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Product Service Domestic 1-800-522-7658, International 816-333-8811
Chapter 7: Troubleshooting
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. Check pump oil for cloudiness
or particles and change.
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.
