Mitsubishi Electric CAHV-P500YB-HPB Service Handbook page 159

[ IX Troubleshooting ]
4. Thermistor replacement instructions (liquid pipe/gas pipe/water temperature detection)
1) Remove the service panel.
2) Remove the lead wire of the piping sensor from the control board.
3) Pull out the temperature sensor from the tenperature sensor housing, and replace the temperature
sensor with the new one.
4) Connect the lead wire of the temperature sensor securely
on the control board.
Special care must be taken when replacing heavy parts.
TH4, TH8
TH2, TH6
HWE15070
No.1 CIRCUIT
TH1
TH2
TH3
TH4
TH9
TH16
TH3,TH7
TH11
TH11, TH13
TH1, TH5
No.2 CIRCUIT
TH5
TH6
TH7
TH8
-
TH12
TH13
- 152 -
TH9
TH16, TH12
GB