© 2010 Viking Preferred Service
38
Service Diagnostics and Procedures
Relay Board Diagnosis
Bake Relay
The VESO and VDSO series oven use one
concealed bake element in the cavity floor. It is
connected on the relay board to the outer bake
connection (inner bake is not used).
When the bake relay contact is energized (red LED
D19 at base of relay is illuminated red), check for
240 VAC between the yellow wire at the line break
relay and the blue wire on P9. If 0 VAC is measured,
disconnect power and remove the P9 Molex plug.
Reconnect power and using an Ohmmeter, check
for continuity between the relay contacts. When the
relay is energized; if infinite ohms (
1
) are measured,
this indicates a bad relay and replacement of the
relay board is necessary. If 0 ohms are measured,
the relay contact is closing.
Broil Element
Locate the P6 connector and the line break relay on
the relay board. The P6 connector will have a Molex
plug containing a violet, black, and gray wire. The
violet wire goes to the inner broil element, the
black wire is L1 input from main power supply, and
the gray wire goes to the outer broil element.
With the power off and Molex connector removed
from the P6 relay board connection, use an
Ohmmeter to measure resistance between the
violet wire in the Molex plug and the yellow
wire at the line break relay. This will measure the
resistance of the inner broil element and should
be approximately 24
1
. Likewise, the outer broil
element can be measured by reading resistance
between the gray wire in the Molex plug and the
yellow wire at the line break relay. A resistance
of approximately 45
1
should be found. If either
element fails to read resistance, remove the
element to repair or replace as necessary
(see Broil Element Disassembly, page 57).
Place meter
leads here
P-6
P-6
LED
