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Have I got got a faulty programmer?
Greenstar 25 combo boiler?
Worcester 30 Cadillac combi boiler won’t fire up and the EA?
Vaillant ecotec 831 plus?
Oil fired boiler thermostat?
Siemens RDJ10RF thermostat problem?
Fan tries to run every 15 seconds then stops immediately?
Advice?
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