Troubleshooting – Pump Solutions Group Neptune GLYCOL FEED SYSTEM G-100-1A, G-100-2A User Manual
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TROUBLESHOOTING
PROBLEM
PROBABLE CAUSE
Pump is running but is
1. The motor rotation is incorrect. The
not pumping anything
proper rotation of the motor is counter-clockwise when
looking at the motor shaft. Check the wiring diagram
on the motor or the attached motor diagram for proper
wiring.
2. On simplex single pump systems – Model G-XX-1 and
G-XX-1A. The motor should be wired for 115V
counter-clockwise rotation. See further information on
the pump, which is attached.
3. Duplex or two pump systems, Model G-XX-2A, require
one pump motor to be wired counter-clockwise and the
other in a clockwise rotation. Looking at the front of
the Model G-XX-2A, the control panel facing you, the
pump motor on the left should be wired counter-
clockwise and the pump motor on the right should be
wired for a clockwise rotation.
Pump is not running when
1.
The low level float switch may be
HOA switch is in the AUTO
actuated. The low light will be on and
position
the audible alarm will sound on some
models. Add glycol to the tank until
the level switch is satisfied.
2.
The pressure switch in the discharge piping has been
satisfied. The pressure switch is factory set to actuate
the pump at 12 psi and shut-off at 30 psi. See pressure
switch information for pressure switch adjustment,
which can be found on the inside cover of the pressure
switch.