Viking Beverage Center Ice Maker LED 2 Blinks: Defrost Thermistor Reading Is Off

What Diagnostic LED: 2 blinks means

On Viking undercounter beverage centers with an ice maker, such as the VURI1401D, VURI1401T and DFRI1401D, the diagnostic LED behind the grille blinks twice to say the defrost thermistor is out of range. A technician reads it. The unit may cool or defrost wrongly. These blink counts differ from the VUIM150 ice maker, where two flashes mean the bin sensor.

Common causes of Diagnostic LED: 2 blinks

Defrost thermistor out of range
Thermistor connector loose
Control board input problem

✓ One safe check you can try

1. Check that the unit is plugged in and the temperature control is on. 2. Unplug it for one minute and restart. 3. Look for frost buildup and keep the door closed. 4. Do not remove the grille cover. 5. If the unit is not cooling or making ice, call us.

! Why to stop there

The LED is behind the grille
The thermistor must be measured with a meter
Wrong guesses mean wrong parts

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.

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Other Ice Machine codes

dSp IcEViking Built-In Freezer Display dSp IcE: Ice Maker Needs Reset Time to Clean lightViking Ice Machine Time to Clean Light: Six-Month Cleaning Reminder 2 FlashesViking Undercounter Ice Machine Code 2 Flashes: bin sensor open or shorted 3 FlashesViking Undercounter Ice Machine Code 3 Flashes: evaporator sensor open or shorted 4 FlashesViking Undercounter Ice Machine Code 4 Flashes: bin and evaporator sensors both reported Check Water light (flashing blue)Viking Ice Machine Check Water Light Flashing Blue: No Water Supply CL (alternating with ICE)Viking Clear-Ice Machine Display CL and ICE: Time for a Cleaning Diagnostic LED: 2+3 blinksViking Beverage Center Ice Maker LED 2 Blinks, Pause, 3 Blinks: Both Thermistors Out of Range

Diagnostic LED: 2 blinksDiagnostic LED: 2 blinks questions

What does two blinks mean on my unit?

The defrost thermistor is reading out of range. It helps the control manage frost on the evaporator. The count of blinks is the code, so please note if you see two blinks and a pause.

Is this the same as the VUIM150?

No. On that ice maker two flashes mean a bin sensor. Our unit is the beverage center family VURI and DFRI. Please give us your exact model number.

Can I fix it myself?

Check power and airflow only. The thermistor needs a technician. We quote the price first and cover repairs for 30 days. Replacing a thermistor is usually a short job once the part is in hand, and we explain it first.