Sub-Zero Error Code Guide · Denver
On supported 600 and 700 Series models, EC24 is associated with a defrost underheat condition. Exact clearing steps depend on the model and current temperatures.
Before Resetting
Record EC24 before any reset. If temperatures are high or rising, protect food and request service.
Exact meanings and owner steps vary by model and series. Compare the message with the applicable product guide; do not order a part from the code alone.
Manufacturer Reference
This independent service page summarizes scheduling and diagnostic context. Review the applicable manufacturer reference for owner guidance.
Open Manufacturer Reference →Frequently Asked Questions
No. A code narrows the diagnostic direction but does not replace testing on the correct model and series.
Record or photograph the complete code first. Do not repeatedly clear it while temperature, heat, water, or operation is becoming unsafe.
Provide the model number, exact code, current operating condition, service address, and any recent power or maintenance event.
Yes. Same-day service visits receive priority when the Denver route has an available appointment window.
Service is scheduled in Denver, Cherry Hills Village, Greenwood Village, Littleton, Centennial, and Highlands Ranch, including common coverage across ZIP codes 80206, 80113, 80111, 80120, 80112, and 80126.
Appointments are confirmed by address for Denver, Cherry Hills Village, Greenwood Village, Littleton when the concern involves a refrigerator not cooling, a door not closing, or temperature changing unexpectedly. The reported symptom helps determine the appropriate diagnostic visit. ZIP codes commonly served include 80206, 80113, 80111, 80120, 80112, 80126.
