Testing The Oven Relay Board; Element Testing; Ohm Testing Elements At The Relay Board; Testing The Oven Relay Boards - Wolf Wall Oven-2 Series Technical & Service Manual

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

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
Ohm Testing Elements at Relay Board
This procedure will allow the service technician to ohm any of the elements directly at the relay board.
At the relay board, pull the wire off of the terminal DLB/E11. This is done to keep from ohming the relay board. It
does not take the High Limit out of the equation, but if the technician DOES NOT get an ohm reading from the DLB
lead to all of the element leads, then, there is a problem with the High Limit.
To eliminate the High Limit when taking ohm readings, the MDL cover will need to be removed. Then, remove the
wire from High Limit switch that goes to the elements. Now, take the ohm reading from that wire at the High Limit to
the desired element wire at the relay board.
Right Convection Element:
Left Convection Element:
Outer Bake Element:
Inner Bake Element:
Bake Stone Element:
Broil Element:
Relay(s) activated
Inner Bake Element
Broil Element
Bake Stone Element
Outer Bake Element
Right Convection Element
Left Convection Element
Figure 5-4. Element Testing Chart
PR5/E5 to DLB/E11 wire
PR2/E5 to DLB/E11 wire
PR4/E8 to DLB/E11 wire
PR3/E6 to DLB/E11 wire
PR6/E10 to DLB/E11 wire
PR1/E4 to DLB/E11 wire
5-5
Troubleshooting Guide
Display Response
Oven On Illuminated
Oven On Illuminated
Oven On Illuminated
Oven On Illuminated
Oven On Illuminated
Oven On Illuminated