![Airwell DLS 30 DCI Service Manual Download Page 133](http://html.mh-extra.com/html/airwell/dls-30-dci/dls-30-dci_service-manual_2880105133.webp)
13-17
TROUBLESHOOTING
SM DLSDCI 3-A.1 GB
13.5.9
Checking Compressor
1) Check Compressor connections - Repair if needed.
2) Check the resistance between the three phases – all three coil resistances should be the same:
UNIT
RESISTANCE
YBD036 - H11 / INV38
0.788 Ω
INV40-50 / YBD042-060 - H11
0.188 Ω
YAD036-042-060 - H13
0.44 Ω
YBD030
0.8 Ω
YBD018-024
0.9 Ω
3) Check the compressor current while operating to be the same on each wire - In case of abnormal
current (no current or excessive current), the problem could be of driver or compressor – if driver
is checked to be operating well (
13.5.5
), replace the compressor.
Replacing compressor- (
14.1.11
)
OFAN_UP
OFAN_DN
1
2
3
6
5
4
18.0
15
Checking Outdoor Fan Motor
M
1
RED
COMPESSOR
12.5.9 (4) Check motor current
3
6
15
1
OFAN_UP
OFAN_DN
3
4
5
6
3
2
1
12.5.9 (3a) High Voltage check
12.5.9 (3c) Feedbeck Voltage check
12.5.9 (3b) Control Voltage check
12.5.10 Checking Comperssor
310
OFAN_UP
OFAN_DN
4
3
1
2
3
6
5
4
1.0
U
V
W
3)
Check Compressor motor current