Owner manual

Troubleshooting 5-9
5.5.5 Fluid Heaters
Table 5-7 describes some minor problems related to fluid heater operation, offers possible causes,
and suggests some recovery procedures. Refer to 3.9 Fluid Heaters for additional information.
Table 5-7 Needle Heater Troubleshooting
Symptom Possible Cause Recovery
1. External Type Heater does
not heat.
A. There is a loose electrical
connection.
Make sure all connections are
secure.
B. Heater is not active. Activate the appropriate
heater loop in Fluidmove as
specified in 4.6.1 Needle Heater
Operation.
C. Heater fuse on the Dispense
Head Controller is blown.
Call a trained service technician
to check and, if necessary,
replace the fuse.
D. Heater or RTD is damaged
or defective.
Heater must be replaced. Call a
trained service technician.
2. Built-in heater in the DJ-9000
Series dispensing valve does
not heat.
A. There is a loose electrical
connection.
Make sure all connections are
secure.
B. Heater is not active. Activate the appropriate
heater loop in Fluidmove as
specified in 4.6.1 Needle Heater
Operation.
C. Fuse inside the dispensing
valve is blown.
Call a trained service technician
to check and, if necessary,
replace the Valve.
D. Heater or RTD is damaged
or defective.