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