Daikin FVXG25K2V1B, Руководство по обслуживанию

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Troubleshooting SiBE061121_A
92 Service Diagnosis
4.20.2 RXG50K2V1B
Error Code
H0
Method of Error
Detection
„
The system checks the power supply voltage and the DC voltage before the compressor
starts.
„
The system checks the compressor current right after the compressor starts.
Error Decision
Conditions
„
The power supply voltage and the DC voltage is obviously low or high.
„
The compressor current does not run when the compressor starts.
Supposed
Causes
„
Disconnection of reactor
„
Disconnection of compressor harness
„
Defective outdoor unit PCB
„
Defective compressor
Troubleshooting
Connect the reactor
properly.
(R15891)
NO
YES
Connect the compressor
properly.
NO
YES
Replace the reactor.
NO
YES
Replace the compressor or
the compressor relay
harness.
Restart the operation again
and if the error occurs
again, replace the outdoor
unit PCB.
NO
YES
Disconnect the reactor from the outdoor
unit PCB and measure the resistance
value between reactor terminals with
tester.
Disconnect the compressor relay harness
from the outdoor unit PCB and measure
the resistance value between the each 3
terminals of the compressor with tester.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
10
Ω
or less
between each terminal?
Check the connection of the
compressor.
Check the reactor.
Check the compressor.
Turn off the power.
Check the connection of the
reactor.
Connection OK?
Connection OK?
10
Ω
or less?