Capacitor Disassembly; Water Heater Disassembly - Viking VDB200 Service Manual

Service Diagnostics and Procedures
Circulation Motor Disassembly (cont.)
The image below shows the hose disconnected
from the pump. Notice that there is a white motor
grommet over the pump opening. Make sure it is
back in place and bottom edge is facing base pan
before reassembly. (The second right image on
page 31 shows proper position of grommet).
Grommet
The motor assembly can now be removed for
service.

Capacitor Disassembly

The capacitor is a start capacitor. The start capacitor
provides an electrical push to help get the motor
rotation started. This is accomplished by creating
a current to voltage lag in the start windings of
the motor. The slow build up of current allows the
motor armature time to react and begin to rotate.
Once the motor is very close to its rated speed, the
start capacitor and start windings drop out of the
circuit. If the capacitor is defective, when voltage is
applied the motor will just sit and hum.
Capacitor
To test the capacitor, place the volt ohmmeter to
the 1K ohm scale. Place the meter leads across
Ω
the terminals of the capacitor and take a reading.
Then reverse the meter leads on the capacitor
terminals. A reading should be seen momentarily
© 2010 Viking Preferred Service
Motor
Bottom
Edge
in one direction and an open circuit detected in
the other. If this occurs the capacitor is good. The
readings can also be made at the blue and yellow
wire connection at the circulation motor.

Water Heater Disassembly

The dishwasher uses a flow-through heater that will
heat the water as it passes though the center of
the heater. In order to remove, unplug the 2-wire
Gound Wire
To Neutral
To Control Board P12
Next, disconnect the two clamps that hold the heater
assembly to both the sump outlet (Arrow 1) and
Arrow 1
Arrow 2
connector that
supplies power to
the heating
element and the
ground wire which
connects to a
spade terminal on
the heater housing.
This image shows
the connections.
circulation pump
inlet (Arrow 2)
shown here.
The heater can
now be removed
for service. You will
need to transfer
the two 1-1/2" OD
hoses to the new
heater assembly.
The element is a
120-volt,12 ohm,
10 amp, 1200 watt
draw. It is controlled
from P12 (gray) to
Neutral on the main
terminal block.
32