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We have 35 questions about mending 'optimax 25c' in category Heating, Home Heating Systems
No Hot Water OPTIMA 701 gas combi boiler?
Why does the Hawk II Optima keep turning on central heating without request?
optima 701 pressure rises when heatings on drops when off?
Optima 701 Diverter?
boiler turns off and on?
high pressure when heatings on?
Optima failing to fire up?
Optima boiler?
Optima 701 Diverter Valve?