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