Location of water htr. sweet?

[Pirate]

Trying to find the water heater switch on our, new to us, 1992 Ultra 27'.
Heater has no 12 volt getting to it.
I can't find the switch, or hole, where it might have been.
Any ideas?
Also, if I run new wires to htr, what type switch is needed? How does the switch, control the blue wire?
Red is positive, green is ground. What's the blue?
Thanks for any help.

[Restorium]

This link may help;

http://www.irv2.com/forums/f54/atwood-water-heater-wiring-help-358134.html

[Pirate]

Thanks.
I should have mentioned that it's a Suburban heater.

[Restorium]

Thanks.
I should have mentioned that it's a Suburban heater.

http://waterheatertimer.org/pdf/Suburban_Water_Heater_Service_Manual.pdf

[jamesham]

On my 96 Ultra, there are a bunch of switches and indicator lights on the vent hood above the stove and below the microwave. To get power to the water heater, the #7 fuse must be good, switch in on position, and heater tank full of water. The 12 volts comes either from the battery or power converter if plugged in.


Trying to find the water heater switch on our, new to us, 1992 Ultra 27'.
Heater has no 12 volt getting to it.
I can't find the switch, or hole, where it might have been.
Any ideas?
Also, if I run new wires to htr, what type switch is needed? How does the switch, control the blue wire?
Red is positive, green is ground. What's the blue?
Thanks for any help.