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We have 12 questions about mending 'optimax combi boiler' in category Heating, Home Heating Systems which have been answered
how can i fix boiler?
optima 701 pressure rises when heatings on drops when off?
Trianco Optima Boiler Programmer Fault (QA73)?
high pressure when heatings on?
OPTIMA 701 Ferrori heating problem?
Optima failing to fire up?
how do i depressurise a ferrolli optima boiler?
how can i fix my ferolli optima 701?
Big bang on ignition?