[Vfontan]

I recently purchased an used TM T40C and I am getting no hot water inside the house. Both switches are on and the voltmeter says the electric heating element is good. The water is hot coming out of the heater's relieve valve but not inside the house. I've looked to see if there is a bypass valve that might be open and mixing cold and hot water between the heater and the house to no avail and the outside shower valves are turned off. Unless the water temperature is dropping that drastically between the heater and the house I am at a loss here.
Pilot won't come on either and it still cold at night so I might boiling water to shower for the near future or start replacing components.
Has anyone had similar issues or know of anything else I might need to check?
Thanks