Troubleshooting
Samsung Electronics
121
4-4-73 Over-Voltage Error of an Outdoor Fan Motor
1. How to check
1) Check if outdoor fan motor rotates or is locked
2) If it is not locked, the above error occurs due to overload and signals by abnormal operation, and it indicates the overload status.
Thus, it is not breakdown.
3) Need to check if there is a problem with fan load status
4-4-74 Counter-Rotation Error of an Outdoor Fan Motor
1. How to diagnose
1) Check if the start instruction of outdoor unit's fan is counter-clockwise
2. How to check
1) It is a signal to protect a motor by checking the operational condition of the outdoor unit's fan motor without power so as not to
operate it in counter-clockwise condition.
2) Check if there is wind strong enough to force a fan to rotate counter-clockwise where the outdoor unit is installed.
Outdoor unit display
Indoor unit display
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Criteria
• When the current of an operating outdoor fan motor is more then 7A for 1 minute
Cause of problem
• Outdoor fan motor lock or defect
• Occurs by abrupt start or overload
Outdoor unit display
Indoor unit display
-
Criteria
• When the rotational direction of an outdoor fan motor is counter-clockwise before operating
Cause of problem
• Due to wind that can run the fan counter-wise
