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how can i fix a vaillant boiler ecotec plus 937 (F.22)problem,does anyone know???

michele
December 2010
VaillantVaillant ecotec plus 937Heating, Home Heating SystemsHeating Boiler Ecotec
F22 is low system pressure, underneath the boiler there are two grey taps, open both (1/4 turn) until the pressure raises into the grey area on the guage then close both.
Ideally, the pressure should be between 1-1.5bar when the system is cold, if you press the - (minus) button below the display, it will show you the pressure in the boiler.

Carefree
December 2010

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Vaillant Ecotec Plus 937 Boiler - F.22 Error Fix