Kenmore Elite 51133 Refrigerator Problems & Error Codes — Overview
The Kenmore Elite 51133 is a side-by-side or French door refrigerator that shares its platform with various OEM manufacturers, so error code meanings can vary by the exact suffix on your serial tag. Most fault codes on this unit point to defrost system problems, evaporator fan issues, or ice maker faults. The display will show alphanumeric codes like Er RF (refrigerator fan fault) or Er dH (defrost/heater fault) when a component fails or an airflow blockage is detected. Because Kenmore sources from different manufacturers, always verify your full model number before ordering parts or interpreting codes.
Most Common Problems on This Model
- Evaporator coil iced over and no cooling Failed defrost heater or defrost thermostat lets frost build up on the coil and blocks airflow, replace the defrost heater assembly and check the defrost thermostat for continuity.
- Er RF error code on display Evaporator fan motor has failed or the fan blade is jammed by ice buildup, defrost the coil manually and test the fan motor for operation and replace if it does not spin freely.
- Ice maker not making ice or very slow Water supply line is frozen, the inlet valve is clogged, or the supply valve is closed, check that the household valve is open and thaw any frozen fill tube with warm water or a hair dryer.
- Er dH or defrost fault code Defrost heater circuit is open due to a blown thermal fuse or broken heater element, test continuity on the heater and the defrost thermostat and replace the failed component.
- Warm refrigerator compartment but freezer works Evaporator fan is not running or the damper control is stuck closed, verify the fan spins when the door is closed and replace the fan motor or damper assembly as needed.
- Code persists after part replacement Main control board or wiring harness has a fault, check all connector pins for corrosion or loose contacts and replace the control board if component tests pass but the code returns.
- Frost buildup in freezer and around door seals Door gasket is torn or the door is not closing fully, inspect the gasket for gaps and replace it if you can pull a dollar bill out easily when the door is closed.
- Noisy evaporator fan or grinding sound Fan motor bearings are worn or ice has formed on the fan blade, defrost the evaporator and replace the fan motor if noise continues after the ice is cleared.
Parts That Commonly Fail
| Part | Notes |
|---|---|
| Defrost heater assembly | Amazon | Fails open and allows evaporator to ice over, test for continuity across terminals. |
| Evaporator fan motor | Amazon | Stops spinning or runs noisy, often due to ice damage or bearing wear. |
| Defrost thermostat or thermal fuse | Amazon | Blows open when overheated, breaking the defrost heater circuit. |
| Main control board | Amazon | Replace only after verifying all sensors and wiring, codes can stick due to board faults. |
Refrigerator Error Codes for This Model
These codes apply to this model line:
- Kenmore Refrigerator Er 1F error code
- Kenmore Refrigerator Er Dh error code
- Kenmore Refrigerator Er Ff error code
When to Call a Pro
Call a tech if you see an error code that returns immediately after a reset, if you are not comfortable using a multimeter to test heater and fan circuits, or if refrigerant or sealed-system work is needed after all electrical components test good. Also call for help if you need to access the evaporator coil behind interior panels and are unsure how to remove shelves and covers without breaking clips. Control board diagnosis and replacement often requires the service manual for your exact OEM platform, so professional help saves time when the fault is not obvious.