Mitsubishi Electric PURY-P200YLM-A(1) Service Handbook page 340

[8-9 Troubleshooting Problems with Major Components on BC Controller ]
1) For the connectors on the board, TH11 and TH12 are connected to CN10, and TH15 and TH16 are connected to CN11. Dis-
connect the connector in trouble, and check the sensor of each number.
2)
Pull out the sensor connector from the I/O board, Do not pull the sensor by holding the lead wire.
Measure the resistance with such as a tester.
Compare the measured value with that of shown in the figure below. When the result is
3) Check the self-diagnosis switch (Outdoor control board SW1).
For how to read the SW settings, refer to the following page(s). [9-1-1 How to Read the LED](page 385)
HWE1314A
Measurement data
Liquid inlet temperature
G1, GA1,
Bypass outlet temperature
HA1
(Standard / main)
Bypass inlet temperature
Bypass inlet temperature
Bypass outlet temperature
GB1, HB1
(Sub 1)
Bypass inlet temperature
Bypass outlet temperature
GB1, HB1
(Sub 2)
Bypass inlet temperature
Symbol SW4 setting value
TH11
TH12
TH15
TH16
TH12
TH15
TH12
TH15
- 329 -
10%, it is normal.
GB