Samsung · Refrigerator
Samsung Refrigerator 29E Error Code
Ice room temperature sensor invalid
What this error means
29E is an Ice Room Temperature Sensor error—the thermistor in the ice maker section sent readings outside the valid range. The board stops ice maker operation until the sensor circuit is trustworthy.
How 29E is detected
Samsung refrigerator models lock the door or lid before energizing fill, heat, or high-speed spin. 29E means the latch switch never sent a "locked" signal to the main control, or the lock motor did not complete its travel. On Samsung RF28R6241SR, Samsung RF23M8590SG, and similar variants, clothing caught in the gasket, a misaligned strike, or a failed latch assembly are the most common mechanical causes—not the board itself.
Inspect the door gasket perimeter and strike alignment before replacing the latch. Sensor connector unplugged at CN30 on the main PCB is reported frequently on this code. After correcting mechanical issues, breaker off five minutes, reseat the ice room sensor plug at the board. If the latch clicks but 29E persists, the door lock switch or wiring harness to the control board likely needs testing with a multimeter.
Do not force the door open during an active cycle; wait for the lock to release when the board de-energizes the lock motor—usually two to three minutes after canceling power on most Samsung units.
Common causes
- Sensor connector unplugged at CN30 on the main PCB
- Cut or shorted wire in the ice room harness
- Failed ice room thermistor element
- Moisture corrosion at the sensor jack after defrost overflow
Step-by-step fixes
- 1Breaker off five minutes, reseat the ice room sensor plug at the board
- 2Dry the sensor area if frost melt recently pooled in the ice duct
- 3Toggle ice maker off/on after reset
- 4Allow one hour after reseat before judging 29E clearance
When to call a technician
Technicians verify 1.0–4.5 V at CN30 pins 8–9 and ohm the sensor against Samsung spec.
Affected models
- Samsung RF28R6241SR
- Samsung RF23M8590SG
- Samsung RF28R7351SG
Prevention & maintenance
- Wipe the door gasket weekly and avoid overloading items against the seal—29E often starts as a slow leak or latch misalignment.
- Record when 29E appears in the cycle and whether it clears after a 60-second power reset on your Samsung refrigerator—that detail speeds diagnosis if you call service.
- Keep the model and serial number from the rating plate when ordering parts for 29E; Samsung uses multiple revisions with different harness lengths and board firmware.
- Photograph wiring connector orientation before disconnecting any component while troubleshooting 29E; reversed plugs on pumps and valves cause immediate repeat faults.