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SERVICE INSTRUCTIONS
DRIVE ASSEMBLY:
Remove the valve cover to access the drive assembly.
Disconnect the power source plug (black wire) from the PC board prior to disconnecting the motor plug from the PC board.
The motor plug connects to the two-pin jack on the left-hand side of the PC board. The power source plug connects to the
four-pin jack. The water meter plug (gray wire) connects to the three-pin jack on the far right-hand side of the PC board.
The PC board can be removed separately from the drive bracket but it is not recommended. Do not attempt to remove the
display panel from the PC board. Handle the board by the edges. To remove the PC board from the drive bracket, unplug the
power and motor plugs from the PC board. Lift the middle latch along the top of the drive bracket while pulling outward on
the top of the PC board. The drive bracket has one plastic pin that fits into the hole in the lower edge of the PC board. Once
the PC board is tilted about 45° from the drive bracket it can be lifted off the pin. To reinstall the PC board, position the lower
edge of the PC board so that the hole in the PC board lines up with the plastic pin. Push the top of the PC board towards
the valve. Align the upper hole on the left hand side of the PC board with the pin and push in until the PC board snaps under
the middle latch, weave the power wire into the holders and reconnect the motor and power plugs.
The drive bracket must be removed to access the drive cap assembly and pistons or the drive gear cover. It is not
necessary to remove the PC board from the drive bracket to remove the drive bracket. To remove the drive bracket start
by removing the plug for the power source. Unweave the wire from the side holders. Two tabs on the top of the drive back
plate hold the drive bracket in place. Simultaneously lift the two tabs and gently ease the top of the drive bracket toward your
body. The lower edge of the drive bracket has two notches that rest on the drive back plate. Lift up and outward on the drive
bracket to disengage the notches.
To reassemble seat the bottom of the drive bracket so the notches are engaged at the bottom of the drive back plate. Push
the top of the drive bracket towards the two latches. The drive bracket may have to be lifted slightly to let the threaded
piston rod pass through the hole in the drive bracket. Maintain a slight engaging force on the top of the drive bracket while
deflecting the bracket slightly to the left by pressing on the side of the upper right corner. This helps the drive gears mesh
with the drive cap assembly. The drive bracket is properly seated when it snaps under the latches on the drive back plate. If
resistance is felt before latching, then the notches are not fully engaged, the piston rod is not in the hole, the power wire is
jammed between the drive bracket and the drive plate, or the gear is not engaging the drive cap assembly.
To inspect drive gears, the drive gear cover needs to be removed. The drive gear is held in place on the drive bracket by
three clips. The largest of the three clips is always oriented to the bottom of the drive bracket. Before trying to remove the
drive gear cover, the drive bracket must be removed from the drive back plate. The drive gear cover can be removed from
the drive bracket without removing the PC board. Simultaneously, push in and down on the large clip at the bottom and the
clip on the left-hand side of the drive bracket behind the PC board. Keep your other fingers behind the drive gear cover so
the drive gears do not drop on the ground.
Replace broken or damaged drive gears. Do not lubricate any of the gears. Avoid getting any foreign matter on the
reflective coating because dirt or oils may interfere with pulse counting.
The drive gear cover only fits on one way, with the large clip oriented towards the bottom. If all three clips are outside of the
gear shroud on the drive bracket the drive gear cover slips easily into place.
The drive bracket does not need to be removed from the drive plate if the motor needs to be removed. To remove the
motor, disconnect the power and motor plugs from the jacks on the PC board. Move the spring clip loop to the right and
hold. Rotate the motor at least a ¼ turn in either direction before gently pulling on the wire connectors to remove the motor.
Pulling directly on the wire without rotating the motor may break the wires off the motor.
Replace the motor if necessary. Do not lubricate the motor or the gears. When reinstalling the motor gently turn the motor
while inserting so that the gear on the motor meshes with the gears under the drive gear cover and the small plastic plug
engages one of the slots on the motor housing. Reconnect the motor plug to the two pronged jack on the lower left-hand
side of the PC board. If the motor will not easily engage with the drive gear when reinstalling, lift and slightly rotate motor
before reinserting.
Replace the valve cover. After completing any valve maintenance, press and hold
NEXT
and
REGEN
buttons for 5 seconds
or unplug power source jack (black wire) from the circuit board and plug back in. This resets the electronics and establishes
the home position for softening. Reset the time of day.
