Viking Induction Cooktop Code 5 flashes (with brief interval): Power Device Temperature Sensor

What 5 flashes (with brief interval) means

On Viking induction and radiant cooktops with an LED flash code, such as the VICU165-6B and VCCU105-4B, five flashes with a brief interval mean a malfunction of the temperature sensor that watches the power device. The same table covers the VIRT301 and VCRT301 rangetops. Without a trustworthy reading, the cooktop limits or stops heating because it cannot tell if the electronics are too hot.

Common causes of 5 flashes (with brief interval)

Power device temperature sensor malfunctioning
Sensor wire or connector loose
Control not reading the sensor

✓ One safe check you can try

1. Turn all zones off and let the cooktop cool. 2. Wipe up any spills near the control area. 3. Switch the breaker off for a minute and back on. 4. Try a gentle heat setting. 5. If five flashes return, call us.

! Why to stop there

The sensor sits on the power device inside the unit
Resistance readings need a meter
Skipping the sensor test risks replacing the wrong part

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 Cooktop codes

8Viking Induction Cooktop Code 8: unassignable error received FOViking Designer Cooktop Code FO: Software Error in the Control 8 flashes (with brief interval)Viking VCCU Cooktop Code 8 flashes (with brief interval): Inside Ambient Is Too High FrViking Designer Cooktop Code Fr: A Relay Error Stops All Heat 9Viking Induction Cooktop Code 9: coil temperature sensor defective FtViking Designer Cooktop Code Ft: Sensor Failure With a Small t 9 flashes (with brief interval)Viking Induction Cooktop Code 9 flashes (with brief interval): Cookware Not Compatible FUViking Designer Cooktop Code FU: Another Key Error Stops the Elements

5 flashes (with brief interval)5 flashes (with brief interval) questions

Is the cooktop overheating?

Not necessarily. Five flashes says the sensor that watches the power device is not working, so the control cannot judge the heat. It limits heating for safety.

How is it different from one flash?

One flash says the power device is too hot. Five flashes says the sensor reading it has failed. The causes and the repairs differ. Knowing which pattern you saw saves time.

Is there a warranty on the repair?

Yes. We give a written price first, and the work is covered for 30 days. Our diagnosis tells you exactly which sensor needs replacing, and our written quote comes before any work or parts are ordered.