Fans And Motors; Rtd Testing; Probe Testing - Wolf Wall Ovens Technical & Service Manual

Troubleshooting Guide

Fans and Motors

First access Diagnostic Mode. Once in Diagnostic Mode, the technician can press a key to activate a fan or a
motor. The fan and motor relays will close to complete a 120 VAC circuit through a specific fan or motor. If the
Oven Controller detects the functionality through switches, an indicator will be illuminated on the corresponding dis-
play.
NOTE: Diagnostic Mode will end 2 minutes after last key stroke or when the CLEAR key is pressed.
Key Pressed Relay(s) activated
Roast Motor Door Lock (MDL)
Convection Roast Oven Light
Self Clean Cool Fan Low
0 Cool Fan High
Bake Inner Bake Element and
Right Convection Fan
Convection Bake Outer Bake Element and
Left Convection Fan

RTD Testing

First access Diagnostic Mode. Once in Diagnostic Mode, the RTD temperature as read by the Oven Controller is
shown in the corresponding display.
NOTE: Diagnostic Mode will end 2 minutes after last key stroke or when the CLEAR key is pressed.

Probe Testing

First access Diagnostic Mode. Once in Diagnostic Mode, the Probe temperature as read by the Oven Controller is
shown in the Stop Cook digits in the corresponding display. If the Probe has not been inserted, "0" will be shown as
the Probe temperature. If the Probe has not been completely inserted creating a short circuit of the Probe, "998" will
be shown as the Probe temperature.
NOTE: Diagnostic Mode will end 2 minutes after last key stroke or when the CLEAR key is pressed.
Action
MDL switch in open position
MDL in transition
MDL switch in closed position
Light turns on
Fan Apparency Switch
activated
Fan Apparency Switch not
activated
Fan Apparency Switch
activated
Fan Apparency Switch not
activated
Right Convection Fan
Inner Bake Element activated
Left Convection Fan activated
Outer Bake Element activated
Figure 5-5. Fans and Motors Testing Chart
5-6
W W a a l l l l O O v v e e n n s s
activated,
Display Response
Degree Icon (°) Illuminated
Degree and Centigrade
Icon Off
Centigrade Icon (°C)
Illuminated
Not applicable
Fahrenheit Icon °(F)
Illuminated
Fahrenheit Icon Off
Fahrenheit Icon (°F)
Illuminated
Fahrenheit Icon Off
Oven On Illuminated
Oven On Illuminated