Heidolph LABOROTA 20 eco - Manual (Page 69)

69
E
TROUBLESHOOTING
 Master switch won’t light when turning ON
check power cord
master switch broken (call service)

Poor vacuum pressure
inspect gaskets and fittings
check ground fittings, coat with vacuum grease, as required
PTFE seal installed the wrong way. Sealing lip needs to point towards drive head
check line to vacuum pump
 Heating bath lift won’t travel up
also refer to safety functions section
lift mechanism broken
upper limit switch broken
 Heating bath lift won’t travel down
lift mechanism broken
lower limit switch broken

No rotation
also refer to safety functions section
motor broken

Fault message "Er1" on the display Bath Temp: Sensor short circuit, temperature sensor
faulty

Fault message "Er2" on the display Bath Temp: Sensor broken, temperature sensor
faulty

LED Stop
–Mode, LED Flask Support, LED Rotation Stop or LED Overheat Prot.
Illuminates, refer to safety functions (page 63)
Whenever facing a problem that cannot be fixed by the above information, call your
authorized Heidolph Instruments dealer right away.
WARRANTY, LIABILITY & COPYRIGHT
Warranty
Heidolph Instruments provides a three-year warranty on the products described here (with
the exception of glass and consumable parts) if registered with enclosed warranty card or via
internet (www.heidolph.com). Warranty starts with the date of registration. Without
registration warranty starts according to serial number. This warranty covers defects in
materials and workmanship.
Transit damage is excluded from this warranty.
To obtain such warranty service, contact Heidolph Instruments (phone: +49
– 9122 - 9920-
68) or your local Heidolph Instruments Dealer. If defects in material or workmanship are
found, your item will be repaired or replaced at no charge.
Misuse, abuse, neglect or improper installation are not covered by this warranty promise.
Alterations to the present warranty promise need He
idolph Instruments’ consent in writing.