Broil Relay (Inner And Outer); Inner Broil Relay; Outer Broil Relay; Convection Element - Viking RDSCD230-5B 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.

Broil Relay (Inner and Outer)

When a broil element is selected by the oven control
board, voltage is sent to the broil 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 broil elements. (L2 power is controlled by
the line break relay.)

Inner Broil Relay

Select a Broil 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 violet wire on P6. If 0 VAC is read,
disconnect power and remove the P6 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.

Outer Broil Relay

Select a Broil 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 grey wire on P6. If 0 VAC is read,
disconnect power and remove P6 Molex plug.
Reconnect power and using your Ohm meter, 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.
12

Convection Element

Locate the P2 connector and the line break relay on
control board. The P2 connector will have a Molex plug
containing a white/red and black wire. The white/red wire
goes to the convection element and the black wire is L1
input from main power supply.
With the power off and Molex connector removed from
the P2 control board connection, use an ohmeter to
measure resistance between the white/red wire in the
Molex plug and the yellow wire at the line break relay.
This will measure the resistance of the convection
element and should be approximately 18 ohms. If
the element fails to read resistance, remove element
to repair/replace (Follow the convection element
disassembly procedure).
©2012 Viking Preferred Service