Cornelius pbd175 - Troubleshooting - Valve Activity; No Valve Activity Diagnosis

PBD175 (Spire 3.0) Service Manual
© 2015-2016, Cornelius Inc. - 51 - Publication Number: 620062609SER
No Valve Activity
No Valve
No
Yes
Check E-Box
Power Relay Coil(12 VDC)
Is Red LED on
Flashing?
Activity
Valve Board
Are Green LEDs on
Replace
USB Cable
Disconnect Power
Cable from E-Box & Check
30 VDC Supply
Valve Board Flashing?
Yes
Reboot Computer
No
Replace Computer
or Valve Board
Yes
Done
No
Check Valve Board
Power Cable for
Yes
Replace
Valve Board
30 VDC
No
Yes
Check E-Box Fuse
30 VDC Power Supply
Blown?
No
OK?
No
Yes
Replace the 30 VDC
Power Supply
& Relay Closed to Power 30 VDC
Pwr Supply & 19 VDC Pwr
Supply OK?
Yes
No
Replace the Relay
Check 30 VDC
Power Cable
OK?
No
Replace the Cable
Yes
Replace Fuse &
Reconnect Power to 30 VDC
Power Supply - Blown
Fuse?
No
Done
Yes
Remove 4 Valve
Cables from the Valve Board
& Replace Fuse
Blown Fuse?
Yes
Replace Valve Board
No
Plug in 4 Valve
Cables one at a time.
Blown Fuse?
No
Measure each
Solenoid Coil to Locate. Bad
Coil (Should be ~ 9 ohms)
No
Replace Defective
Solenoid Coil
Yes
Check Harnesses
for Pinched or Shorted
Wires - OK?
Yes
No
Replace Harness