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Mend Honeywell ST6300A Home Heating Systems

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Mend Honeywell ST6300A Thermostat Heating Temperature

honeywellST6300A?

just moved to new property have set the timer, put thermostat to 24 degrees but heating is not working. The boiler makes the right noises - firing up and going off etc but no heat anywhere in the house. There is hot water. can anyone help?

natasha
May 2009
HoneywellHoneywell ST6300AHeating, Home Heating SystemsThermostat Heating Temperature

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