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We have 340 questions about mending 'central heating switch' in category Heating, Home Heating Systems which have been answered
Boiler cycle?
Remove boiler cover?
Vaillant ecotec 831 plus?
Siemens RDJ10RF thermostat problem?
Vaillant F22 fault?
Fan tries to run every 15 seconds then stops immediately?
Worcester Bosch 532/i Combi Boiler?
How do I work my Storad storage heater?
Worcester boiler dripping water?