© 2011 Viking Preferred Service
119
Service Diagnostics and Procedures
Hall Effect Sensor (continued)
If the voltages are correct, reconnect the 3-wire
Molex plug. Place your meter leads into pin (1)
black and pin (2) white. Activate the oven or the
diagnostic program so that the fan is energized.
With the fan turning, you should be reading
2.5-volts DC. If yes, then connect your meter
between pin (2) white and pin (3) red. Again you
should read 2.5-volts DC. If you do not read
2.5-volts but a full 5-volts DC, then the Hall Effect
Sensor is defective and the fan motor (with
sensor) will need to be replaced.
Another test that can be made is with the oven
shut off and the Molex plug connected, place your
meter leads into pin (1) black and pin (2) white. Set
your meter to DC Volts. You will read either 0- or
5-volts, depending on where the motor is
positioned. If you manually spin the motor, you will
see the meter jump between 0-5 volts. The same is
true if you place your meter leads in pin (2) white
and pin (3) red. As you manually spin the fan you
will see 0- or 5-volts. Therefore, in any position,
one side will read 0-volts while the other will read
5-volts. This is a good test to see that the three wire
cable and Hall Effect Sensor have closed contacts.
WARNING
To avoid risk of electrical shock, personal injury, or death, disconnect electrical power to unit using power
switch before servicing. Wires removed during disassembly must be replaced on proper terminals to insure
correct earth ground and polarization. After servicing, reconnect power using power switch.
Содержание VDSC530 Series
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