Troubleshooting by Indication on the Remote Controller ESIE09-08A
172 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
Normal
when coil
check (*) of the
moving part of the electronic
expansion valve is
checked.
(V3067)
YES
Caution
Be sure to turn off power switch before connecting or disconnecting connector,
otherwise parts may be damaged.
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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