Troubleshooting by Indication on the Remote Controller ESIE09-08B
162 Troubleshooting
3.22 “E9 ” Indoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (K2E) R-134a circuit
Remote Control
Display
E9
Subcode 17
Applicable
Models
All indoor units
Expansion valve on R-134a
Method of
Malfunction
Detection
Check disconnection of connector
Check continuity of expansion valve coil
Malfunction
Decision
Conditions
Error is generated under no common power supply when the power is on.
Supposed
Causes
Defect of moving part of electronic expansion valve
Defect of indoor unit PC board (A4P)
Defect of connecting cable
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect
connector, or parts damage may be occured.
Normal
when coil
check (*) of the
moving part of the electronic
expansion valve is
checked.
(V3067)
YES
Return to normal?
Turn power supply off, and
turn power supply on again.
Electronic
expansion valve is
connected to X21A of unit
PC board (A4P).
The
connecting cable is
short-circuited or
disconnected.
Replace the connecting cable.
Replace indoor unit PC board
(A4P).
NO
NO
NO
NO
Replace the moving part of the
electronic expansion valve.
External factor other than
malfunction (for example, noise
etc.).
After connecting, turn the power
off and then back on again.
YES
YES
YES
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