Question about AmcorAire UCHW-H12AF2 Split System Air Conditioner
F-1-No communicationbetween indoor and outdoor. Comms Error, check your wiring, remove external pumps. Split/Multi - check volts from terminal N to 3 = 0 - 65 Vdc, Multi V - 4 Vdc terminals 3 and 4
Posted on Jan 01, 2011
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Posted on Jan 02, 2017
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It's a communication problem between the central control unit and the electronic control box."F1" error code means "Primary control failure" and suggested correction is to replace the machine/motor control assembly. If you use a screw driver in front of the machine to open the top you will find a repair manual on the inside of the front panel.
There are three long screws behind the control unit "hood", in the back-top of the washer, facing straight up and down. After unscrewing,lift the hood up and forward to find the electronic control. First, you should check all the wires and make sure the connections are ok. If that still doesn't fix it, unplug all the wires, and take the electronic control out by unscrewing one 1/4" bolt. Put the new one in and re-wire everything (it shows what wires go where on the electronic control box
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