Wolf Legacy Dual Fuel Code CONTROL COM: Controller link lost

What CONTROL COM means

On Wolf Legacy Dual Fuel ranges, such as the DF304, DF364, DF366 and DF484CG built before 2013, CONTROL COM means communication with the oven controller has been lost. That control family matches the L Series Invensys design. Check points include the flat flex cable between the control panel assembly and the oven controller. The oven may stop heating and show the message.

Common causes of CONTROL COM

Flat flex cable between control panel assembly and oven controller loose or damaged
Oven controller failing
Control panel assembly problem

✓ One safe check you can try

1. Turn the oven off and wait five minutes. 2. Switch the range's breaker off for one minute and back on. 3. Wait for the display and try a short bake. 4. If CONTROL COM returns, call us. Do not open the control panel or touch the flat cable yourself.

! Why to stop there

The flat flex cable and controller sit behind panels with live power.
Replacing the controller is a larger repair, so we verify the cable and panel first.
We quote in writing before beginning work.
Our repair has a 30-day workmanship 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.

→Same appliance

Other Wall Oven codes

0121Wolf M Series Oven Code 0121: upper right convection relay shorted 0221Wolf M Series Code 0221: Upper Bake Element DLB Shorted 0321Wolf M Series Oven Code 0321: Broil Relay Shorted on the Upper Element 0421Wolf M Series Code 0421: upper left convection relay shorted 0630Wolf M Series Oven Code 0630: Auxiliary DLB Shorted 2420Wolf M Series Code 2420: Relay board RTD circuit 3C20Wolf M Series Code 3C20: High input voltage 2631Wolf M Series Code 2631: Relay board door switch circuit

CONTROL COMCONTROL COM questions

Does CONTROL COM appear on wall ovens?

It is documented for the Legacy Dual Fuel range. The same control family appears in L Series wall ovens, which use COMM ERR for a similar message.

What is the flat flex cable?

It is a thin ribbon cable that carries signals between the control panel assembly and the oven controller. It is the first thing we inspect.

Is my pre-2013 range worth repairing?

Often yes, depending on the cause. We tell you plainly after diagnosis, with the price in writing first. A reset may help only briefly if the cable is the cause.