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my vaillant 630 boiler flashes f61?

my vaillant 630 boiler keeps flashing f61 and f27

andy
December 2009
VaillantHeating, Home Heating SystemsBoiler Flashes Flashing
Short circuit/earth (ground) leak in cable harness to gas valves, gas
valve assembly defective (earth/ground leak from coils), electronic
control system defective

b
December 2009

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