Service manual

CULLIGAN HOUSEHOLD & COMMERCIAL CIRCUIT BOARDS
48
Board Diagnostic
To enter the board test mode, turn all the dip switches to the
ON position. All segments of the board will light until either a
key is pressed, an option is changed, or a cam microswitch
changes position. Pressing one of the keys, closing a
microswitch or moving a dip switch to the OFF position will
cause a different segment to light as outlined in Chart 1.
Duplex Parallel Operation
1. Dip switch 6 should be in the ON position.
2. Flashing “REGEN” indicates the softener is regenerating.
3. Solid “REGEN” indicates the softener is scheduled to regenerate.
4. Measure the DC voltage across the pins of connector JP8
on both sides of the cable. Refer to Fig 26.
• When both softeners are in service the DC voltage
should be 5 volts.
• When a softener is regenerating the DC voltage should
be 0 volts.
5. The “B” light will come on when a softener is in regeneration.
ACTION
UP KEY
DOWN KEY
REGEN KEY
STATUS KEY
CLOSE HOMING SWITCH
CLOSE PROGRAM SWITCH
FLOW METER PLUGGED IN
WATER FLOW
DIP SWITCH 2 CLOSED
DIP SWITCH 3 CLOSED
DIP SWITCH 4 CLOSED
DIP SWITCH 5 CLOSED
DIP SWITCH 6 CLOSED
DIP SWITCH 7 CLOSED
DIP SWITCH 8 CLOSED
DIP SWITCH 9 CLOSED
DIP SWITCH 10 CLOSED
SEGMENT
1
2
3
4
5
6
7
9 (Fluttering)
“1111”
“2222”
“3333”
“4444”
“5555”
“6666”
“7777”
“8888”
“9999”
Duplex Alternating Operation
1.Dip switches 4 and 6 should be in the ON position.
2.Measure the DC voltage across pins 1 and 2 of connector JP8 on both sides of the cable. Refer to Fig. 26.
• When one softener is in service and the other softener is in standby, the DC voltage should be ª 5 volts.
• When softener is regenerating the DC voltage should be ª 1 V DC out.
3.The “B” light will come on when a softener is in regeneration.
4.The “B” light will remain on when the softener is in standby.
Chart 1 - Board Display
DDiiaaggnnoossttiicc
FIG 26 - Location of Connector JP8
Failure Mode
The circuit board is equipped to detect a stuck/locked motor or piston. It will supply power to the motor for 30 sec-
onds after detecting the fault. If there is no change in status the control will power down for 90 seconds. The circuit
board will repeat this cycle two more times in attempt to remove or fix the problem. If this is not successful, the
control will permanently shut down and a telephone icon will appear in the display. The telephone icon indicates
that a service call is required to repair the control. To reset the board, after finding the cause of the problem, toggle
a dip switch on the back of the circuit board and reprogram.
JP8