Wolf L Series Code RTD SHORTED: oven sensor circuit shorted

What RTD SHORTED means

On Wolf L Series legacy wall ovens with the Invensys control, such as the SO30U/S and SO36U/S, RTD SHORTED means a shorted circuit was detected on the RTD sensor that reads the oven temperature. With a short, the control gets a reading it cannot use, so heating stops and the message shows. The prescribed repair is replacing the RTD sensor.

Common causes of RTD SHORTED

RTD sensor shorted
Damaged sensor lead touching metal
Sensor worn by repeated heat cycles

✓ One safe check you can try

1. Let the oven cool completely. 2. Turn the breaker off for a minute, then back on. 3. Run a short low bake to see whether the message clears. 4. If RTD SHORTED returns, stop using the oven and book service.

! Why to stop there

Confirming a short needs a resistance reading with the oven isolated.
The sensor wire passes through hot cavity walls.
A written price comes first, with 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 1D21Wolf M Series Code 1D21: Both upper broil element DLbs open 3721Wolf M Series Code 3721: Upper door lock switch position invalid 2030Wolf M Series Code 2030: Relay board ambient thermistor circuit

RTD SHORTEDRTD SHORTED questions

How is RTD SHORTED different from RTD OPEN?

OPEN means the sensor circuit is broken, SHORTED means it is shorted together. Either way the control cannot read cavity temperature, and the usual repair is a new RTD sensor.

Could the oven overheat with a shorted sensor?

The control stops heating when the reading is invalid, which protects the oven. We still suggest not forcing restarts and getting the sensor tested. Repeated restarts add nothing, so let us test the sensor instead.

Does the probe affect this message?

This message concerns the oven RTD, not the meat probe. A shorted probe shows PROBE SHORTED instead, so the two are easy to separate. Reading the code correctly saves a wrong-part visit.