SiBE341027
Troubleshooting by Remote Controller
Service Diagnosis
117
Troubleshooting
Note:
*1. Make measurement of resistance between the connector pins, and then make sure the
resistance falls in the range of 40 to 50W.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Turn OFF the power supply once
and then turn it ON again.
Return to normal?
YES
External factor other than error
(for example, noise etc.).
Check the electronic expansion valve corresponding to the error code “
E9
” in the monitor mode.
{
When confirmation of error 3 and 4 shows as follows:
→
Electronic expansion valve for main (Y1E)
{
When confirmation of error 3 and 4 shows as follows:
→
Electronic expansion valve for refrigerant charge (Y2E)
{
When confirmation of error 3 and 4 shows as follows:
→
Electronic expansion valve for subcooling (Y3E)
{
Explanation of “ ”
Master unit
Slave unit 2
System
The connector of
outdoor unit PCB
(A1P) for electronic
expansion valve is
connected.
The coil resistance of
electronic expansion
valve is normal.
(*1)
NO
Ensure the correct connection.
NO
NO
YES
YES
Replace the electronic
expansion valve coil.
Slave unit 1
Replace the outdoor unit PCB
(A1P).
(Orange) 1
(Red) 2
(Yellow) 3
(Black) 4
5
COM[+] (Gray) 6
Measuring points
1 - 6
2 - 6
3 - 6
4 - 6
Judgement criteria
40~50
Ω
