Mid-position power head and valve.
A genuine Honeywell power head and associated control valve, purchased as a replacement for an existing unit. The previous Honeywell powerhead had failed, after about 25 years of service, because the central heating system had been set to heating for about a year and 6 months while the hot water relied on the immersion heater. I now understand that even when the system is not running during the summer the power head motor remains energised and hot, and eventually the return spring would not pull the motor and valve back to the hot water position. Only the power head has been replaced, the valve is a standby spare. Hopefully this genuine Honeywell replacement unit should last at least as long as the original, I have learnt now always to run the hot water system as the last thing each day after running the heating, as this leaves the power head synchronous motor not energised and not running hot for extended periods.Read full review
Verified purchase: Yes | Condition: New