Compac C4000 User Manual

Fault Finding
High Current Triac Option
Compac Industries Ltd.
Page 69
www.compac.co.nz
Replace C4000 PCB if fault not found
Motor running all the time
Is Solid State Relay LED on?
Yes - Check Nozzle Switch is releasing
No - Select a spare High Current Solid State Relay.
Replace C4000 PCB if fault not found
Solenoid not energising
Is Solid State Relay LED on?
Yes - Check Triac Fuse F2
Check all Solenoid connections
Check Solenoid
Select a spare Low Current Solid State Relay if the above checks are okay.
No - Check Nozzle Switch operation.
Replace C4000 PCB if fault not found
Preset Display Digit flashing
Is the respective Preset Button stuck in?
Yes - Remove grit if any and check spacing of keypad to fascia gives good key
operation.
Check wiring & condition of display plugs.
No - Replace keypad. If problem still exists, replace preset PCB.
Secure PIN Pad - Display Off
Is PIN pad backlighting on?
Yes - Check 5V and TX wires for continuity.
NO - Check the 0V wire for continuity and that the plug is secure.
Replace Secure PIN pad if fault is not found.
Secure PIN Pad not accepting
numbers
Is PIN pad display on?
Yes - Check RX wire for continuity
No - Check cable and plug.
If no fault found, replace the Secure PIN pad.
Star Printer not working
Is power on?
Yes - Check connection of comms cable
Check dip switch settings (refer Printer Set-up (see page 40))
Carry out self test (refer Printer Set-up (see page 40))
No - Check cable and plug.
If no fault found, contact Compac Help Desk.

Compac C4000 Specifications

General

Brand	Compac
Model	C4000
Category	Control Unit
Language	English