Haier AW09ES2VHB Service Manual
Also see for 1U09AP2VHA: Installation manual
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Contents |
ERROR CODES & PROBLEM SOLVINGPAGE 34ENGLISHThe Communication Fault Between IPM and Outdoor PCBOutdoor DisplayLED1 Flash 4 TimesSpare Parts:Power moduleOutdoor PCB1) Check the plugs of MODULE COM and MODULE POWER on theoutdoor PCB and IPM modules for secure connections2) Check the P & N wires between the outdoor PCB and IPM modulesfor secure connectionsAre the connections secure?Replace the power module1. Measure for an approx. voltageof 5VDC between pins 1 and 2 ofthe Module Power connector2. Measure for an approx. voltageof 15VDC between pins 2 and 3 ofthe Module Power connectorRe-seat the connectionsReplace the outdoor PCBYesYesNoNo |
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