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Mend Honeywell 3-way valve Central Heating Valve Actuator Programmer

Central Heating not coming on ?

Only get the central heating to come on when running the hot water,it's an old system with pre- lagged cylinder in a cupboard and header tank in the loft. A Horstmann 525 programmer as well. I have been informed it is probably the Honeywell 3-way valve. Do you replace the whole valve or just the actuator attached to it?

Tony
November 2010
HoneywellHoneywell 3-way valveHeating, Home Heating SystemsCentral Heating Valve Actuator Programmer

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