13
TriScroll 800 Inverter Vacuum Pump
DRAFT 10/9/14
Troubleshooting
Table 9 contains a list of possible problems, their probable causes, and corrective actions.
Table 9 Troubleshooting Chart
Problem Probable Cause Corrective Action
Pump won’t start P1 interlock missing Plug in connector (provided).
Wrong input voltage Plug inverter into 200-240 VAC 50/60
Hz.
Circuit breaker open Close breaker.
Identify cause of overload.
Motor thermal protector open Allow motor to cool.
Identify cause of overload.
Main fuse open Inspect and replace fuse (Type H, 10 A,
250 V (Littlefuse 0216010.HxP or
equivalent)).
Wiring loose or cut Repair or replace.
Excessive voltage drop Check size and length of power supply
cable.
Defective motor Inspect. Contact Agilent.
Poor ultimate pressure System leak Locate and repair leak.
Water in pump Flush pump with air or dry nitrogen.
Gas ballast plugged Replace breather vent. Contact Agilent.
Solvent in pump Flush pump with air or dry nitrogen.
Install trap or filter.
Seals worn out Replace tip seals. (Table 10 and Table
11 on page 14 list maintenance kits and
service options.)
Poor conductance to pump Replumb with shorter and/or larger
diameter tubing.
Pump makes hammering noise Pump overheated Check ambient temperature.
Check ventilation to pump.
Debris in pump Check inlet screen.
Flush pump.
Disassemble pump and inspect. (Table
10 and Table 11 on page 14 list
maintenance kits and service options.)
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