Error Code 52C
The main board can't communicate with the WiFi module
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 52C
What This Means
WiFi module connector improperly inserted; WiFi module wire disconnection; Defective WiFi module; Defective Main PBA; Communication bus error
What actually causes this:
The WiFi module connection is loose or the module failed
First Thing to Check
WiFi connectivity and SmartThings app features won't work
Parts Involved
How to Fix
- 1
1. Check WiFi module connector insertion
- 2
2. Verify connector at Main PBA is fully seated
- 3
3. Inspect communication wires for damage
- 4
4. Check for bent or corroded pins
- 5
5. If connections normal, replace WiFi module
- 6
6. If issue persists, replace Main PBA
Other Error Codes for RF29DB9900
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