Labconco Gel Dryer 4330150 - Manual (Page 20)

TROUBLESHOOTING
20
PROBLEM CAUSES CORRECTIVE
ACTION
Heater and vacuum pump
Gel Dryer fuse Replace fuse with the
controls don’t work blown proper replacement
Circuit breaker Reset circuit breaker
tripped
Heater control works but Vacuum pump Turn on vacuum
vacuum pump doesn’t switch in “off” pump switch
Vacuum pump Replace fuse with the
fuse blown proper replacement
Vacuum seal doesn’t
Vacuum leak Check connection
form, or forms slowly
Insufficient vacuum Vacuum pump should
pump capacity have a capacity of
50 liters/minute or
more
Support screen bent Ensure that screen
or damaged lays flat
Silicone rubber Moisten the surface of
sheet and platen dry the rubber sheet and
platen with water
before applying
vacuum.
Rubber sheet/platen Inspect the surfaces
surface damaged and replace if
necessary
Gel cracks/shatters
Insufficient drying Increase the drying
time time
Insufficient vacuum The vacuum source
should have a
minimum free air
displacement of 50
liters/minute and
develop a minimum
vacuum of 25 in. Hg.