Daikin B-Series Service Manual page 138

Si04-306E
Troubleshooting
Check No.04
Refer to P.142
Check No.06
Refer to P.144
Check No.07
Refer to P.145
Check No.09
Refer to P.146
Service Diagnosis
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Check the installation space.
Check No. 07
Check the installation
condition.
Normal
Check No. 09
Check the outdoor fan.
Normal
Check No. 04
Check the electronic expansion valve.
Judgment
Normal
Check No. 06
Check the heat exchanger
thermistor.
Judgment
Normal
Abnormal
Abnormal
Abnormal
Abnormal
Troubleshooting
Change the air outlet grille
position.
Change the installation
location.
Clean the heat exchanger.
Replace the fan motor.
Repair the connector or fan
motor lead wires.
Replace the electronic
expansion valve or coil.
Replace the PCB.
Replace the heat exchanger
thermistor.
Replace PCB.
(R7142)
127