Troubleshooting
TS04-ODU: The outdoor fan speed is operating outside of normal range diagnosis and
solution)
Description: When outdoor fan speed keeps too low or too high for a certain time, the LED displays the failure code
and the AC turns off.
Recommended parts to prepare:
• Connection wires
• Fan assembly
• Fan motor
• Outdoor main PCB
Troubleshooting and repair:
YES
Power off, then restart the unit after 2 minutes.
Is it within normal parameters?
Replace the fan motor
Does a problem remain?
The unit is operating normallyNO
Shut off the power supply, Rotate
the fan by hand.
YES
Does it turn easily?
Find the cause of the problem and resolve itNO
Check the wiring of fan motor.
YES
Is it improperly wired?
Ensure proper connections
Measure the voltage for
the fan motor from the PCB.
YES
Replace the outdoor main PCBNO
Note: For certain models, outdoor PCB could not be removed separately. In this case, the outdoor electric
control box should be replaced as a whole.
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