my boiler will no work?
Vaillant 828E - no hot water?
No hot water, intermittent when air temp drops?
Valiant thermostat , BMU-Err ?
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How many factors causes f22 fault?
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can i replace my Potterton EP2 2 way programmer with a Center EHE0200361 RF?
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my vaillant boiler is saying a code com on it ?
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