Chapter 7: Troubleshooting
Product Service 1-800-522-7658
32
PROBLEM
CAUSE
CORRECTIVE ACTION
No vacuum/poor vacuum
(cont.)
Ice formed on Cold
Trap lid sealing surface
Defrost and wipe dry.
Secondary Trap
Cannister not fitted
properly
Tighten all connections to and from the
Secondary Trap Cannister.
Secondary Trap Insert
is spent
Replace with new insert.
New Secondary Trap
has moisture in it
Run vacuum pump for 24 hours to
remove moisture.
Recovery of condensate in
Cold Trap is less than
normally expected
Cold Trap is not ON
Check to make sure switch is ON and
condensing unit fan is moving air out
of the rear of the cabinet.
Cold Trap does not cool
down
Turn vacuum pump OFF and allow
Cold Trap to cool for at least 30 min. to
reach temperature.
-55°C temperature can be checked with
a solvent thermometer or digital
thermometer.
Frequent oil change needed
in pump
Secondary Trap insert
is spent
Change insert often.
Cold Trap is not
emptied after each run
and dried
Empty the traps (glass or stainless
steel) after each run and replace.
Vacuum too strong for
chemical
Use a Secondary Trap insert and
diaphragm pump.
Unit starts and shuts off
Latch optical sensor
improperly calibrated
Unplug power cord. Wait 10 seconds.
Plug in power cord.
