Panasonic S-200PE1E8 - Details of Alarm Messages

5-8
5
No
No
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
No
No
No
No
No
5-4. Details of Alarm Messages
Alarm Details
(1-1) [Alarm “P29”]
Start-up failure of the compressor (will not start up)
Related parts
• HIC PCB (Model: [U-200PE1E8, U-250PE1E8] HIC-C906VH8)
• Outdoor unit control PCB (Model: [U-200PE1E8, U-250PE1E8] CR-C906VH8P)
• Filter PCB (Model: [U-200PE1E8, U-250PE1E8] FIL-C906VH8)
Start of defect diagnosis
Is the power voltage correct?
Improve the power voltage line.
Check the following:
Check to ascertain that the power voltage is within the permissible range of 198 to 264V
for indoor unit or 342 to 456V for outdoor unit regardless of whether the compressor is
operating or not.
* Pay special attention to whether the voltage drops after compressor operations while
measuring.
Repair the wiring connectors.
Replace the outdoor
unit control PCB.
Are the wiring connector
connections OK?
Are the U/V/W
connections on the HIC
PCB and compressor
terminal OK?
Are the capacity setting
for the outdoor unit of
the outdoor unit
Are the resistance
values permissible at all
areas in HIC PCB?
Is the insulation on the
compression OK?
Has the HIC PCB been
replaced?
Has the outdoor unit
control PCB been
replaced?
Replace the compressor
Has the fi lter PCB
been replaced?
Repair the wiring connectors.
Repair the HIC PCB.
Repair the compressor.
Repair the HIC PCB.
Replace the fi lter PCB.
Correct the capacity setting for the outdoor unit.
HIC PCB side
U (CN202) pink
V (CN203) white
W (CN204) blue
As the compressors used with the U-200PE1E8 and U-250PE1E8
are different, there is a possibility that a P29 error will be triggered
if the unit's capacity settings are incorrect.
No (Abnormal resistance value)
(No problem with the resistance value)
• Inspection Method: Remove the HIC PCB and measure the resistance at all areas.
See attached documentation.
Replace the HIC PCB if the readings are below permissible values.
(No problem with the insulation)
No (Defective insulation)
• Potential cause: PCB Insulation failure caused by the
compressor lock.
• Verifi cation Method
Remove the wires from the connectors on the top of the
compressor. Measure the insulation resistance of the U, V and
W phases and confi rm that they are 1M or more.
Potential problems are most likely in accordance with the
following sequence when it is determined that the PCB is
trouble with an alarm P29.
1. HIC PCB
2. Outdoor unit control PCB
3. Filter PCB
Replace the relevant PCB in accordance with the diagnosis
fl o w .
Check the following wiring
U-200PE1E8 U-250PE1E8
HIC PCB
Outdoor unit con-
trol PCB
Filter PCB HIC PCB
Outdoor unit con-
trol PCB
Filter PCB
HIC+ CN200 red CN317 red CN200 red +
HIC- CN201 white CN318 white CN201 white -
VDCIN+ CN220 red CN321 red
VDCIN- CN221 red CN322 white
HIC1(10P white) CN100 white CN080 white CN100 white CN080 white
HIC2 (yellow) CN101 yellow 4P CN81 yellow 4P CN101 yellow 3P CN081 yellow 4P
HIC3 (8P white) CN102 white CN103 white CN102 white CN103 white
VDC2 (2P) CN240 yellow CN102 white CN240 yellow CN102 yellow
SM830194-00.indb8SM830194-00.indb8 2011/11/1523:10:552011/11/1523:10:55