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System Troubleshooting Guide
Symptom Possible Cause Corrective Action
Water fl ow rate
is not as high as
expected.
Motor is running backwards.
Verify motor connections.
See Figure 2 in the “Wiring
Connections” section.
Temperature in the controller
is too high. If the controller’s
heat exchanger becomes too
hot, the controller will reduce
the speed of the pump to
lower the power consumption.
Make sure there is at least 6” of room
around the controller for movement
of air. Avoid direct sunlight. Reduce
ambient temperature below 125°F
(51°C). Increase input voltage if
below 230 VAC.
Pump capacity cannot supply
the demand.
Use pump with higher fl ow rating
(if head requirement is still satisfi ed).
Excessive
pressure
fl uctuations.
Waterlogged tank.
Check tank for bladder damage.
Replace if necessary.
Reset the tank pre-charge pressure
(should be 70% of pressure sensor
setting).
Pressure tank is too small for
fl ow rating of the pump.
Use larger tank
(refer to Table 3 on Page 16 for
minimum Pressure Tank size).
Motor runs
continuously with
no fl ow demand.
Leak in the pitless adapter.
Re-seat the pitless adapter. Replace
seal as needed.
Leak in the household or
outdoor plumbing
Check for leaky faucets, valves
and/or pipe fi ttings and repair.