Troubleshooting
6-3
Part 237478_03
E 2012 Nordson Corporation
Troubleshooting Guide
Table6‐1 lists typical gun faults, their probable causes, and corrective
actions to take.
NOTE: The Nordson Hose/Gun Diagnostic Device enables precise and
complete heater and RTD troubleshooting for RTD‐controlled FP‐200 guns.
The device enables you to quickly accomplish gun RTD and heater
troubleshooting without removing the guns from the hoses. Contact your
Nordson representative for more information.
Table 6‐1 Troubleshooting Tables
Problem Possible Cause Corrective Action
1. No adhesive flow
from gun module
Adhesive level low Check level. Add adhesive if needed.
No input power Connect power to applicator and
associated equipment. Make sure that
all circuit breakers are switched ON.
Applicator temperature setting too low Adjust setting (refer to applicator product
manual).
Hose temperature controller setting
too low
Adjust setting (refer to applicator product
manual).
Gun temperature controller setting too
low
Adjust setting (refer to applicator product
manual).
System not at operating temperature Verify if READY light is on and adhesive
or sealant is molten. If not, allow unit to
reach operating temperature.
Insufficient air pressure to piston
pump model
Verify air pressure by doing filter flush
(refer to applicator product manual).
Applicator motor not operating Verify motor operation (refer to applicator
product manual).
No air supply to gun or low air
pressure
Check air supply.
Hose clogged Clean or replace hose (refer to hose
product manual).
Continued...