Electra WNG 50 DCI Service Manual page 92

TROUBLESHOOTING
14.3.3 Fault Code for Indoor unit
Pressing Mode button for long will activate diagnostic mode by the acknowledgment of 3
short beeps and lighting of COOL and HEAT LED's.
When Indoor diagnostics is displayed, all four LED's (STBY, Operate, Filter, TMR) are on.
Entering diagnostics in STBY mode allows only viewing of status (fault-display).
In diagnostic mode, system problems / information will be indicated by blinking of Heat &
Cool LED's.
The coding method will be as follows:
Heat led will blink 5 times in 5 seconds, and then will be shut off for the next 5 seconds.
Cool Led will blink during the same 5 seconds according to the following table:
No
1 RT-1 is disconnected
2 RT-1 is shorted
3 RT-2 is disconnected
4 RT-2 is shorted
... Reserved
7 Communication mismatch
8 No Communication
9 No Encoder
10 Reserved
11 Outdoor Unit Fault
... Reserved
17 Defrost protection
18 Deicing Protection
19 Outdoor Unit Protection
20 Indoor Coil HP Protection
21 Overflow Protection
... Reserved
24 EEPROM Not Updated
25 Bad EEPROM
26 Bad Communication
27 Using EEPROM data
28 Model A
29 Model B
30 Model C
31 Model D
1 - ON, 0 - OFF
Only one code is shown. Order of priority is lower to the higher number. Diagnostics is
continuously ON as long power is on.
14-6
Fault Name
Revision Y05-02
CONTENT
5 4 3 2
0 0 0 0
0 0 0 1
0 0 0
1
0 0 0
1
0 0 0
1
0 0
1 1
0 0 0
1
0 0 0
1
0 1 0 1
0 1 0 1
0 0 0
1
0 0
1 1
0 0
1 1
0 0
1 1
0 0
1 1
0 0
1 1
0 0
1 1
0
1 1 1
0
1 1 1
0
1 1 1
0
1 1 1
1 1 1 1
1 1 1 1
Service Manual - WNG 50_60_80 DCI
1
1
0
1
0
1
1
0
1
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1