Originally Posted by mark0224
the light should come on for a second before the water heater lights, and it's not. water never got warm had electric element switch turned off. Will try again tomorrow.
Very easy to troubleshoot the AC side but a little more complicated to troubleshoot the DC side.
Go outside and press both reset buttons (gently! don't break them).
They are located behind the rubber circles.
If the one on the right pops in; you solved your problem.
If not you might want to remove the cover and visually inspect the thermostats for obvious damage.
They are easy to replace but make sure you get the AC or DC one to replace a bad one. They are not interchangeable.
If you want hotter water and you have a bad thermostat, replace BOTH with the higher temperature (never just one).
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