Written by
Elena Vasquez Appliance Care EditorPublished October 26, 2026
VERIFIED
Error codeSlow flash
ApplianceIce Maker
Slow flash on the control board LED
Equipment: CLR60, and the original CLR2060 and CLRCO2075 control boards, all older units.
Pattern: the board LED blinks slowly.
Meaning: a sensor problem has been detected.
Result: the ice maker stops running.
The two reasons given
The thermistor plug has become disconnected from the control board.
The thermistor has failed open.
Both checks involve the inside of the unit, so disconnect power first and leave the inspection to a technician.
LED patterns side by side
Normal running shows a steady light. A slow flash and a fast flash each halt the machine, and they are not interchangeable: the fast one signals heat, covered under Rapid flash. Newer 3000-series thermistor circuit messages are gathered under Zone T / Amb Thrm.
Ice maker service around San Francisco
For U-Line ice maker repair in San Francisco and across the Bay Area, dial (415) 329-7078. It helps to mention the slow flash, the model number, and whether the thermistor plug looked firmly seated.
Model compatibility: U-Line reuses codes across series and model years, so Slow flash may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
A slowly flashing control board LED indicates a sensor problem (thermistor plug disconnected or thermistor failed open), and the unit stops operating.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your U-Line appliance?
Book a specialist visit for a clear estimate and approval before any repair.
A single LED flash on the older U-Line CLR2060 signals an open overflow protection circuit on units with the P-60 pump. Interrupting board power clears it.
You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
Yes. We provide an upfront estimate after diagnosis. No parts are ordered or installed until you approve the work, so there are no surprise charges.
Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
Service areas are listed on the Locations page. Contact us with your ZIP code to confirm current coverage for your address.
Ready to get your U-Line appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
