grundfos amazon 1.5 bar twin shower pump

pump wont cut in on hot water. filters clean tried switching reed switch.good water supply.will come on as soon as you turn on cold tap
Asked 7 years ago by Joseph
You have carried out all the logical tests .......Switched the reed switches checked the water supply so unless the actuator (Torpedo like thing )is stuck and isn't rising to meet the reed switch then I think the only thing that is left is a faulty PCB

Answered 7 years ago by Anonymous

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