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We have 34 questions about mending 'optimax 31c boiler' 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?
Optima failing to fire up?
Big bang on ignition?
how can i fix my ferolli optima 701?
how can i fix boiler?
OPTIMA 701 Ferrori heating problem?
Trianco Optima Boiler Programmer Fault (QA73)?
how do i depressurise a ferrolli optima boiler?