Troubleshooting for Outdoor Unit SiUS091601EA
179 Part 6 Service Diagnosis
Check No.15 Refer to P.186
Check No.17 Refer to P.190
Check No.18 Refer to P.190
Check No.22 Refer to P.194
(R24912)
NO
YES
NO
YES
NO
YES
YES
NO
Check No. 22
Turn off the power, and reconnect
the harnesses. Turn on the power
again and start operation.
Check the power supply voltage.
Check the power module.
Correct the power supply.
Replace the compressor.
Correct the power supply
or replace the outdoor unit
PCB (main PCB).
Replace the outdoor unit
PCB (main PCB).
Any LED off?
Normal?
Short circuit
or wire breakage
between compressor's coil
phases?
Check the discharge
pressure.
Go to Check No. 18.
A Continued from the
previous page
Is the voltage
fluctuation within
±10% from the rated
value?
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