Attwood mixing valve
I have a Attwood water heater with a mixing valve. It appears the mixing valve has malfunctioned. We get a short shot of hot water then cold every time we turn on a hot water tap. Has any one tried ...
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JPeyton wrote:.
285? lol that's some valve. Worse case I would by pass the mix and just run the hot to the faucet, along with cold to the faucet and mix it the old fashioned way: yourself!
A bit more involved....but one could do a replumb and t-stat change out
OP
Deposits build up in hot side of mixing valve can clog it up.
Yes can soak it in 'CLR' or HOT white vinegar to clean and then rinse thoroughly.
Due to mfg. tamper-proofing (glued allen head screw) the knob to adjust output temp is pain to remove. Sometimes you need to move adjustment back & forth to clear. In order to do that you have to remove glob of glue to get to screw that holds knob in place. When freed knob can be mated with adjustment splines
IF that doesn't work..........replace with a 'residential' mixing valve by WATTS. Just need some nipples for new valve and a LOT less expensive..........LINK
