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We have 32 questions about mending 'heat exchanger 24' in category Heating, Home Heating Systems which have been answered
Fan tries to run every 15 seconds then stops immediately?
Vaillant ecotec 831 plus?
Boiler cycle?
Remove boiler cover?
How do I work my Storad storage heater?
Worcester boiler dripping water?
Siemens RDJ10RF thermostat problem?
Worcester Bosch 532/i Combi Boiler?
Vaillant F22 fault?