Whirlpool Ice Maker Error Code No light

The No light condition means the ice maker's optical sensor system is not detecting an LED signal between its transmitter and receiver boards. This system is responsible for monitoring the ice level in the bin and coordinating the harvest cycle. The fault can result from a temporary self-check state, a wiring issue, a failed LED, or defective optics boards. If a 5-second power reset does not resolve it, one or both optics boards likely need replacement.

Start by unplugging the refrigerator for 5 seconds to clear any temporary self-check or harvest mode state, then retest the ice maker. If the error persists, inspect the wiring harnesses connected to both optics boards for loose or incorrectly seated connectors. If wiring is intact and the error remains, replace both optics boards as a set, since the transmitter and receiver work as a calibrated pair and a fault on either board produces the same no-light symptom.

If the issue is simply a loose wire or a temporary mode state, there may be no parts cost at all. Replacement optics boards, when required, typically range from roughly $30 to $80 per board depending on the specific model, and both boards are usually replaced together. Adding professional labor, total repair costs commonly fall in the range of $100 to $250, though this varies by location and service provider.

A reset can clear the No light condition if it was caused by a self-check in progress or an active harvest mode temporarily suppressing the LED. To reset, unplug the refrigerator for at least 5 seconds, then restore power and run the test again. If the no-light reading returns after the reset, the cause is a hardware fault such as a defective LED or optics board that a reset will not fix.

The refrigerator's cooling and food preservation functions are separate from the ice maker optics system, so your food will remain safe. However, the ice maker itself may stop producing ice or cycle incorrectly while this fault is active. It is fine to continue using the refrigerator, but the ice maker should be diagnosed and repaired to restore normal ice production.