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We have 242 questions about mending 'water heat exchanger' in category Heating, Home Heating Systems which have been answered
Fan tries to run every 15 seconds then stops immediately?
Worcester boiler dripping water?
Boiler cycle?
Siemens RDJ10RF thermostat problem?
Vaillant ecotec 831 plus?
Remove boiler cover?
Worcester Bosch 532/i Combi Boiler?
Vaillant F22 fault?
How do I work my Storad storage heater?