10-26-2022, 06:31 AM
I picked this thread because it more closely mirrored a problem we experienced.
Edith informed me we had no hot water. She couldn’t do her dishes, she gets upset when her routines are interrupted. My first thought was the fluid was low since the temperature was in the 200’s but, that was not the case. The tempering valve is under the burner and the knob has suffered from age and heat so the splines were gone and that made it impossible to turn. Removed the burner, shut the pumps off, bled down the pressure and removed the cap on the valve exposing the internals. I’ll call this scenario RB, it repeats! Kinda reminds one of the statement “ doing the same thing over and over expecting a different result “.
Replaced the whole internals with new from a complete new valve, reinstalled the burner. Same thing! RB, this time removed the temperature sensing device. Tested this time without reinstalling the burner, same result! There must be something under the valve seat. Each test requires pressuring the water system and then bleeding it down to try something else. Tried pushing on the spring loaded seat, no deal! Tried forcing water through the seat, no deal. Tried air pressure, no deal. By this time (two days), I’ve had enough.
Cut the valve out
Bypassed the hot and capped the cold
Replubmbed to a more convenient location
Inspection of the old valve revealed the seat was worm out and would try to close canted allowing cold water to flood into the hot.
Edith is happy now!
Edith informed me we had no hot water. She couldn’t do her dishes, she gets upset when her routines are interrupted. My first thought was the fluid was low since the temperature was in the 200’s but, that was not the case. The tempering valve is under the burner and the knob has suffered from age and heat so the splines were gone and that made it impossible to turn. Removed the burner, shut the pumps off, bled down the pressure and removed the cap on the valve exposing the internals. I’ll call this scenario RB, it repeats! Kinda reminds one of the statement “ doing the same thing over and over expecting a different result “.
Replaced the whole internals with new from a complete new valve, reinstalled the burner. Same thing! RB, this time removed the temperature sensing device. Tested this time without reinstalling the burner, same result! There must be something under the valve seat. Each test requires pressuring the water system and then bleeding it down to try something else. Tried pushing on the spring loaded seat, no deal! Tried forcing water through the seat, no deal. Tried air pressure, no deal. By this time (two days), I’ve had enough.
Cut the valve out
Bypassed the hot and capped the cold
Replubmbed to a more convenient location
Inspection of the old valve revealed the seat was worm out and would try to close canted allowing cold water to flood into the hot.
Edith is happy now!
Gordon Jones
2000-45'-2slide-#567