User's Manual

309962 9
Troubleshooting
Some solutions require disassembling the gun. Always relieve system pressure and disconnect the electrical cable
before performing these procedures.
WARNING
To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow
the Pressure Relief Procedure on page 7.
See PARTS section (pages 14-17) for the parts that need to be serviced.
Problem Cause(s) Solution(s)
Material leaks from front of Seat or packing is worn Replace seat (18 or packing (20).
gun
Obstruction inside gun
Worn needle
Remove seat (18). Check and replace if
necessary.
Check and replace needle (15a), if
necessary.
Material leaks from back of
gun
Needle seal or packing is worn Replace seals (15c) or packing (15d).
Gun does not shut off Needle or adapter is worn Replace needle (15a) or adapter (19).
Spring broken or not installed correctly Check and replace, if necessary,
spring (16).
Obstruction inside gun Remove seat (18). Check and replace if
necessary.
Gun does not heat material Loose heater wires Check and reconnect wire connections.
Loose sensor wires Check and reconnect wire connections.
Heater unit failed Replace heater.
Sensor failed Replace sensor.
Temperature controller failed Replace temperature controller.
No power to heating circuitry Apply power to heating circuitry.