Heating on, water cold: gas condensing boiler

FiHH · 4 Dec 2019

TBF to them it is an intermittent fault so of course was working perfectly when they looked at it.

Gasguru · 4 Dec 2019

Nope...not buying that. Did they actually pull apart the zone valve and test the motor torque?
Did the measure the microswitch contact resistance to see if was flakey?

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Heating on, water cold: gas condensing boiler

FiHH

Gasguru

DIYnot Local

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