Vaillant boilers, Ecotec, Ecomax, Turbomax.
Losing pressure when the heating is turned on?? What causes high pressure, or the gauge to go into the red on your boiler, then low pressure afterwards and the F.22, F.20 and F.28 FAULT CODE?
Негізгі бет Vaillant Boiler: High pressure on your boiler pressure gauge.. Why?
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