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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. Table 5 lists
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.
The water conditioning system is designed and
manufactured for efficient, low maintenance service.
However, if problems do occur, this section provides a
list of possible causes and solutions. The control is
easily serviced. The control module can be quickly
replaced or adjustments can be made at installation.
Refer to the exploded views of the
Replacement Parts
section of this manual for specific parts.
IMPORTANT:
Service procedures that require the
water pressure to be removed from the system are
marked with a
!
after the possible cause. To remove
water pressure from the system, put the bypass valve
or three-valve bypass into the bypass position and
open the backwash drain valve (the sixth valve back
from the control) with a screwdriver, see Figure 11.
Restore system water pressure when the service work
is completed.
Refer to Table 6 to identify the cause of a problem.
Table 5 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 Home switch closed
when it should be open.
Camshaft has been
manually rotated during a
regeneration.
Faulty motor.
Faulty motor drive.
Faulty switch.
Press any key to silence the alarm.
(Note: Alarm automatically clears at
“TIME OF REGEN.”)
Replace control.
Replace control.
Replace control.
Err3 Home switch open when
it should be closed.
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 control.
Replace control.
Replace control.
Err4 Improper control settings
.
One or more settings out of
the allowable range.
Hardness: Adjust range: 3 to 250
grains per gallon (30 to 2500 mg/L).
Capacity: Adjust range: 0.1 to 140.0
kilograins (.01 to 14 kilograms).
Refill control: Adjust range: 1 to 99
Brine draw value: Adjust range per
Table 4.