Mitsubishi PUHZ-SHW80YAA Service Manual page 25

Abnormal point and detection method
Check code
Pipe temperature
[
OCH651
1
2
:
3
4
5
: [
Cause
1–4
Temperature display of indoor liquid pipe
Indoor 1
1 2
Temperature display of indoor liquid pipe
Indoor 2
1 2
23
Judgment and action
Temperature display of indoor condenser/
evaporator pipe Indoor 1
3 4 5 6 1 2 3 4
ON
OFF
Temperature display of indoor condenser/
evaporator pipe Indoor 2
3 4 5 6 1 2 3 4
ON
OFF
A-Control Service Tool SW2 setting
5 6
ON
OFF
5 6
ON
OFF