Truma Water Heater Leak

[Doug S]

Hi - I'm getting ready to leave home in a few days and am going through the standard "get ready" list. I found the water pump wouldn't shut off and also saw water leaking outside from the hot water heater. I turned off the bypass valve and the pump and the leak stopped. I checked the overpressure relief valve and didn't see anything obvious, but when I clamped it back in place and tried again, it leaked much worse than before. Is this common/simple?  - Thanks in advance - Doug

[Galway Girl]

I’m sure you’ve done this but just to check a few things:

1:  Strainer in place and fully seated.  

2: Pop off sealed, try open and close a few times to make sure it seals. 

 

If neither of those work you may have a split in the back side of the black mixing chamber.  (Looks like a big themos ) This could happen if you didn’t drain and leave strainer out in cold weather.  (That would be a big repair bill.$