Increase Quality Through Interaction with the Field
b. A multimeter lead will always be on the Blue Common
test
point.
c. Place the other lead on the Brown On/Off test point, press and
hold the Power switch – should go from 0L to 0.00 or ∞ to 0
depending on the type meter. If the meter goes from 0L to some
value then back to 0L you probably aren’t getting a good push
on the switch however this is enough to show the switch is
working.
d. Repeat the process at the Red test point for High and the
Yellow test point for Low.
Brown
Yellow
Red
Blue
Brown
On/Off
Red
High
e. If all three switches have continuity then the switch is not the
problem. Go to 6.
Blue
Common
Yellow
Low
6. Power Supply – 120VAC & 12VDC
a. AC Volt Input
b. With the Red meter probe in contact with the Black conductor of
the connector and the Black probe in contact with the White
conductor, plug in the power cord: 120VAC should be present
as shown (119.7VAC) whether the unit is turned on or not.
Increase Quality Through Interaction with the Field
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