Specifications

Troubleshooting by Indication on the Remote Controller Si34-704
228 Troubleshooting
Troubleshooting
(V3067)
(Orange) 1
Measuring points
1 - 6
2 - 6
3 - 6
4 - 6
Judgment criteria
40~50Ω
(Red) 2
(Yellow) 3
(Black) 4
5
COM[+] (Gray) 6
(V3067)
∗ Make measurement of resistance between the connector pins, and then make sure the resistance
falls in the range of 40 to 50Ω.
YES
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Return to normal?
Turn power supply off, and
turn power supply on again.
The connector
of outdoor unit PCB (A1P)
for electronic expansion
valve is connected.
Replace the connecting cable.
Replace outdoor unit PC board
(A1P).
YES
YES
NO
Ensure correct connection.
External factor other than
malfunction (for example, noise
etc.).
NO
The coil
resistance of electronic
expansion valve is
normal.
(Refer to ∗1)
NO
Check the electronic expansion valve corresponding to the
malfunction code “E9” in the monitor mode.
(Refer to P.194~195 for how to check.)
 When Check 4 shows as follows:
→
Electronic expansion valve for main use (Y1E)
 When Check 4 shows as follows:
→
Electronic expansion valve for subcooling (Y2E)
 Explanation of “ ”
Master unit
Slave unit 1
Slave unit 2
System