Viking Wall Oven F2 Error Code: What It Means & How to Fix It

Error Code Explained

What Does the Viking F2 Error Code Mean?

Root Causes

Common Causes of the Viking F2 Error Code

• 1
  Failed RTD Sensor Probe (Internal Short)

  The resistance temperature detector probe has failed internally with an electrical short, producing a near-zero resistance reading that the ERC interprets as an impossibly high temperature.
• 2
  Sensor Wiring Short Circuit

  The wiring between the RTD probe and the ERC has developed a short — typically from the harness chafing against the oven cavity wall or rear panel during a service event.
• 3
  Moisture Contamination of Sensor Connector

  Steam or condensate inside the sensor connector has created a conductive bridge between the signal terminals, simulating a shorted probe element.
• 4
  Heat Damage to Probe Wiring Insulation

  Extended high-temperature oven use has degraded the sensor wiring insulation, causing the two signal conductors to contact each other and create a short-circuit condition.

Step-by-Step Guide

How to Troubleshoot the F2 Error Code

1. 1
   Reset the Wall Oven

   Switch off the wall oven circuit breaker for 60 seconds, then restore power. If F2 does not immediately return, monitor the oven through one complete bake cycle to confirm the fault has cleared.
2. 2
   Do Not Use the Oven Until Repaired

   F2 means the oven cannot accurately read or regulate its own temperature. Operating the wall oven with an unresolved F2 fault risks overheating the oven cavity and damaging food and internal components.
3. 3
   Locate and Inspect the RTD Probe

   With power off and the oven cooled, inspect the RTD probe at the back of the oven cavity for visible damage or corrosion. Check the probe connector for moisture or contamination. Report your observations to your technician to assist in diagnosis.

Professional Service

When to Call a Viking Technician

FAQ

Frequently Asked Questions — Viking F2

• Can I use my Viking wall oven with the F2 error code active?
  No. F2 means the temperature sensor is shorted and the oven cannot regulate heat accurately. Using the oven with an active F2 fault risks overheating the cavity. Do not use the wall oven until the RTD probe has been replaced by a certified technician.
• What is the difference between F2 and F3 on a Viking wall oven?
  F2 indicates the RTD sensor is reading a short circuit — resistance too low, indicating an impossibly high temperature. F3 indicates an open circuit — resistance too high or infinite, indicating the sensor is broken or disconnected. Both prevent oven operation as safety measures, and both are resolved by replacing the RTD probe or its wiring.
• How do I know if my Viking wall oven RTD probe needs replacement?
  A technician will test the probe resistance with a multimeter. A functional Viking RTD probe reads approximately 1,090–1,100 ohms at 70°F room temperature. A reading near zero ohms confirms the probe is shorted (F2); a reading of infinite resistance confirms the probe is open (F3). Both conditions require OEM probe replacement.