Panasonic S-160PE1R5B Technical Data & Service Manual page 191

4. Mini VRF System Alarm Codes
9 Check the
Replace the HIC PC board and operate the unit. (Apply putty and
HIC PC
9-1
screws must not be loose) Does it operate normally?
boards
10 Check the
outdoor
10-1 Replace the control PC board and operate the unit.
unit main
PC board
• (Check content of 7) The test check of the HIC board is only a check on the output level, so the input stage may not be working.
• With the filter board broken, alarm P16 may not be triggered.
HIC board IPM Pass/Fail Tests
• Measure with an analog tester. (Set to the k ohm range.)
• Measure the board by itself. (Remove wires connected from other parts.)
• Measure using IPM terminals.
Conforming part resistance value (measure with an analog tester)
Tester terminals
+
-
Resistance value (ohm)
Tester terminals
-
+
Resistance value (ohm)
• Excepting the parts of "
value is "0 = short-circuit".
Tester terminals
+
-
Resistance value (ohm)
Tester terminals
-
+
Resistance value (ohm)
Excepting the parts of "
•
value is "0 = short-circuit".
P
U V
1 k to 5 k 1 k to 5 k 1 k to 5 k
P
U V
100 k to 100 k to 100 k to
100 k to ", it is acceptable if a small resistance value appears as a reference value unless the
HIC+
U V
1 k to 10 k 1 k to 10 k 1 k to 10 k
HIC+
U V
20 k to 20 k to 20 k to
20 k to ", it is acceptable if a small resistance value appears as a reference value unless the
W NU U
5 k to 10 k 100 k to
W U
1 k to 5 k
W HIC- U
5 k to 20 k 20 k to
W U
1 k to 10 k
5-27 5 - 49
Mini VRF SYSTEM
Trouble Diagnosis
Yes See what happens.
No 10-1
See what happens.
NU
V W
100 k to 100 k to 100 k to
NU
V W
1 k to 5 k 1 k to 5 k
HIC-
V W HIC+
20 k to 20 k to 20 k to
HIC-
V W
1 k to 10 k 1 k to 10 k
P
5