LG CT09F Service Manual page 146

6.7 Troubleshooting Outdoor Error
CH 67 (Fan Lock)
Items
Purpose
Condition for Generation The fan is not operated at the rpm exceeding the standard.
CH67 Cause of Generation
Classification
Fan
PCB Assembly
Trouble Checking Flow
Items for checking
Outdoor Fan
PCBA
Cautions
1) Both the fan and PCB may be damaged when the fan connector is mounted or removed in the state that
the power is supplied.
2) Both the fan and PCB may be damaged when the fan connector is inserted in reverse direction..
3) If fan motor fault is identified, PCB should be also replaced in consideration of possible damage of PCB.
Detection of no proper operation of the fan.
Fan motor damage and fan connection fault
Damage of fan motor driving circuit
Outdoor fan damage
Checking Single unit of
Fan IPM
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Part 4 Trouble Shooting
Contents
Causes in Detail
Sub-items for checking
Connection state
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