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We have 40 questions about mending '31 he optimax up c' in category Heating, Home Heating Systems which have been answered
high pressure when heatings on?
optima 701 pressure rises when heatings on drops when off?
how do i depressurise a ferrolli optima boiler?
Optima failing to fire up?
how can i fix boiler?
OPTIMA 701 Ferrori heating problem?
Big bang on ignition?
how can i fix my ferolli optima 701?
Trianco Optima Boiler Programmer Fault (QA73)?