Bake Relay (Inner And Outer); Inner Bake Relay; Outer Bake Relay - Viking RDSCE2305B Service Manual

Troubleshooting
To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit, unless test
procedures require power to be connected. Discharge capacitor through a resistor before attempting to service.
Ensure all ground wires are connected before certifying unit as repaired and/or operational.
P5 Molex plug and the yellow wire from
the line break relay. This will measure the
resistance of the outer bake element and
should be approximately 38 ohms. Likewise,
the inner bake element can be measured by
reading resistance between the orange wire
in the Molex plug and the yellow wire from
the line break relay. A resistance reading of
approximately 38 ohms should be found.
If either element fails to read resistance,
remove element to repair or replace (Follow
the bake element disassembly procedure).

Bake Relay (Inner and Outer)

When a bake element is selected by the
oven control board, voltage is sent to the
bake relay coils. A red LED in front of each
coil verifies coil voltage is being sent to
that particular relay. This does not indicate
however that the relay is functioning. When
the individual element relays are energized,
(L1-black) power is sent through the relay to
the bake elements. (L2 power is controlled by
the line break relay.)

Inner Bake Relay

Select a cooking program. When the inner
relay contact is energized (red LED lit at
base of relay), check for 240 VAC between
the yellow wire at the line break relay and
the orange wire on P5. If 0 VAC is read,
disconnect power and remove P5 Molex plug.
12
! WARNING
Reconnect power and using your ohmeter,
check for continuity between the two relay
contacts (refer to photo, above). If you read
infinite ohms (∞) when the relay is energized,
this indicates a faulty relay and you will need
to replace the control board. If you read 0
ohms, the relay contact is closing.

Outer Bake Relay

Select a cooking program. When the outer
relay contact is energized (red LED lit at
base of relay) check for 240 VAC between
the yellow wire at the line break relay and the
blue wire on P5. If 0 VAC is read, disconnect
power and remove P5 Molex Plug.
Reconnect power and using your ohmeter,
check for continuity between the two relay
contacts (refer to photo, above). If you read
infinite ohms (∞) when the relay is energized,
this indicates a faulty relay and you will need
to replace the control board. If you read 0
ohms, the relay contact is closing.
©2012 Viking Preferred Service