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Thread: Daikin U4 error code
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19-01-2008, 03:02 PM #5
Re: Daikin U4 error code
is it possible the interconnects were mixed up?
U4 is an error in communication between indoor and outdoor units.
daikins have the "1,2,3" wiring, with off memory 1 is a premanent active, 2 being neutral, and 3 being a signal wire. if 1 and 3 were mixed up, would that possibly give a permanent active to the signal wire and possibly cause the condensor to continually run?
i dont know much about the internal workings of these units, just throwing something up in the air, some of the other guys on the forum will have a better idea.
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