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MicroGenus27 No Hot Water

I Have an Ariston MicroGenus 27. Central heating works fine but Often there is no hot water. when there is hot water the boiler will only fire up & heat to 40 on the front panel display. Other times there is no hot water at all. Engineer vivited but the boiler started to work fine just before he arrived & he was unable to provide any other assistance in this matter. Any ideas on what the problem could be?

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Check HW and CH temperature probes check secondary heat exchanger for blockage check water pressure switch

Posted on Aug 17, 2009

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