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Mend Ariston Microgenus 27 Combi Boiler Heating Temperature Control

Ariston Microgenus 27 remain ON all the time?

I have noticed the my combi boiler Ariston Microgenus 27 seem to remain ON at all times ?............ is this problem with clock, there is no room thermostat in the flat, or could it be the temperature control sensor?

Bhupinder Deol
June 2008
AristonAriston Microgenus 27Heating, Home Heating SystemsCombi Boiler Heating Temperature Control
its most likely to be your primary thermistor, it may think its in frost protection mode v common on that model

ross j
June 2008
sounds like a clock problem, or if you have zoned heating one of the zone valves microswitch maybe stuck in the on nc position

T
June 2008

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Ariston Microgenus 27 Always On - Help & Advice