N e p t u n e
™
1 . 2 5 H P P o o l P u m p M o t o r
I n s t a l l a t i o n a n d O p e r a t i o n M a n u a l
28
E 5
–
Open Phase
Self-Clearing (No), Retry Count (50), Retry Delay (12 Seconds), User Reset (Yes)
An open phase indicates that one or more of the three phase lines between the motor and control is
not connected securely, or that there is an open circuit in the motor winding phase. Output voltage in
the control is not able to reach the motor. The pump cycles through the shutdown/restart sequence
the number of times specified in the Retry Count to correct the fault condition. If that is unsuccessful,
the motor stops.
·
Always disconnect electrical power at the fuse box or circuit breaker panel before handling
electrical connections or performing maintenance on the motor. Allow the motor to come to a
complete stop and wait two (2) minutes. This allows the capacitors to discharge any residual
voltage.
·
The control unit on the motor contains hazardous voltage.
Remove the cover to the High Voltage Compartment. Refer to
Steps 1
–
2
in Wiring the Motor on
page 9
. Verify that the wiring connections are correct and securely tightened. Replace both
compartment covers. Refer to
Steps 7
–
9
on
page 10
.
Press the
Start/Pause
button to clear the fault from the LCD display. The retry sequence will start
over. Then, press any
Speed
button to restart the motor. If the fault continues to occur after verifying
the wire connections, contact your pool professional or a qualified electrician for service.
E 8
–
MC EE Error
Self-Clearing (No), Retry Count (50), Retry Delay (12 Seconds), User Reset (Yes)
This fault indicates that an error occurred in the memory area of the chip used to store software
information needed to run the motor. For some reason, the software was unable to read key values
from memory.
Press the
Start/Pause
button to clear the fault from the LCD display. The retry sequence will start
over. Then, press any
Speed
button to restart the motor. If the fault continues to occur after verifying
the wire connections, contact your pool professional or a qualified electrician for service.
E 11
–
MC Comm Lost
Self-Clearing (Yes), Retry Count (0), Retry Delay (0 Seconds), User Reset (No)
The motor somehow lost communication with the integrated User Interface. When that happens, the
pump shuts down.
·
Always disconnect electrical power at the fuse box or circuit breaker panel before handling
electrical connections or performing maintenance on the motor. Allow the motor to come to a
complete stop and wait two (2) minutes. This allows the control bus capacitors to discharge
any residual voltage.
·
The control on the motor contains hazardous voltage.
Remove the cover from the Voltage Compartment. Refer to
Steps 1
–
2
in Wiring the Motor on
page 9
. Verify that the wiring connectors on the circuit board are securely fastened. Replace the
compartment cover. Press any
Speed
button to restart the motor. If the fault continues to occur after
verifying the wire connections, contact your pool professional or a qualified electrician for service.
