Monitor Panel/Water Heater troubles

[sjones1025]

Hi there, I have a 2008 Pioneer Spirit travel trailer and I've run into a confusing issue with my water heater and monitor panel. I'm hoping someone can help point me in the right direction for troubleshooting.

I was having an issue with not having hot water, my monitor panel was working fine. It's a simple KIB panel shows tank level, battery indicator and has a switch for the HTR and Pump. All were working when I started down my water heater troubleshooting mission. My thermal cutoff switch appeared to be my problem. Water heater would not light up when connected to cutoff switch, when I removed it to bypass, the water heater lit up. I disconnected the bypass as I went to go find a new cutoff switch.

Found a new thermal cutoff switch, check it all for good continuity and now my monitor panel doesn't light up for the tank levels, battery indicator and HTR switch. The water pump switch does light up and pump is working fine.

I checked all the fuses I can find and they all check out, I reset my breaker switches and still no luck with my monitor panel.

Has anyone run into this issue and have any suggestions? Any help would be greatly appreciated.

[sjones1025]

Thanks all for the great information. I found the root of my issue. When I did the bypass test, I didn't put the cutoff back on the power wire, closed the door and the power wire touched the metal and burned out my fuse. When I tested my fuses I didn't actually pull them out and of course the fuse was labeled wrong. Anyhow changed out the fuse and my panel started to work and my heater fired up. I'm good to go.

[newman_fulltime]

water heater is in lockout mode go outside unplug from the black box on the water heater wait a minute plug back in and good to go

[Old-Biscuit]

Power for monitor panel should come from DC Dist Panel....FUSED

Might have shorted circuit board .......och!

Here is a manual......troubleshooting starts on pg 2. Wiring diagrams follow
K-Panel LINK