GE Refrigerator Error Code 24E
Freezer defrost function error
Freezer defrost function error — the freezer defrost heater is read as open or has been heating continuously for more than 80 minutes.
First step from the service manual
Check the freezer defrost heater circuit for open condition.
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
Get the full diagnostic procedure for 24E.
- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts from the OEM service manual
- Verified part numbers when replacement is required
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What 24E means on a GE refrigerator
The 24E error code on a GE refrigerator indicates a freezer defrost function fault. Specifically, the control board has detected one of two conditions: the freezer defrost heater circuit is reading as open (no continuity), or the defrost heater has been running continuously for more than 80 minutes without the defrost termination thermostat cutting it off. Under normal operation, the defrost heater runs in timed cycles to melt frost accumulation off the evaporator coils, then shuts off when the termination thermostat reaches its cutout temperature. When either fault condition is present, the board logs 24E and may suspend defrost operation to prevent damage.
The freezer defrost circuit includes several components that can trigger this code: the defrost heater element itself, the defrost termination thermostat (also called the thermal cutout or hi-limit), the defrost timer or control board, and the wiring harness connecting these parts. An open condition in the heater typically means the heater element has burned out and no longer has continuity. Continuous heating beyond 80 minutes usually points to a failed termination thermostat that is not opening the circuit at its rated cutout temperature, leaving the heater energized indefinitely.
The first diagnostic step is to check the freezer defrost heater circuit for an open condition. This involves disconnecting power, accessing the evaporator panel behind the freezer back wall, and using a multimeter to test the heater element for continuity. A functioning heater will show measurable resistance across its terminals. An open reading confirms heater failure. If the heater tests good, the termination thermostat should be tested next, followed by inspection of the wiring harness for damaged or corroded connections.
Source: manufacturer service documentation.
Common causes of 24E
- 01
Burned-out defrost heater element
Part replacementThe heater element itself has failed and shows no continuity when tested with a multimeter. This is the most common cause of an open circuit reading in the defrost system.
- 02
Failed defrost termination thermostat
Part replacementThe termination thermostat (hi-limit) has failed in a closed position and is not opening the circuit when it reaches its cutout temperature, causing the heater to run beyond 80 minutes. Test the thermostat for continuity at room temperature and verify it opens at its rated cutout temperature.
- 03
Damaged or broken wiring harness
Wiring / connectionWiring connections between the control board and the defrost heater circuit can become corroded, loose, or physically damaged, creating an open condition that the board interprets as a heater fault. Inspect the connectors at the heater terminals and along the harness for visible damage or corrosion.
- 04
Faulty defrost control board
Part replacementIn less common cases, the main control board may incorrectly monitor or control the defrost cycle, either failing to send power to the heater or failing to time the cycle correctly. This is typically diagnosed after the heater, thermostat, and wiring have been ruled out.
Frequently asked questions about 24E
What does 24E mean on a GE refrigerator?
Can I fix a 24E error code myself?
Is it safe to keep using my refrigerator when it shows a 24E error?
How much does it cost to repair a 24E error on a GE refrigerator?
Will resetting the refrigerator clear the 24E error code?
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