Error Code 29
FlexZone fan not running or not sending feedback signal
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 29
What This Means
Feedback signal line contact error; Motor wire separation; Defective FlexZone BLDC fan motor
What actually causes this:
Fan motor seized or wiring damaged inside the FlexZone evaporator cover.
First Thing to Check
Enter Forced Run mode and listen at the FlexZone compartment for fan operation.
Parts Involved
How to Fix
- 1
Check feedback signal between Main PCB CN20 pins 20 and 24
- 2
Fan running correctly produces a specific frequency pulse
- 3
Check drive voltage between CN40 #13 and #15 (DC 7–12V)
- 4
Verify FlexZone door switch is closed
Other Error Codes for RF29CB9900QKAA
Door showcase heater has an open or short circuit fault
Ice Bites ice maker temperature sensor reading invalid
Internal I/O expander chip on Main PCB has lost communication
Ambient air temperature sensor reading invalid
Freezer defrost sensor reading out of valid range
Freezer evaporator fan not running or not sending feedback signal
Flex Crisper compartment sensor out of valid range
Fridge compartment defrost sensor reading out of valid range