Testing The Oven Relay Board; Element Testing - Wolf Wall Ovens Technical & Service Manual

Electronic Control System

TESTING THE OVEN RELAY BOARD

Element Testing

First access Diagnostic Mode. Once in Diagnostic Mode, the Technician can press a key to activate an element. The
element relay and the double line breaker(dlb) will close to complete a 240/208 VAC circuit through a specific element.
If the Oven Controller detects the current running through the closed circuit, OVEN ON will be illuminated on the cor-
responding display.
NOTE: Diagnostic Mode will end 2 minutes after last key stroke or when the CLEAR key is pressed.
Key Pressed
Bake
Broil
Bake Stone
Convection Bake
Convection Broil
Convection
* Note: The current sensor only detects the element circuits, not the Fans.
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
Relay(s) activated
Inner Bake Element
and Right Convection Fan*
Broil Element
Bake Stone Element
Outer Bake Element and
Left Convection Fan*
Right Convection Element
Left Convection Element
Figure 3-75. Element Testing Chart
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 3-76. Fans and Motors Testing Chart
3-22
W W a a l l l l O O v v e e n n s s
Display Response
Oven On Illuminated
Oven On Illuminated
Oven On Illuminated
Oven On Illuminated
Oven On Illuminated
Oven On Illuminated
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