Relay Board Diagnosis - Viking RDSOE306SS Service Manual

Service Diagnostics and Procedures

Relay Board Diagnosis

Bake Relay
The RDSOE and RDDOE 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 connection is not used).
When the BAKE relay contact is energized
(red LED D24 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 P5.
If 0 VAC is measured, disconnect power and remove
P5 Molex plug. Reconnect power and using an
Ohm meter, check for continuity between the relay
contacts. When the relay is energized; if infinite
ohms ( ) are measured, this indicates a bad relay
Ω
and replacement of the relay board is necessary. If 0
ohms are measured, the relay contact is closing.
© 2012 Viking Preferred Service
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 Ohm
meter 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 . Likewise, the outer broil element can be
Ω
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
should be found. If either element fails to read
Ω
resistance, remove the element to repair or replace
as necessary (see Broil Element Disassembly).
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