Mitsubishi Electric CMB-PW202V-J, Руководство по обслуживанию

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[
VIII
Troubleshooting ]
- 90 -
HWE09070 GB
1) TH11 through TH14 are connected to CN10 and TH15 and TH16 are connected to CN11 on the circuit board. Unplug the
corresponding connectors before checking each sensor.
2)
ΠPull out the sensor connector from the I/O board, Do not pull the sensor by holding the lead wire.
ΠMeasure the resistance with such as a tester.
ΠCompare the measured value with that of shown in the figure below. When the result is 10%, it is normal.
3) Check the self-diagnosis switch (Outdoor control board SW1).
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
ON
ON
ON
ON
1 2 3 4 5 6 7 8 9 10
ON
1 2 3 4 5 6 7 8 9 10
ON
Measurement data SW1 setting value Symbol
Liquid inlet temperature
Bypass outlet temperature
Bypass inlet temperature
Bypass inlet temperature
LEV1 outlet temperature TH13
HIC inlet temperature TH14
TH11
TH12
TH15
TH16
WCB