Honeywell 3 port mid position valve - problems with...
"Peter" wrote in message
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Should be very reliable though motor life varies dramatically with
temperature. Do you have unusually high ambient/flow temperatures or high
spec supply voltage?
Well it was installed in a loft, on the east aspect and the problems this
time started after a couple of (relatively) deep overnight frosts.... Hummm
!
Otherwise I have seen the rubber 'ball' which directs the flow to have
swollen for some reason, something in the system water assumedly. As you
describe a complete blocking of the flow which normally could not happen
with a three port valve, this could be the case. Perhaps you could do a
complete drain and flush next time, or maybe Honeywell would be interested
in examining your valve.
One more question, would one expect a symphonic flow if there was a complete
pump failure but the ports on the above valve had opened IYSWIM ?
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