Troubleshootimg
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Cleaning and Maintenance
Cleaning and Maintenance
Cleaning
All surfaces of the unit allow for cleaning with a damp cloth and if required a mild soap
lotion.
Attention:
Damage to the surfaces
All surfaces can be damaged by improper cleaning.
Never use:
▪ Chlorine bleach or any cleaning agent including chlorine
▪ Ammonia
▪ Abrasive cleaning agents such as cleaning rags, scrubbing agents
or any other agents which include metal components
To ensure a stable position clean surface and feet with a damp cloth
and ethanol regularly.
Maintenance
The unit is maintenance-free. Any necessary repair must be performed by an authorized
Heidolph distributor.
Please contact Heidolph Instruments or your local Heidolph Instruments distributor.
Tubes
Tubes are wear parts. Service life of tubes depends on material, rotational speed and
properties of the substance to be fed, e.g. temperature, viscosity, chemical composition,
and pressure.
Service life of tubes used in pumps varies between approx. 50 and 500 hours in use.
➜ Check tubes regularly.
➜ Replace tubes in the event of visible wear.
Multi-channel pump head
➜ Check plastic sleeve over metal bar regularly.
➜ Replace plastic sleeve in the event of visible wear or latest after approx. 500 hours in
use.
Troubleshooting
Possible errors and how to resolve
General
Errors Possible reason Troubleshooting
Unit will not
switch on
Indicators do
not illuminate
No power supply Check size and shape of plug and
compatibility to your electrical socket
Fuse defective Please contact your local Heidolph
Instruments distributor
▪ Regulation defective
▪ Motor defective
▪ Indicator light defective
Please contact your local Heidolph
Instruments distributor
Tube moves Tube not mounted
correctly
Adjust tube mounting (see chapter
„Assembly, Mount tubes”)
Pump is running
but does not
dispense
Wrong tube wall thickness Use adequate tube
(see chapter „Assembly, Mount tubes”)
Gear not working:
coupling of pump head not
aligned
Push pump head to drive as far as it
will go
(see chapter „Assembly, Mount pump
heads”)
Tube bed open
(pump head SP quick
only)
Close tube bed
(see chapter „Assembly, Mount tubes”)
Tube not set correctly
(Hei-FLOW Precision only)
Set correct tube diameter
(see chapter “Hei-FLOW Precision,
additional functions”, section “Set
tube”)
Motor too hot:
overheat protection
activated
Wait a few minutes and let motor cool
down;
pump switches on automatically
Hei-FLOW Advantage, Hei-FLOW Precision
Error message Possible reason Troubleshooting
Control light
rotation key is
blinking
Power cut Start rotation
Hei-FLOW Precision
Error message Possible reason Troubleshooting
---- Invalid values while
calibrating volume
▪ Set rotation rpm according to table
(see chapter “Technical data,
Performance range pump heads”)
▪ Calibrate volume anew
(see chapter “Technical data, Table
tubes”)
If you experience a malfunction which can not be resolved, please contact your
authorized Heidolph distributor immediately.
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