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Mend Honeywell RSF84 Valve Loosing Pressure

Safety Release Valve, RSF84?

My central heating keeps loosing pressure. The drain off pipe on the outside drips when the heating is on.
Will the safety release valve need cleaning or replacing.
Do i need to drain off all the system, and how easy is it to change.
Tony

Tony
February 2010
HoneywellHoneywell RSF84Heating, Home Heating SystemsValve Loosing Pressure
nope if its just when using heating you have expansion vessel thats flat or f*cked.

z
February 2010

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Honeywell RSF84 Valve - Pressure Loss & Repair