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Mend Potterton 50e Boiler Central Heating Thermostat

how to fix my boiler?

Have Potterton Profile boiler model 50e. Central heating will only work when water requirement is programmed to 'all day' supply. If boiler keeps water temp then heating does not work, until we increase water temp on numbered dial on boiler front. Room thermostat calls for heat by boiler does not fire up.

Thanks

neil
December 2010
PottertonPotterton 50eHeating, Home Heating SystemsBoiler Central Heating Thermostat
There is a wiring fault, possibly missing a wire to HW off in the back of the programmer.


http://www.tlc-direct.co.uk/Technical/DataSheets/Horstmann/Pics.pdf

Carefree
December 2010

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