Error Code DP
Main board and water/ice dispenser panel are not communicating
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: DP LED blinks
What This Means
Communication cable disconnected; Connector pins damaged; Main board failure; Dispenser panel PCB failure
What actually causes this:
Loose cable or failed dispenser panel board
First Thing to Check
Check if dispenser panel cable is firmly connected to main board
Parts Involved
How to Fix
- 1
1. Check communication cable to dispenser panel
- 2
2. Inspect connector seating and pins
- 3
3. Use oscilloscope to verify signal transmission
- 4
4. Check PCB soldering on both boards
Other Error Codes for RF22R7351AZ
Freezer temperature sensor is broken or disconnected
Outside temperature sensor is not working
Ice storage room temperature sensor is not working
Flex Zone damper heater circuit is broken
Refrigerator temperature sensor is broken or disconnected
Flex-Zone temperature sensor is broken or disconnected
Freezer fan motor is not running
Control board IO expander chip is not working