ESIE05-04 Error Codes: System Malfunctions
Part 3 – Troubleshooting 3–51
Troubleshooting
Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Connect the remote controller
correctly.
Check setting "No. of Connected
Twin System Indoor Units" of
indoor unit.
Replace the transformer.
Wiring could be incorrect,
recheck.
Connect correctly.
Indoor unit PCB replacement.
Operates normally.
Connect correctly.
Connect correctly.
Set correctly.
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
Isthere
220-240VAC
betweenNo.1andNo.3of
X2M(indoorUnit)?
Isthepower
supplyPCBcorrectly
connected?
Isthe
indoor-indoorand
indoor-outdoorjumper
correctly
connected?
Isthe
indoor-indoorand
indoor-outdoorjumper
correctly
connected?
Isthe
outdoorunitusedfor
Twinsystem?
Isthe
remotecontrol
connectedtomorethan
oneindoor
unit?
Arethe
microcomputernormal
monitors(HAP)ofall
indoorunitPCB
flashing?
Arethe
transmissionnormal
montiors(HBP)ofall
indoorunitPCB
flashing?
Operatingnormally?
Turnthepoweroffonce,then
backon,andrestartoperation.
Isthe
settingof
Pair/Twin/Tripleset
correctly?
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