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We have 146 questions about mending 'optima' in category Heating, Home Heating Systems
Have I got got a faulty programmer?
Advice?
Thorn Harcal 460?
Fan tries to run every 15 seconds then stops immediately?
Valor petrus 850 electric fire?
Vaillant ecotec 831 plus?
How can i mend my baxi combi 105a?
Canon caress 2000 gas fire?
Greenstar Highflow 440?
British Gas 532/i Gas Combi Boiler?
Power but not activating Baxi 105e boiler?
Worcester boiler dripping water?
Siemens RDJ10RF thermostat problem?
Myson Touch?
Boiler problem?
Replacement of elements?
F40 fault?
BMU error code?
Ideal Isar H30?
Boiler cycle?
Reset my worcester dt10rf programmer?
Firebird super Q 50/82?
Greenstar 25 combo boiler?
Britony Combi Se boiler 40 & 80 lights flashing?
How do I work my Storad storage heater?
Morco gb 24?
Worcester Bosch 532/i Combi Boiler?
Remove boiler cover?
Remeha Avanta plus?
Vaillant F22 fault?