Inverter Compressor Overcurrent - Daikin RXSQ24TAVJU Service Manual

SiUS331708EA

4.43 Inverter Compressor Overcurrent

L8
Error Code
Applicable
All outdoor units
Models
Method of Error Error is detected by current flowing in the power transistor.
Detection
Error Decision Overload in the compressor is detected.
Conditions
Supposed
Causes
Troubleshooting
CHECK 4
Service Diagnosis
Compressor overload
Broken wire inside compressor
Defective PCB
Disconnection of compressor
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Check if the
compressor lead wires are
normal.
Insulation
resistance of the
compressor is 100 kΩ
or below.
Compressor coils are
disconnected.
CHECK 4
Check if the power transistor
is normal.
Connect the compressor lead
wires then restart the operation.
Error code L8 is
displayed again.
Refer to page 260.
NO
YES
YES
NO
YES
NO
NO
YES
NO
YES
Troubleshooting by Error Code
Replace the compressor
lead wires.
Replace the inverter
compressor.
Replace the inverter
compressor.
Replace the
outdoor main PCB
(A1P).
Continue the operation.
Inspection of the
compressor.
216