Viking Designer DEDO530T, Service Manual

Page: 51 / 73

Diagnostics
© 2008 Viking Preferred Service
51
Door Latch motor assembly
(Continued)
When the oven is set to Self Clean, the relay board will energize the lock relay (K1) on the board.
FIG A shows the lock relay energized. As the lock motor turns, the SW2 switch is opened and the SW1 switch
closes. When the Main Control board senses the switch closure, it sends a signal to the relay board and power
is removed from the relay. You can also check the motor manually by accessing the diagnostic program and
scroll to the Door Lock test. The relay sends L1 power through the White wire (P2) on the upper relay board to
the lock motor as shown in
FIG B . L2 (Black) from the main terminal block is wired directly to the lock motor.
The lock motor is operated on 240 volts AC.
The lower relay board has a White w/Red tracer as shown in FIG C . L1 (Black) from the Main terminal block is
wired directly to the Lock motor. The lock motor is operated on 240 volts. FIG D shows the lower latch motor
with the center air vent trim removed. The lower latch is held in with 2 ¼ inch hex screws. FIG E shows the latch
pulled out. You can see the motor wires L2 (Black) and L1 (White w/Red tracer) connected to the motor.
The lock motor is operated on 240 volts.
Lock Relay
K1
Upper Relay Board
Lower Relay Board
To lock
motor
To lock
motor
CAUTION
Hazards or unsafe practices which
COULD result in minor personal injury,
product or property damage. Be sure to
disconnect the power from the oven
whenever testing the ovens high voltage
circuits
P2 P5 P3
P22
P2 P5 P3
P22
P2 P5
K7 K6 K5 K4 K3 K2 K1