my euhomy makes ice fine but the 'ice full' sensor never works, basket overflows and ice goes everywhere.

Diagnosis

The Euhomy IM-02 utilizes an infrared (IR) beam system to detect when the ice basket has reached capacity. This system consists of an IR emitter on one side of the interior wall and a receiver on the opposite side. When ice piles up and breaks the invisible beam, the machine triggers the "Ice Full" indicator and halts the freezing cycle. If the machine continues to produce ice despite the basket being overflowing, the beam is not being interrupted or the receiver is unable to "see" the signal. This failure typically occurs due to one of three reasons: mineral scale buildup from hard water creating a cloudy film over the sensor lenses, physical debris (like a stray piece of ice or food particle) blocking the lens, or a misalignment of the sensor housing. Because the IM-02 is a countertop unit, condensation often drips down the interior walls; as this water evaporates, it leaves behind calcium deposits that act as a physical shield, tricking the sensor into thinking the beam is permanently "clear" regardless of the ice level. You can confirm this by manually placing a piece of cardboard across the sensor path; if the "Ice Full" light still doesn't trigger, the issue is electronic or a severe blockage.

How to Fix It

To restore the functionality of the ice-level detection system, follow these precise cleaning and calibration steps:

1. Power down the unit completely by pressing the Power button and then disconnecting the power cord from the wall outlet to prevent any electrical shorts during cleaning.
2. Remove the ice basket entirely from the unit to gain full access to the interior chamber.
3. Locate the two small, circular clear plastic windows embedded in the interior side walls. These are the IR emitter and receiver.
4. Dampen a precision cotton swab with 70% isopropyl rubbing alcohol. Do not use bleach or abrasive cleaners, as these can scratch the plastic lens and permanently distort the IR beam.
5. Gently scrub the surface of both sensor windows in a circular motion to remove white mineral scales or slime buildup.
6. Use a dry, lint-free microfiber cloth to polish the lenses until they are crystal clear and free of streaks.
7. Inspect the area around the sensors for any protruding plastic flashing or debris from the manufacturing process that might be obstructing the line of sight.
8. Reinsert the ice basket, plug the unit back in, and run a test cycle to ensure the "Ice Full" light activates once the ice reaches the top of the basket.

If That Didn't Work

• Check for Basket Displacement: Ensure the ice basket is seated perfectly flush against the bottom of the unit. If the basket is slightly tilted or warped, the ice may pile up in a way that bypasses the IR beam entirely, allowing ice to overflow in one corner while the sensor path remains clear.
• Inspect for Internal Wiring Faults: If you have recently moved the machine or it has been bumped, the internal wiring connecting the sensor to the main PCB may have loosened. If you are comfortable doing so, remove the bottom chassis screws and check the 2-pin connector leading from the sensor wall to the control board to ensure it is seated firmly.
• Test for Sensor Burnout: In rare cases, the IR emitter diode fails. If the lenses are clean and the "Ice Full" light never triggers even when you manually block the sensor with your hand, the sensor module itself is defective and requires replacement.
• Hard Reset: Unplug the unit for at least 30 minutes to allow the capacitors on the control board to discharge fully. This can occasionally clear a logic error where the sensor is ignored by the firmware.

Heads Up

• Water Quality Matters: To prevent future sensor failure, use filtered or distilled water. Hard water is the primary cause of mineral buildup on the IR lenses.
• Avoid Overfilling: Do not manually pack the ice down into the basket to make more room; this can push ice into the sensor housing and potentially crack the plastic lens.
• Regular Maintenance: Every 30 days, perform a "deep clean" using a mixture of white vinegar and water to descale the interior walls and sensors.
• Dry the Exterior: Ensure the area around the vents is clear of dust, as overheating can sometimes cause the control board to malfunction, leading to erratic sensor behavior.