Error Code 74C
The AutoFill pitcher is overflowing with water
Moderate
Address soon - your appliance may not work properly
Also displayed as: 74C
What This Means
AutoFill pitcher filled beyond maximum level; Overflow sensor disconnected or defective; Water supply valve stuck open; AutoFill water line leak; Defective Main PBA
What actually causes this:
The water supply to the pitcher isn't shutting off
First Thing to Check
Empty the pitcher and see if water stops flowing into it
Parts Involved
How to Fix
- 1
1. Empty AutoFill pitcher completely
- 2
2. Check Main PBA CN60 connector is properly inserted
- 3
3. Measure voltage between CN60 pins 7 (signal) and 3 (ground)
- 4
4. Normal: 4.5V to 5V = no overflow, 0V to 0.5V = overflow detected
- 5
5. If voltage shows overflow but pitcher is empty, replace overflow sensor
- 6
6. If voltage normal, check water supply valve
Other Error Codes for RF23DB9700
The proximity sensor hardware is broken
The freezer temperature sensor isn't reading correctly
The fridge temperature sensor isn't reading correctly
The humidity sensor isn't working properly
The Cool Select room temperature sensor is malfunctioning
The Cool Select room fan isn't working properly
The ice maker temperature sensor isn't working
The cubed ice maker has failed multiple times