I posted a link to the brochure where it states the OPs unit has a gas/electric WH and in post #18 the OP states
I saw a breaker and it was labeled for micro (I’m assuming microwave) and water hrt. So I too would believe they have 'lectric....
Now, the OP said they would get back to us with the model number...
and they still do have a problem with the gas operation that needs confirmation of 12VDC to the heater control...