zone control codes


Old 12-28-00, 09:11 PM
david ahluwalia
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I have a Carrier heat pump w/a Parker Electronics Home Zone control.It has a HF 31 code.A small book in the thermostast cover saysb its a pressure sensor out of range.I though it was a filter dirty I cleaned it,after cutting the power.But after 24 hr. the code is still there.Is anybody willing to shed any light on this? Does anybody know were I can get a manual the will cover the zone electronics in detail?
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Old 12-29-00, 03:24 PM
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Try Parker.

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