Troubleshooting by Indication on the Remote Controller SiBE31-801_C235 TroubleshootingTroubleshootingCautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.YESNONONOYESYESShut the power supply off afterconnection and then restart.Replace the electronic expansionvalve coil.Replace the relay cables.When restarting the operation aftershutting the power supply off doesnot work, replace the indoor unitPCB.Electronicexpansion valve isconnected to X7A ofindoor unit PCB.Check (*1) ofelectronicexpansion valvecoil indicatesnormal.Relay cables shortcircuit ordisconnected.*1: How to check the electronic expansion valve coilRemove the connector for electronic expansion valve (X7A) from PCB. Measure the resistance valuebetween pins and check the continuity to judge the condition.White (1)Red (5)Orange (3)φ1φ3 Mφ2 φ4Yellow(2) Brown(6) Blue(4)1) White2) Yellow3) Orange4) Blue5) Red6) BrownThe normal products will show the following conditions:(1) No continuity between (1) and (2)(2) Resistance value between (1) and (3) is approx. 300 Ω(3) Resistance value between (1) and (5) is approx. 150 Ω(4) Resistance value between (2) and (4) is approx. 300 Ω(5) Resistance value between (2) and (6) is approx. 150 Ω
