Troubleshootimg
Troubleshooting
Malfunctions and troubleshooting
General
Malfunctions
Possible reason
Troubleshooting
Device cannot be
switched on.
Display doesn’t
switch on.
No power supply
Check si e and shape of plug and
compatibility to your electrical
socket
Check circuit breakers
Fuse defective
Replace device fuse (see chapter
“Assembly, Electrical Connections”)
ON/OFF-switch o
Switch on ON/OFF-switch
ON/OFF-switch defective
Please contact your local Heidolph
Instruments distributor
No heating function Connecting cable heating
bath not connected
Connect cable
Heater defective
Please contact your local Heidolph
Instruments distributor
Overheat protection on
Heating bath is lled:
Cool down heating bath, reset
overheat protection (see next
section)
Heating bath is empty:
Contact your local Heidolph Instru-
ments distributor
No rotation
function
Speed controller turned
left as far as it will go
(Hei-VAP Value,
Hei-VAP Value Digital)
Adjust speed
Drive defective
Please contact your local Heidolph
Instruments distributor
Lift not working
Lift is at end of stop
Move lift in opposite direction
Lift is at height stop
Change height stop
Mechanic / Motor
defective
Please contact your local Heidolph
Instruments distributor
No vacuum
Vacuum pump switched o
Switch vacuum pump on
Vacuum valve defective
Replace vacuum valve
Insu cient vacuum
Leakage in system
Check seals and connections
Check joints and grease if necessary
Vacuum pump defective
Refer to manufacturers instructions
No display of vapor
temperature
Vapor temperature sensor
not connected
Connect vapor temperature sensor
Device switches o
(Hei-VAP
Advantage)
Process time activated
Check and turn o timer if necessary
DOMINIQUE DUTSCHER SAS
