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We have 218 questions about mending 'hot switch light' in category Heating, Home Heating Systems which have been answered
Greenstar 24Ri boiler, fast flashing - can I reset?
Remove boiler cover?
Vaillant ecotec 831 plus?
Remove cover off gas boiler?
How to fix my fireplace?
Oil fired boiler thermostat?
Worcester 30 Cadillac combi boiler won’t fire up and the EA?
Siemens RDJ10RF thermostat problem?
Worcester boiler dripping water?