Chapter 7: Troubleshooting
Product Service 1-800-522-7658
25
Original instructions
Other corrective actions for potential problems are as follows:
PROBLEM
CAUSE
CORRECTIVE ACTION
Unit will not operate
Unit not connected to
electrical power
Connect unit to proper electrical
receptacle.
Circuit breaker blown
Correct electrical problem and reset circuit
breaker by pressing button.
Lid open
Close lid.
Excessive vibration
Sample tubes not located
symmetrically in rotor
Reposition sample tubes.
Sample odor in lab
Vent hose exhausting into
lab area
Redirect hose to fume hood.
Evaporation rate is
reduced
Heater inoperable
Contact Labconco.
Vacuum pump failure
Check pump.
Obstruction in hose
Remove obstruction or replace hose.
Lack of adequate vacuum See below.
No vacuum/poor vacuum
Pump not on
Turn on pump.
Control valve open
Check control valve.
Leaks in lines or
connectors or gasket
Locate and repair.
Foreign material on lid
gasket
Clean gasket and lid.
Pump is not functioning
properly
Check pump by locating vacuum gauge
closer to pump and close off rest of system.
If pump is faulty, seek authorized service
or replace pump.
Cold Trap or
Concentrator gasket is
not sealing properly
Check gasket for cleanliness. Adjust
gasket as needed.
Cold Trap lid not seated
Hold lid down until vacuum is initiated.
Ice formed on Cold
Trap lid sealing surface
Defrost and wipe dry.
