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boudreauxww
Oct 25, 2006, 12:21 PM
The two hot water heater thermostats are set at 120 deg. F. Occasionally the high temperature limit switch will trip. What can cause this?

RickJ
Oct 25, 2006, 12:28 PM
This is typical when they are going bad... and the more they trip, the weaker they get.

Our rule of thumb on apartments we manage: If the tank is under 8 or so years old we replace the part... if older than that we replace the tank.

speedball1
Oct 26, 2006, 04:49 PM
Our rule of thumb on apartments we manage: If the tank is under 8 or so years old we replace the part... if older than that we replace the tank.

A exception to this rule is my water heater. My house was built in 1954 and I still have the same 30 gallon one element heater. I flush it once a month and in all the years it's been installed have only changed out one element.
This heater is built into the kitchen cabinets and would be a real hassle to replace. But then why replace something that's working? Cheers, Tom