Sub-Zero Refrigerator Error Code EC 62: How to Fix It

Q: What does Sub-Zero error code EC 62 mean?

EC 62 on a Sub-Zero refrigerator means the ice maker has been detected as too hot. This is most commonly caused by a water inlet valve that is stuck — either stuck open (allowing continuous water flow) or stuck closed (blocking water and causing the ice maker heater to run without cooling effect). The result is an overtemperature condition in the ice maker compartment.

Q: Can I still use my Sub-Zero refrigerator while it shows EC 62?

Yes, the refrigerator and freezer compartments will generally continue to cool normally while EC 62 is displayed. However, ice production will be disrupted or stopped entirely. You should address the error promptly, as a stuck-open water valve can cause water to leak or overflow, and prolonged overheating of the ice maker assembly can lead to more expensive damage.

Q: How much does it cost to fix Sub-Zero EC 62?

If you replace the water inlet valve yourself, the part typically costs between $40 and $120 depending on your specific Sub-Zero model. If you hire a Sub-Zero authorized technician, expect a service call fee of $100–$200 plus parts and labor, bringing the total to $250–$500 or more. Thermistor replacement parts are generally less expensive, usually $20–$60 for the part alone.

Q: Will resetting my Sub-Zero clear the EC 62 error?

A reset may temporarily clear the EC 62 code if it was triggered by a minor sensor glitch. To reset, switch off the power button inside the refrigerator (or unplug it), wait 30 seconds, and restore power. However, if the underlying cause — a faulty water inlet valve or failed thermistor — is not resolved, the error will return within a short time once the ice maker attempts to run again.

Q: Is EC 62 covered under Sub-Zero warranty?

Sub-Zero offers a limited warranty that typically covers parts for two years and sealed system components for longer periods, but specific coverage depends on your model and purchase date. If your unit is within the warranty period, contact Sub-Zero customer service at 1-800-222-7820 before attempting any DIY repair, as unauthorized repairs can void warranty coverage. Sub-Zero also offers an extended warranty program that may cover this type of component failure.

Abstract

The Sub-Zero EC 62 error code indicates that the ice maker has become too hot, typically because the water inlet valve is stuck open or closed, disrupting normal water flow and causing the ice maker to overheat. This condition can prevent ice production entirely and, if left unresolved, may cause further damage to the ice maker assembly. The fix often involves inspecting and replacing the water inlet valve, though resetting the unit and checking water supply conditions should always be your first steps.