Airwell LEX/HAD 50DCI, Руководство по обслуживанию

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13-3
TROUBLESHOOTING
SM YBD018 1-A.1 GB
In diagnostics mode, system fault / status will be indicated by blinking of Filter & Timer LEDs.
The coding method will be as follows:
Filter LED will blink 5 times in 5 seconds, and then will be shut off for the next 5 seconds.
Timer LED will blink during the same 5 seconds according to the following Indoor / Outdoor
unit tables:
Note: 0 – OFF, 1-ON
13.1.3.1 Indoor unit Diagnostics
No Problem 5 4 3 2 1
1 RT-1 is disconnected 0 0 0 0 1
2 RT-1 is shorted 0 0 0 1 0
3 RT-2 is disconnected 0 0 0 1 1
4 RT-2 is shorted 0 0 1 0 0
5 Reserved 0 0 1 0 1
7 Communication mismatch 0 0 1 1 1
8 No Communication 0 1 0 0 0
9 No Encoder 0 1 0 0 1
10 Reserved 0 1 0 1 0
11 Outdoor Unit Fault 0 1 0 1 1
… Reserved
17 Defrost protection 1 0 0 0 1
18 Deicing Protection 1 0 0 1 0
19 Outdoor Unit Protection 1 0 0 1 1
20 Indoor Coil HP Protection 1 0 1 0 0
21 Reserved 1 0 1 0 1
22 Reserved
24 EEPROM Not Updated 1 1 0 0 0
25 Bad EEPROM 1 1 0 0 1
26 Bad Communication 1 1 0 1 0
27 Using EEPROM data 1 1 0 1 1
28 Model A 1 1 1 0 0
29 Model B 1 1 1 0 1
30 Model C 1 1 1 1 0
31 Model D 1 1 1 1 1
13.1.3.2 Indoor unit diagnosis and corrective actions
No. Fault Probable Cause Corrective Action
1
Sensor failures of all
types Check sensor connections or
replace sensor
2
Communication
mismatch
Indoor and Outdoor
controllers are with different
versions
Replace Indoor controller
3 No Communication
Communication or grounding
wiring is not good. Check Indoor to Outdoor wiring
and grounding
4 No Encoder Indoor electronics or motor
Check motor wiring, if ok,
replace motor, if still not ok,
replace Indoor controller.
5 Outdoor Unit Fault Outdoor controller problem Switch to Outdoor diagnostics.
6
EEPROM Not
Updated
System is using ROM
parameters and not EEPROM
parameters No action, unless special
parameters are required for unit
operation.
7 Bad EEPROM
No action, unless special
parameters are required for unit
operation.
8 Bad Communication
Communication quality is low
reliability Check Indoor to Outdoor wiring
and grounding