Sun Pumps PCC-48BLS-M2 - Manual (Page 15)

7. Check for proper dip switch settings on your controller. Switches 5 and 6 must be in the off position for proper
operation. Also dip switch 8 should be in the off position except when water is absolutely necessary. Damage
to batteries may result in use of switch 8. Damage to battery systems is not covered under the pump or
controller warranty.
PUMP IS RUNNING BUT THE OUTPUT IS LOW
1. Make sure you have a full battery bank and that you have sufficient voltage. Then verify power coming out of
the controller. Look at the LCD screen and read the voltage, current and power. Check this against the pump
chart for your specific application.
2. If the power is correct for your pump model and battery bank size then make sure the pump wires are connected
to the proper terminals. If two wires are reversed the motor will be running in reverse. It may still pump but not
at the full rated output.
3. If the wires are correct, check a DC voltage loss chart for the current shown on the LCD screen of the
controller. Improperly sized wire can reduce the performance of the pump.
4. If the wires are correctly sized, verify that your system does not have any leaks where water can be lost. If you
cannot determine the problem, contact Sun Pumps for further assistance.
PUMP DRAWS EXCESSIVE CURRENT
(More than the rating of the pump, but less than the rating of the
controller)
1. Check wiring diagram for proper connection.
2. Check for skinned wires or faulty connections. Check all connections for tightness.
3. Check for locked motor armature. Watch the motor shaft or fan blade on the motor as the controller attempts to
start the pump. You should see a couple of “twitches” as the controller prepares to run the pump. If the motor
still does not run. Contact the Sun Pumps for further assistance.