Electra Delta 22 - Page 64

12-5
TROUBLESHOOTING
Revision Y05-02Service Manual - Delta DCI
DCR50 diagnostics:
No Problem 5 4 3 2 1
1
OCT is disconnected
0 0 0 0 1
2
OCT is shorted
0 0 0 1 0
3
CTT is disconnected
0 0 0 1 1
4
CTT is shorted
0 0 1 0 0
5
HST is disconnected (when enabled)
0 0 1 0 1
6
HST is shorted (when enabled)
0 0 1 1 0
7
OAT is disconnected (when enabled)
0 0 1 1 1
8
OAT is shorted (when enabled)
0 1 0 0 0
9
TSUC is disconnected (when enabled)
0 1 0 0 1
10
TSUC is shorted (when enabled)
0 1 0 1 0
11
IPM Fault
0 1 0 1 1
12
Bad EEPROM
0 1 1 0 0
13
DC under voltage
0 1 1 0 1
14
DC over voltage
0 1 1 1 0
15
AC under voltage
0 1 1 1 1
16
Indoor / Outdoor unit Communication mismatch
1 0 0 0 0
17
No Communication
1 0 0 0 1
18
Reserved
1 0 0 1 0
20
Heat sink Over Heating
1 0 1 0 0
21
Deicing
1 0 1 0 1
22
Compressor Over Heating
1 0 1 1 0
23
Compressor Over Current
1 0 1 1 1
24
No OFAN Feedback
1 1 0 0 0
25
OFAN Locked
1 1 0 0 1
26
Compressor Lock
1 1 0 1 0
27
Bad Communication
1 1 0 1 1