Viking Undercounter Wine Cellar Code P1: thermostat probe failure

What P1 means

On Viking 3 and 5 Series undercounter wine cellars and beverage centers with the electronic controller, such as the VWCI5240G, VWCI5150G, FWCI1240G and VBCI5240G, a flashing P1 means the thermostat probe has failed. The probe is the temperature sensor the controller reads to decide when to cool. Without a valid reading the controller cannot regulate the cellar, so the temperature may drift warm or run cold. Wine and drinks in the unit are then at risk until the probe is replaced.

Common causes of P1

A thermostat probe that has gone open or shorted
A probe wire or plug that has loosened
A controller input that no longer reads the probe

✓ One safe check you can try

1. Check the cellar with a household thermometer. 2. Move valuable bottles to a stable place if it is warm. 3. Turn the unit off for a minute and turn it back on. 4. Watch whether P1 returns. 5. If it does, call us and note the thermometer reading.

! Why to stop there

The probe sits inside the cabinet and needs a meter
The controller cannot regulate without it
Wine is sensitive to temperature drift

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 Wine & Beverage codes

E2Viking Wine Cellar Code E2: Condenser Fan Amps High or Low E3Viking Dual-Zone Wine Cellar Code E3: Upper Sensor A Out of Range E4Viking Wine Cellar Code E4: Lower Sensor B on Dual-Zone Models Hi/Low Temp LowerViking Wine Cellar Message "Hi/Low Temp Lower": Lower Zone Outside Its Range Hi/Low Temp UpperViking Wine Cellar Message "Hi/Low Temp Upper": The Upper Zone Strays From Its Range Power FailureViking Wine Cellar Message "Power Failure": Flashing Amber Alert Power FailureViking Fully Integrated Wine Cellar Message "Power Failure": extended power interruption Upper too coldViking Fully Integrated Wine Cellar Message "Upper too cold": upper zone below its setting

P1P1 questions

What is the thermostat probe?

It is a small temperature sensor inside the cabinet. The controller reads it to decide when the compressor runs, so a failed probe upsets the whole cooling cycle.

Will the cellar keep cooling?

Sometimes by a fallback routine, but the temperature is no longer well controlled. Check it with a thermometer and protect valuable bottles while you wait for the repair.

How fast can you repair it?

Often in one visit, since the probe is a common part. We test first, quote the price in writing, and the repair carries a 30-day workmanship warranty.