OCH791 _26
1102 (U2): Compressor temperature trouble
Chart 2 of 2
Diagnosis of failure
Is the resistance detected?
*For the voltage, refer to "How to check the components".
Continued from the previous page.
Check the voltage(*) and appearance of the
outdoor multi controller circuit board.
Disconnect the thermistor wiring to check the
resistance.
Disconnect the indoor LEV wiring and check the
resistance.
Replace the outdoor multi controller circuit
board.
Replace the thermistor.
Replace the indoor LEV.
Replace the indoor controller board.
Is the resistance detected?
Is the voltage normal value?
Is it free from any trace of overheating
or burning?
No
No
No
Yes
Yes
Yes