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960 Control Troubleshooting
Alarms
The Model 960 continuously monitors itself and sounds an
alarm if it detects something wrong. The alarm is a beep
that is on for one second and then off for nine seconds.
When the alarm sounds, the display shows the letters “Err”
with a number from 1 to 4. The table below lists the Err
numbers, a description of each error, the cause of the error,
and the solutions. To silence the alarm, press any button
on the control. If the error still exists, the control will go
back to the alarm condition after 30 seconds.
Model 960 Alarms
Indication Description Cause Solution
Err1 Electronics Failure Control settings need
reprogramming.
Press any key to load default values. Refer to
“Programming the Model 960 Control”.
Err2 Improper start of
regeneration (limit switch
closed when it should be
open).
Valve camshaft has been
manually rotated during a
regeneration.
Valve camshaft has been
manually rotated out of
“regeneration complete”
position.
Faulty motor.
Faulty motor drive.
Faulty switch.
Press any key to silence the alarm. (Note:
Alarm automatically clears at “TIME OF
REGEN”.)
The control will turn the motor on and drive
the camshaft to the proper location.
Replace the control.
Replace the control.
Replace the control.
Err3 Improper finish of
regeneration (limit switch
open when it should be
closed).
Valve camshaft has been
manually rotated out of
“regeneration complete”
position.
Faulty motor.
Faulty motor drive.
Faulty switch.
The control will turn the motor on and drive
the camshaft to the proper location.
Replace the control.
Replace the control.
Replace the control.
Err4 Improper control settings (one
or more settings out of the
allowable range).
One or more settings out of the
allowable range.
Hardness: Adjust range: 3 to 250.
Capacity: Adjust range: 0.1 to 140.0.
Refill control: Adjust range: 1 to 99.
Regenerant draw value: Adjust range per
Table 4.
Problem Possible Cause Solution
1. Capacity display stays at 9999
even through there is water
usage.
a. Total system capacity was calculated to be
a value greater than 9999.
A. As the water usage continues, the remaining
capacity will drop below 9999 and then other
values will be shown.
2. Timer beeps when left arrow
button is pressed.
A. Button is only active in the programming
mode.
A. Refer to the Programming section.
3. Timer does not respond to
REGEN button.
A. Button is not active in the programming
mode.
A. Refer to the Regeneration section.
4. Timer does not display time of
day.
A. Transformer is unplugged.
B. No electric power at outlet.
C. Defective transformer.
D. Defective circuit board.
A. Connect power.
B. Repair outlet or use working outlet.
C. Replace transformer.
D. Replace control.
5. Timer does not display correct
time of day.
A. Outlet operated by a switch.
B. Power outages.
A. Use outlet not controlled by switch.
B. Reset Time of Day.