Fans And Motors; Rtd Testing; Probe Testing - Wolf Wall Oven-2 Series 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
Key 7 Left Convection Fan
Key 9 Right Convection Fan
Panel Lock Fan Apparency logging

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.
W W a a l l l l O O v v e e n n S S e e r r i i e e s s
W W a a l l l l O O v v e e n n S S e e r r i i e e s s
Action
MDL switch in open position
MDL in transition
MDL switch in closed position
Light turns on
Cool Fan Low
Cool Fan High
Left Convection Fan
Right Convection Fan
Used on units prior to serial
number 11100847 which used
Apperency Switches.
Figure 5-5. Fans and Motors Testing Chart
5-6
Display Response
Degree Icon (°) Illuminated
Degree and Centigrade
Icon Off
Centigrade Icon (°C)
Illuminated
Not applicable
COOL FAN LO
COOL FAN HI
L CONV ON
R CONV ON
"L" = Fan apparency switch
Note: No display means no
fan apparency switches.