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We have 20 questions about mending 'optimax he plus 31c' in category Heating, Home Heating Systems
boiler turns off and on?
Optima boiler?
Why does the Hawk II Optima keep turning on central heating without request?
No Hot Water OPTIMA 701 gas combi boiler?
high pressure when heatings on?
Optima 701 Diverter?
optima 701 pressure rises when heatings on drops when off?
Optima failing to fire up?
Optima 701 Diverter Valve?