Airwell SX 12 DCI, Руководство по обслуживанию

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TROUBLESHOOTING
SM YAZ318 1-A.1 GB
12-3
12.3 Diagnostics
12.3.1 Fault Code for Outdoor unit
The last fault occurred in the system will be stored in the EEPROM.
If no fault exists in the system, no fault code will be displayed during normal operation mode.
For single Split units only, when system enters diagnostics mode (through IDU communication),
the last fault code will be displayed even if the system has recover from that fault. The last fault will
be deleted from the EEPROM after the system has exit diagnostics mode (through IDU
communication). The current system operation mode (cool/ heat/ off) will not be changed when
system enters diagnostics.
The coding method is as follow:
STATUS LED is blinking 5 times in 5 seconds, and shut off for the next 5 seconds.
FAULT LED will blink during the same 5 seconds according to the following table
No Problem AO 5 4 3 2 1
1 OCT is shorted/disconnected
Yes 0 0 0 0 1
2 CTT is shorted/disconnected
Yes 0 0 0 1 0
3 HST is shorted/disconnected
Yes 0 0 0 1 1
4 OAT is shorted/disconnected
Yes 0 0 1 0 0
5 OMT is shorted/disconnected
Yes 0 0 1 0 1
6 RGT is shorted/disconnected
Yes 0 0 1 1 0
7 RLT is shorted/disconnected
Yes 0 0 1 1 1
8 Reserved
No 0 1 0 0 0
9 Reserved
No 0 1 0 0 1
10 Reserved
No 0 1 0 1 0
11 Compressor IPM Fault / IPM Driver Pin / Compressor
Current Sensor Fault
Yes 0 1 0 1 1
12 Bad EEPROM
No 0 1 1 0 0
13 DC under voltage
Yes 0 1 1 0 1
14 DC over voltage
Yes 0 1 1 1 0
15 AC under voltage/AC over Voltage/Zero Crossing
detection
Yes 0 1 1 1 1
16 Mismatch between IDU & ODU models
Yes 1 0 0 0 0
17 No Communication
Yes 1 0 0 0 1
18 System Over Power
Yes 1 0 0 1 0
19 PFC Current sensor
Yes 1 0 0 1 1
20 Heat sink Over Heating
No 1 0 1 0 0
21 Deicing
No 1 0 1 0 1
22 Compressor Over Heating
No 1 0 1 1 0
23 Compressor Over Current
No 1 0 1 1 1
24 No OFAN Feedback
Yes 1 1 0 0 0
25 OFAN IPM fault / OFAN IPM Driver Pin
Yes 1 1 0 0 1
26 Compressor Lock
Yes 1 1 0 1 0
27 Bad Communication
No 1 1 0 1 1
28
Missing ODU configuration
Yes 1 1 1 0 0
29 Undefined ODU Model Yes
1 1 1 0 1
30 Outdoor/Indoor Coil Overheating No
1 1 1 1 0
31 Operation conditions are exceeded Yes
1 1 1 1 1
One – ON, 0 – OFF
Only one code is shown. Order of priority is 1-24. Diagnostics is continuously ON as long power is
on.