Error code · Refrigerator

Kenmore 111 Top-Freezer Refrigerator: Main Board LED Flickers 1, 2 or 3 Sensor Failure

Medium · inspection needed

Code: Main Board LED 1, 2 or 3 Flickers
Appliance: Refrigerator
Brand: Kenmore
Warranty: 30-day workmanship

What Main Board LED 1, 2 or 3 Flickers means

This refers to Kenmore top-freezer refrigerators with model numbers starting 111, a platform whose builder is not documented. There is no display, so the main board LED flickers a count. One flicker means the refrigerator temperature sensor, two the ambient sensor and three the defrost temperature sensor has failed. The refrigerator may overcool, undercool or defrost on a wrong schedule.

Common causes of Main Board LED 1, 2 or 3 Flickers

Refrigerator temperature sensor (1 flicker)
Ambient or room temperature sensor (2 flickers)
Defrost temperature sensor (3 flickers)
Sensor wiring and connectors

✓ One safe check you can try

1. Count the flickers only if the light is visible without removing any cover, and write the number down. 2. Check that the doors close fully and the gaskets seal. 3. Keep the vents inside clear. 4. Do not open the board cover or touch the circuit board.

! Why to stop there

Which of the three sensors is actually out of range
We check the wiring and then confirm the sensor against its expected resistance
The board is not blamed until the sensors and wiring pass

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Refrigerator codes

i5 Lo / i5 Hi / iD Lo / iD HiKenmore 111 Bottom-Freezer Refrigerator Code i5 / iD: Ice Maker and Ice Room Sensors Main Board LED 4 or 6 FlickersKenmore 111 Top-Freezer Refrigerator: Main Board LED 4 or 6 Flickers, Door and Defrost Heater OP in Freezer DisplayKenmore 253 French-Door Refrigerator Code OP in Freezer Display: Open Freezer Sensor OP in Refrigerator DisplayKenmore 253 French-Door Refrigerator Showing OP in the Refrigerator Display (Open Fresh-Food Sensor) r1 Lo / r1 HiKenmore 111 Bottom-Freezer Refrigerator Code r1 Lo / r1 Hi: Fresh-Food Sensor rt Lo / rt HiKenmore 111 Bottom-Freezer Refrigerator Code rt Lo / rt Hi: Room Temperature Sensor SH in Freezer DisplayKenmore 253 French-Door Refrigerator Showing SH in the Freezer Display: Shorted Sensor SH in Refrigerator DisplayKenmore 253 French-Door Refrigerator Code SH in Refrigerator Display: Shorted Fresh-Food Sensor

Main Board LED 1, 2 or 3 FlickersMain Board LED 1, 2 or 3 Flickers questions

Where is the LED?

It sits on the main board, which is behind a cover on the cabinet. We read it for you rather than have you open the refrigerator, and we note the flicker count before we start the sensor tests.

Why only a flicker count?

This top-freezer has no display, so the board reports its status by blinking a light. The count tells us which sensor circuit to test, which keeps the visit short and the quote accurate.

Are 1, 2 and 3 all sensors?

Yes. They are the refrigerator, ambient and defrost sensors, each checked as its own circuit. A sensor is replaced only after the wiring and the reading prove it is out of range.

Book a visit

Still seeing Main Board LED 1, 2 or 3 Flickers?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 955-7152