User's Manual

Troubleshooting
3A0260H 31
Troubleshooting
NOTE: Check all possible solutions in the chart
below before you disassemble the system.
Refer to Supply Systems manual for additional trouble-
shooting; refer to Related Manuals on page 3. Also
refer to Error Codes and Troubleshooting, page 33.
PGM Fluid Assembly
Problem Cause Solution
No Inlet Pressure No air pressure on supply system Verify supply system pressure
Leak in supply system Check supply lines and connections
False signal being sent to control Check inlet pressure sensor output;
verify that it corresponds to zero
pressure; replace sensor and/or
amplifier
Leak at PGM drive shaft Replace drive shaft seals
No Outlet Pressure Dispense motor not rotating Refer to Error code section of the
manual; Cycle power and perform
startup
Dispense Off delay set too long Verify Dispense valve delays in
setup screens
Dispense valve solenoid stuck
open
Verify function of dispense valve
False signal being sent to control Check outlet pressure sensor out-
put; verify that it corresponds to zero
pressure; replace sensor and/or
amplifier
High Outlet Pressure Blocked dispense tip Replace dispense tip
Flow rate too high for application decrease flow rate
Dispense valve On delay set too
long
Verify Dispense valve delays in
setup screens
Dispense valve solenoid stuck
closed
Verify function of dispense valve
Dispense pattern too light Supply pressure too low Verify inlet pressure needed for flow
rate
Flow rate too high for application Perform dispense weight verification,
see Calibration procedure on
page 25; Lower flow rate and repeat