Daikin RXYQ96PYDN Service Manual page 542

SiUS34-801A_b
1 Faulty compressor (ground leakage)
1 Faulty fan motor (ground leakage)
1 Entry of conductive foreign particles
1. 1Abnormal voltage: e.g., over-voltage, electrical surge, or unbalanced voltagePower module
When using the analog type of multiple
tester, make measurement in resistance
measurement mode in the x1kΩ range.
2. Diode module checking
When using the analog type of multiple
tester, make measurement in resistance
measurement mode in the x1kΩ range.
Appendix
According to the tests made, it is you can determine if the malfunction is the result of a faulty
inverter.The following section describes spossible causes of the faulty inverter:
checking
Measuring
point
No. Criterion
+ -
1 P3 U
2 P3 V 2 to 15kΩ
3 P3 W
4 U P3
5 V P3
Not less
6 W P3
than
15kΩ
7 N3 U
(including)
8 N3 V
9 N3 W
10 U N3
11 V N3 2 to 15kΩ
12 W N3
Measuring
point
No. Criterion
+ -
1 P1 J1
2 P1 J2 2 to 15kΩ
3 P1 J3
4 J1 P1
5 J2 P1
Not less
6 J3 P1
than
15kΩ
7 N3 J1
(including)
8 N3 J2
9 N3 J3
10 J1 N3
11 J2 N3 2 to 15kΩ
12 J3 N3
When using the digital type of multiple
tester, make measurement in diode check
mode (
Remark No.
1
2
3
4
It may take
5
time to
6
determine the
resistance due
7
to capacitor
8
charge.
9
10
11
12
When using the digital type of multiple
tester, make measurement in diode check
mode (
Remark No.
1
2
3
4
It may take
5
time to
6
determine the
resistance due
7
to capacitor
8
charge.
9
10
11
12
Pressure Sensor
).
Measuring
point
Criterion
+ -
P3 U Not less It may take time to
than determine the voltage
P3 V
1.2V due to capacitor
P3 W (including) charge.
U P3
V P3
W P3
0.3 to 0.7V
N3 U
N3 V
N3 W
U N3 Not less It may take time to
than determine the voltage
V N3
1.2V due to capacitor
W N3 (including) charge.
).
Measuring
point
Criterion
+ -
P1 J1 Not less It may take time to
than determine the voltage
P1 J2
1.2V due to capacitor
P1 J3 (including) charge.
J1 P1
J2 P1
J3 P1
0.3 to 0.7V
N3 J1
N3 J2
N3 J3
J1 N3 Not less It may take time to
than determine the voltage
J2 N3
1.2V due to capacitor
J3 N3 (including) charge.
Remark
Remark
527