Circulation Motor Disassembly - Viking FDB451 Service Manual

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.

Circulation Motor Disassembly

The Dishwasher use a single speed, capacitor
assist wash motor. Voltage between P5-1
and P5-2 should be 120 VAC. If voltage is not
present, verify wiring. If voltage is present and
the motor is not running, check the capacitor
and motor windings for proper readings.
The image below (with diverter removed)
shows the hose connections to the circulation
motor inlet, output, and the filter clean sump
inlet. Disconnect the green hose clamp from
the heater tube to pump inlet as well as the
red hose clamp from the filter inlet tube on
the pump assembly. Disconnect the pump
inlet hose from the pump assembly.
Output
©2012 Viking Preferred Service
! WARNING
Inlet Filter
Clamp
Pump Inlet
Clamp
The image below shows the filter inlet
hose to the sump disconnected. The arrow
points to the "Filter Clean" inlet in the sump.
Regardless of the position of the diverter,
water is directed to this tube.
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 previous image on this
page shows proper position of grommet).
The motor assembly can now be removed for
service.
Disassembly
Filter Clean
Inlet
Remove clamp
and hose
Motor
Grommet
Bottom
Edge
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