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- 11 Dec 2008
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I have just had a (new) replacement powerhead(40003916-003) fitted to my Honeywell V4073A mid-position valve.
I notice that after the central heating turns off, the powerhead remains very hot. The package info mentions that the powerhead will remain warm, but mine remains HOT indefinitely with a faint electrical vibration. Should this powerhead remain hot despite the pipes around it having cooled? The powerhead only cools off after the hot water has been on.
I also have a second problem with the powerhead. Last night was very cold and the Frost Stat (Sunvic TLM 2257 Frost Thermostat) in the attic kicked in. Instead of the central heating switching on, the hot water was triggered. The powerhead's "last port of call" had been the hot water position, but shouldn't the powerhead have automatically switched to the central heating position when triggered by the Frost Stat?
Is my new replacement powerehead faulty?
Any advice will be much appreciated
I notice that after the central heating turns off, the powerhead remains very hot. The package info mentions that the powerhead will remain warm, but mine remains HOT indefinitely with a faint electrical vibration. Should this powerhead remain hot despite the pipes around it having cooled? The powerhead only cools off after the hot water has been on.
I also have a second problem with the powerhead. Last night was very cold and the Frost Stat (Sunvic TLM 2257 Frost Thermostat) in the attic kicked in. Instead of the central heating switching on, the hot water was triggered. The powerhead's "last port of call" had been the hot water position, but shouldn't the powerhead have automatically switched to the central heating position when triggered by the Frost Stat?
Is my new replacement powerehead faulty?
Any advice will be much appreciated