Airwell PNXA 12 DCI, Руководство по обслуживанию

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TROUBLESHOOTING
13-4
SM PNXADCI 1-A.1 GB
No Problem 5 4 3 2 1
28 Model A
29 Model B
30 Model C
31 Model D
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
9
Using EEPROM
data
No problem. System is using
EEPRRRROM parameters
13.1.3.3 Outdoor unit Diagnostics
For GC 9/12 DCI
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