F06 shows at power-up when the control finds the model header undefined.
Model compatibility: Viking reuses codes across series and model years, so F06 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
The model header is undefined, it is read only at power-up, and the EOC4 control is inoperable.
Meaning of F06
The EOC4 control relies on a model header to know which oven it is running. F06 says that header is undefined. That check happens once, when power is applied, so the code appears at that moment.
Consequences
The EOC4 is inoperable.
Priority A: a critical error.
Range: Clean light on, Cycle light flashing two times.
Wall oven fitted with a TOD2 or TOD3 clock: the display reads F06.
Remedy
For the technician, the sheet says to remove power and put in the right model header. No owner reset is listed, and the control should not be opened by the owner.
Codes with a similar profile
F08 concerns a dropped RS485 connection to the user interface.
The model header is undefined, it is read only at power-up, and the EOC4 is inoperable. The sheet gives priority A and a technician’s remedy: power down and insert the correct model header. For a range, count two Cycle-light flashes with the Clean light on.
Viking range service in Los Angeles
Booking is by phone at (310) 692-1112 for Viking range and oven service in Los Angeles. Say that F06 showed up at power-up, and whether anyone worked on the control lately. You can also read our oven repair page.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Viking appliance?
Book a specialist visit for a clear estimate and approval before any repair.
