perrycat
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Was working on an electric water heater yesterday, a 3 yr old Bradford/White 50gal., It had a mixing valve to temper the hot water.....why? I don't know...they have a regular gas forced air furnace....
Anyway, the problem was no hot water, and the relief valve dripping like crazy. So, I checked the power, had power, checked the high limit switch, it had tripped....I reset the high limit switch, could immediately hear the heater working......turned it back off.....checked the continuity and ohms on the elements top and bottom, both good.....checked the house pressure and it was 105psi......I guessed that was the reason for the relief valve leaking......
But what I couldn't figure out is okay, you reset the high limit switch...how do you figure WHY the high limit switch tripped? I waited for it to heat up and checked to make sure it toggled over to the bottom element, and it did...and the temperature was set at "B" of "hot, A, B, C," so I assumed it was about 140 probably, and left it at that.
Well, any help for future reference would be appreciated, thanks
Anyway, the problem was no hot water, and the relief valve dripping like crazy. So, I checked the power, had power, checked the high limit switch, it had tripped....I reset the high limit switch, could immediately hear the heater working......turned it back off.....checked the continuity and ohms on the elements top and bottom, both good.....checked the house pressure and it was 105psi......I guessed that was the reason for the relief valve leaking......
But what I couldn't figure out is okay, you reset the high limit switch...how do you figure WHY the high limit switch tripped? I waited for it to heat up and checked to make sure it toggled over to the bottom element, and it did...and the temperature was set at "B" of "hot, A, B, C," so I assumed it was about 140 probably, and left it at that.
Well, any help for future reference would be appreciated, thanks