Error Code Library
Updated
Sensor and defrost codes mean the fridge cannot read a temperature or cannot finish melting frost off the cooling coil. Left alone, a defrost fault slowly warms the fresh-food side.
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Refrigerator sensor and defrost codes mean the fridge cannot read a temperature or cannot melt frost off its cooling coil, and both usually show up as a warm fresh-food section.
Fridges read several temperature sensors and run a defrost heater to melt frost from the evaporator coil. LG shows Er dH for a defrost heater problem and Er dS, Er FS or Er rS for a sensor. GE shows dE for defrost and SE for sensors. Samsung uses 5E for the fridge defrost sensor.
When defrost fails, ice builds on the coil, airflow stops and the fridge section warms while the freezer often stays cold. A sensor fault can make the fridge run constantly or not at all.
A fan code shown alongside it can share the same frozen coil, explained under LG Er FF and Samsung 22E fan codes. Fixing the heater, sensor or control is work for refrigerator defrost repair in NC.
LG Er dH, GE dE and Samsung 5E are the defrost codes searched most, and all of them are marked stop because the part needs testing once the code returns.
| Brand | Code | Meaning | What to do |
|---|---|---|---|
| LG | Er dH | Defrost heater circuit fault | Stop and call |
| LG | Er dS | Defrost sensor fault | Stop and call |
| LG | Er FS / Er rS | Freezer or refrigerator sensor fault | Stop and call |
| GE | dE | Defrost cycle not completing | Stop and call |
| GE | SE | Temperature sensor out of range | Stop and call |
| Samsung | 5E | Fridge defrost sensor fault | Stop and call |
Codes are listed for identification. Meanings vary by model, so confirm the code in your owner’s manual.
Sensor and defrost codes are the most common refrigerator codes behind a warm fresh-food section. They rarely mean the cooling system is gone, but they do get worse with time.
LG Er dH points to the defrost heater circuit. Without defrost, frost builds over the evaporator and the fridge warms first while the freezer stays cold.
Er dS points to the defrost sensor. Both codes often show after the fridge has run for weeks with a slowly icing coil.
LG Er FS is the freezer sensor and Er rS is the refrigerator sensor. A failed sensor can make the fridge run without stopping or not start cooling at all.
GE dE means the defrost cycle is not finishing, and SE means a temperature sensor is out of range. On newer GE models these show on the dispenser display.
Samsung 5E, also shown as 5C, points to the fridge defrost sensor. Samsung French-door fridges are known for ice buildup behind the fridge evaporator cover.
Note the temperature in both sections and look for frost on the freezer back wall before you call.
Book a repair when the code returns after a reset, or when:
Error Code FAQs
Defrost and sensor questions usually start with a warm fresh-food section while the freezer still feels cold.
Er dH means the defrost heater circuit has a problem, so frost can build on the coil and warm the fridge. Unplug it for five minutes; if the code returns, call for service.
dE means the defrost cycle is not finishing. Watch for frost on the freezer back wall and a warming fresh-food section.
A defrost fault or a stopped fan is the usual reason. Cold air from the freezer cannot reach the fridge through an iced-over coil.
SE means a temperature sensor is out of range. Unplug the fridge for five minutes; if SE returns, the sensor or its wiring needs service.
Not the cooling system. It means the defrost part has failed, which lets ice block airflow. It is usually a single part repair.
Note the code and the temperature in both sections before you call.
Not affiliated with any brand
Brand names are trademarks of their owners and are used only to identify appliances. Appliance Repair North Carolina is not affiliated with, endorsed by or authorized by any appliance manufacturer. Error code meanings can change between models and production years, and not every code here has been checked against the manufacturer’s manual yet, so confirm a code in your owner’s manual before acting on it.
