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Mend Myson Midas B Heating Hot Water Thermostat

myson midas b dhw cut out?

hi i've got a myson midas b. problem is that once i light it the hot water starts to heat up (as i have it on instant) but if not used cuts out,extinguishing the pilot light then i can't relight it untill i've drained all the hot water off through the taps. what could this be as i've already changed the dhw thermostat.

rich
August 2009
MysonMyson Midas BHeating, Home Heating SystemsHeating Hot Water Thermostat
Clean the heat exchanger. The over-ride thermostat is cutting in. I would suggest that you clean the heat exchanger seriously. Also check the flue to ensure that ther are no extranoius products within.

townteck
August 2009
faulty dhw pump or blockage in the bypass. have a qualified engineer take a look, or better get it replaced as they are ancient.

Ian
August 2009

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Myson Midas B - Hot Water Cut Out Issue