Samsung Refrigerator Error Code Ice On LED

The Ice On LED error indicates a problem with the ice maker, specifically a sensor error or a failure of the ice maker's internal function test. The main PCB monitors a signal voltage between 0.5V and 4.5V from the ice maker via connector CN90. When this voltage is out of range or the function test fails, the error is triggered. The ice maker will not operate reliably until the underlying fault is corrected.

Yes, the refrigerator's cooling functions are separate from the ice maker system, so your food should remain at safe temperatures while this error is present. However, the ice maker will not function correctly until the fault is resolved. You should avoid consuming ice produced just before or during this error condition, as the harvest cycle may not have completed properly.

Repair costs vary depending on the root cause. If only wiring or connector work is needed, costs may be minimal beyond a service call fee, typically ranging from $75 to $150. Replacing an ice maker assembly generally adds $100 to $300 in parts, with total repair costs commonly falling between $150 and $450 when using a professional technician. Main PCB replacement is the most expensive scenario and can push total costs higher.

Some steps, like inspecting and reseating the wiring harness at the main PCB connector CN90, can be done by a confident DIYer with basic tools. However, accurately diagnosing this error requires a multimeter to measure voltage between specific connector pins, which requires familiarity with working around live circuits safely. Replacing the ice maker assembly is a moderate-difficulty repair that involves disconnecting the unit from power and carefully removing the ice maker from the freezer compartment.

A simple power reset will generally not permanently clear this error if the underlying hardware fault remains present. The error is tied to a measurable voltage signal from the ice maker sensor, so it will return as long as that signal is out of range. After any repair, the unit should be powered on and observed to confirm the error does not reappear before considering the issue resolved.