Troubleshooting by Indication on the Remote Controller Mini UM S/M126 Troubleshooting4.19 “E9” Outdoor Unit: Malfunction of Moving Part ofElectronic Expansion ValveRemoteControllerDisplayE9ApplicableModelsAII outdoor unit modelsMethod ofMalfunctionDetectionCheck disconnection of connectorCheck continuity of expansion valve coilMalfunctionDecisionConditionsError is generated under no common power supply when the power is on.SupposedCauses Defect of moving part of electronic expansion valve Defect of outdoor unit PC board (A1P)Troubleshooting(V3067)YESCautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.Return to normal?Turn power supply off, andturn power supply on again.Electronicexpansion valve isconnected to X26A andX28A of outdoor unitPC board(A1P).Normalwhen coilcheck (∗1) of the movingpart of the electronicexpansion valve ischecked.Replace outdoor unit PC boardA1P.NONONOReplace the moving part of theelectronic expansion valve.External factor other thanmalfunction (for example, noiseetc.).After connecting, turn the poweroff and then back on again.YESYES
