GE GNPR40L Owner's Manual And Installation Instructions page 25

Troubleshooting Procedures
Problem
Capacity display stays
at "9999" even though
there is water usage
Control does not respond Button is not active in the
to REGEN button
Control does not display Transformer is unplugged
time of day
Control does not display Outlet operated by a switch
correct time of day
No water flow display
when water is flowing
(colon doesn't blink)
Control display is frozen Back to back regenerations were
at REGEN TIME REMAINING requested
Control regenerates at
the wrong time of day
Cam gear stalled in
regeneration cycle
Continuous regeneration. Defective switch
Cam gear does not stop
at the end of regeneration.
Control does not
regenerate automatically No electric power at outlet
or when REGEN button is
pressed
Control does not
regenerate automatically refer to "No water flow display
but does regenerate when when water is flowing" in this table
REGEN button is pressed Incorrect hardness and capacity
Possible Causes
Total system capacity was calculated
to be a value greater than 9999
programming mode
No electric power at outlet
Defective transformer
Defective circuit board
Power outage
Bypass valve in "bypass" position
Meter probe disconnected or not fully
connected to meter housing
Restricted meter turbine rotation due
to foreign material in meter
Defective meter probe
Defective circuit board
Power outages
Time of day set incorrectly
Time of regeneration set incorrectly
Motor not operating
Motor runs backward
No electric power at outlet
Broken gear
Defective switch
Binding of cam gear
Water pressure greater than 125 psi
during regeneration
Defective circuit board
Transformer unplugged
Defective motor
Defective switch
If water flow display is not operative,
settings
Defective circuit board
What To Do
• As the water usage continues, the remaining capacity will drop
below 9999, then other values will be shown.
• Wait for 30 seconds until lights begin to alternate.
• Check connection to control and wall outlet.
• Repair outlet or use a working outlet.
• Replace transformer.
• Replace control.
• Use an outlet not controlled by a switch.
• Reset time of day and replace battery.
• Set bypass valve into "service" position.
• Fully insert probe into meter housing.
• Remove bypass valve, free up turbine and flush with clean
water. Turbine should spin freely. If not, refer to the Water Meter
Maintenance section.
• Replace control.
• Replace control.
• Refer to Manual Regeneration section.
• Reset time of day to correct time of day and replace battery.
• Reset time of day to correct time of day. Note PM light.
• Reset time of regeneration. Note PM light.
• Replace motor assembly.
• Replace motor assembly.
• Repair outlet or use a working outlet.
• Replace gear.
• Replace switch.
• Remove foreign object obstruction from valve discs or cam
gear.
• Install pressure regulator to reduce pressure.
• Replace control.
• Replace switch.
• Connect power.
• Repair outlet or use a working outlet.
• Replace motor assembly.
• Replace switch.
• Refer to "No water flow display when water is flowing"
in this table.
• Set new control values. See the Programming the Control
section.
• Replace control.
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