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10. Motor Rotation Direction
If the pressure or fl ow seems low, check motor rotation direction. Turn the circuit breaker and disconnect
switch to the off position, and wait 5 minutes for dangerous voltages to discharge before proceeding. Switch
any two leads on the controller output (RED, BLK or YEL). Turn the circuit breaker and disconnect switch to the
on position. Observe pressure and fl ow. If pressure or fl ow still seems low check plumbing. When looking into
back of motor, rotation should be clockwise.
Note
It is possible for the pump to maintain constant pressure with a low fl ow or a high positive suction
head even if the pump is rotating backwards. While the pump is running, use an amp probe on one
of the output power leads connected to the motor and compare the current draw between the two
rotation directions. If the fl ow and pressure are the same in both rotation directions, the lowest
current reading will occur when the pump is running in the correct direction.
Figure 6
System Status Label
(3AB2 shown. 5AB2 is the same except the model number.)
13
Status Indicator Light
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