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