We've got a 2017 Catalina Coachman bunkhouse. We're visiting family for the 4th of July weekend and are hooked up to 15amp shore power and the city water connection. I've double checked and the water feed we're getting is cold. The water heater switch is off. The issue that I'm concerned about is we appear to have an endless supply of hot water with the water heater switch in the off position. Does it turn on automatically when connected to city water? I thought the heater was propane only, is it also electric?

Msu50000 wrote:We've got a 2017 Catalina Coachman bunkhouse. We're visiting family for the 4th of July weekend and are hooked up to 15amp shore power and the city water connection. I've double checked and the water feed we're getting is cold. The water heater switch is off. The issue that I'm concerned about is we appear to have an endless supply of hot water with the water heater switch in the off position. Does it turn on automatically when connected to city water? I thought the heater was propane only, is it also electric?1. hot water switch is not automatic. if it were and you forgot clear the water lines of any air bubbles you could damage the water heater.2.hot water heater should work on both elec and propane

I'm stumped then, my wife has taken a shower, we've washed dishes, washed hands and in general have not conserved. It has also been more than 2 weeks since we last camped. Any ideas on how we're getting hot water with the switch off? No issues with battery drain while stored.

there is normally two switches for the water heater... one to control electric heating (which uses 120V... not 12v), the other to control propane heating. Are they both OFF?

Msu50000 wrote:I'm stumped then, my wife has taken a shower, we've washed dishes, washed hands and in general have not conserved. It has also been more than 2 weeks since we last camped. Any ideas on how we're getting hot water with the switch off? No issues with battery drain while stored.My hot water heater switch is on the control board above the sink and a small red light turns on when I turn the switch on. If you have no small red light to tell you if the heater is on or off, then I think it is time for a trip to the RV shop to have all the electrical systems checked.

Small switch with red light is off for the WH. I'm not aware of another switch in the trailer. Sounds like I may need to take it in.

Maybe I'm missing something on the water heater...

23 Replies

budwich
Explorer
Jul 04, 2017
there is normally two switches for the water heater... one to control electric heating (which uses 120V... not 12v), the other to control propane heating. Are they both OFF?
Msu50000
Explorer
Jul 04, 2017
I'm stumped then, my wife has taken a shower, we've washed dishes, washed hands and in general have not conserved. It has also been more than 2 weeks since we last camped. Any ideas on how we're getting hot water with the switch off? No issues with battery drain while stored.
MarkTwain
Explorer
Jul 04, 2017
Msu50000 wrote:
We've got a 2017 Catalina Coachman bunkhouse. We're visiting family for the 4th of July weekend and are hooked up to 15amp shore power and the city water connection.

I've double checked and the water feed we're getting is cold. The water heater switch is off. The issue that I'm concerned about is we appear to have an endless supply of hot water with the water heater switch in the off position. Does it turn on automatically when connected to city water? I thought the heater was propane only, is it also electric?

1. hot water switch is not automatic. if it were and you forgot clear the water lines of any air bubbles you could damage the water heater.
2.hot water heater should work on both elec and propane

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Maybe I'm missing something on the water heater...

23 Replies

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