse polarity. But I put a meter on it anyway. Voltage holding at 115. I also checked the fuses on the solenoid switch. Both are good and all solenoid connections are clean and tight.

[cabinetmaker]

Try to isolate it better...you say the 15amp fuse blows and refrigerator and slide motor are dead.

Try this. replace the fuse again but electrically disconnect the refrigerator 12 volt in the back of the unit so it is not hooked to the 12 volt system. See what happens.

If your still blowing then it's not the refrigerator. If you don't blow then it is.

Do the same with the water pump. Disconnect and see what happens.

Likewise if it still blows then its a short going to the slide motor.

It will take some time to trace it down but I bet you find it.

[JEdsonStagg]

Did some further testing. Replaced the 15 amp fuse. Ran the frig on gas only. Seems to be holding.... for now. I'm wondering is the Norcold fridge circuit board is the culprit.