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Error code · Freezer

Viking Built-In Freezer Display “oPn”: temperature sensor alarm

On Viking built-in all-freezers such as the VCFB5303 and FDFB5303, the bottom-freezer VCBB5363E, and the current 5 Series, the display can show oPn in place of the temperature. This is a temperature sensor alarm: the control…

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Code
oPn
Appliance
Freezer
Brand
Viking
Warranty
30-day workmanship

What oPn means

On Viking built-in all-freezers such as the VCFB5303 and FDFB5303, the bottom-freezer VCBB5363E, and the current 5 Series, the display can show oPn in place of the temperature. This is a temperature sensor alarm: the control reads the sensor as open. The display shows either oPn or Shr, ALARM OFF silences the sound, and if the temperature display does not return, an authorized technician should be called.

Common causes of oPn

  • Temperature sensor circuit reading open
  • Loose or damaged sensor wiring or connector
  • Sensor needing replacement
✓ One safe check you can try

1. Press ALARM OFF to silence the sound. 2. Check that the doors are shut and the freezer is still cold to the touch. 3. Switch the freezer off at its breaker for a few minutes, then restore power to see whether the temperature display returns. 4. If oPn stays, keep the doors closed as much as possible and call us.

! Why to stop there
  • A sensor reading needs a meter on the sensor and its wiring
  • The freezer can drift warm while the sensor is out, which puts food at risk
  • We quote first in writing and back the repair with a 30-day warranty
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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oPnoPn questions
What does oPn mean?

It stands for an open sensor circuit. The control cannot read the temperature sensor, so it shows oPn in place of the number and sounds the alarm.

Is the freezer still cooling?

Often it is, but the control cannot confirm the temperature. Check food for firmness and use a thermometer if you have one, and have the sensor looked at.

How is oPn different from Shr?

Both are sensor alarms. oPn means the sensor circuit is open, and Shr means it is shorted. The repair point is the same sensor and its wiring.

Book a visit

Still seeing oPn?

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

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