Lync WQ-SF
SECTION 5: MAINTENANCE
L- OMM-004_A
•
2/23/2022
Technical Support • (800) 433-5654 • Mon-Fri, 8 am - 5 pm EST
45
of
54
system operation. Or, if more than one unit has been queued for regeneration, then the
queue is rebuilt according to which one communicates first.
Message Displayed
Causes for Error
Correction
Error Valve Count Mismatch
Number of NXT2 detected does
not match selected system type
in Master Programming
Push correct valve settings in
Master Settings
Motor Stall
No Changes Detected in the
Optical Sensor for 6 Seconds
The motor is on but no encoder
pulses are detected within a
given duration while homing
Check the P11 connection and
trigger a manual regeneration
Motor Run-On
No CAM Switch Change
Detected
The motor is on but no encloder
pulses are detected or CAM
Switches change state within a
given duration
Verify correct valve type is
chosen. Trigger a manual
regeneration
Optical Sensor
Undesired change detected by
the Optical Sensor
The motor is off but additional
encoder pulses are detected
Trigger a manual regeneration
Over-Current Motor Over
Current is Detected
Motor current exceeds
thresholds
Trigger a manual regeneration
Flow Meter Error Continuous
Flow Detected
Flow exceeded specified
threshold for a specific duration
Trigger a manual regeneration
Error Send/Receive Failure
During a setting push, a packet
was missing
Reconnect communication
cables and push setting in
Master Settings
Error System Type Mismatch
on Network
The system type among
connected units does
not match
Push correct system settings in
Master Settings
Microcontroller Error
Calibration or manufacturing
test was not performed
Contact your Pentair
representative
100 Days Without Regen
100 Days have expired without
a regeneration
Trigger a manual regeneration
4.2.3 Troubleshooting 2900 Valve
Problem
Cause
Correction
Water conditioner
fails to regenerate
Electrical service to unit has been
interrupted
Assure permanent electrical service
(check circuit breaker, GFCI fuse,
plug, pull chain, or switch)
Controller is defective
Replace controller
Power failure
Reset time of day
Softener delivers
hard water
By-pass valve is open
Close by-pass valve
No salt is in brine tank
Add salt to brine tank and maintain
salt level above water level
Injector screen plugged
Clean injector screen
Insufficient water flowing into brine tank
Check brine tank fill time and clean
brine line flow control if plugged
Hot water tank hardness
Repeated flushing of the hot water
tank is required