It makes more sense to have two high-limit switches, one for the 12-volt side and one for the 110 volt side. I had a schematic but I misread it. I also downloaded the referenced manual for the six gallon units. The six gallon unit looks very similar to my ten gallon unit.
Make sure you have the rocker switch outside in the WH compartment turned ON. It normally has a cotter pin through it to keep it from being turned on accidentally.
Start at the element. Turn off the power. Disconnect the wires and check the resistance of the element. If it is open (infinite resistance), You know the element is burned out and there is no point trouble shooting further until you replace the element.
Bedias Cougar wrote: Start at the element. Turn off the power. Disconnect the wires and check the resistance of the element. If it is open (infinite resistance), You know the element is burned out and there is no point trouble shooting further until you replace the element.
I tried this approach on my trouble shooting and the element was totally burned out and the heater sheath was also split so the water provided some electrical flow and the resistance check indicated that the heater was good when it wasn't good. I guess had I drained the water and let it dry out, the resistance check would have worked.
Thanks for all the advice. I called Suburban for help troubleshooting. They told me a couple of things to check, but nothing worked. I checked the breaker, the element for continuity and for 110 power, the two limit switches, the on/off power switch at the hotwater heater and inside the MH. Everything was good, but no 110 to the element. They could recommend no more and told me I would have to pull the unit to check the on/off switch (no small job). I then called Tiffin and they led me through the same steps, but as a final check told me to check the hot water heater power cord that should be plugged in to a 110 outlet in a cargo bay under the sink. Bingo, the plug providing 110 to the water heater had somehow become unplugged due to vibration or moving things around in the cargo bay. A simple fix without having to remove the unit which would have been a headache, not to mention the expense. Hope this may help others.
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