KB 23 / KB 23-UL (E3.1) 02/2019 page 69/87
19. Troubleshooting
Set-point temperature is not
reached after specified time.
Chamber door not properly
Completely close chamber door.
Controller not adjusted, or
adjustment interval exceeded.
Calibrate and adjust controller.
Chamber heating permanently,
set-point not maintained.
Contact BINDER service.
Semiconductor relay defective
Controller not adjusted, or
adjustment interval exceeded.
Calibrate and adjust controller.
Chamber doesn’t heat up.
LED (3a) “Heating active” lit.
Heating element defective.
Contact BINDER service.
Semiconductor relay defective.
Chamber doesn’t heat up.
LED (3a) “Heating active” not lit.
Safety controller has turned off
the chamber. Limit temperature
reached. Safety controller set too
low.
Allow the chamber to cool down
and press the “EXIT” button. Check
temperature set-point and setting of
safety controller. If appropriate,
select suitable limit value.
Safety controller defective.
Contact BINDER service.
Semiconductor relay defective.
Chamber without function.
Check connection to power supply.
Wrong voltage.
Check power supply for voltage of
100-120V or 200-240V.
Chamber fuse has responded.
Check chamber fuse and replace it
if appropriate. If it responds again,
Contact BINDER service.
Nominal temperature exceeded
by 10° due to chamber failure.
Over temperature protective
device (class 1) responds.
Deviations from the indicated
heating-up times.
Chamber fully loaded.
Load the chamber less or consider
longer heating-up times.
Refrigerating performance
Low or no refrigerating
performance.
Ambient temperature above
25 °C / 77°F (chap. 3.4).
Select cooler place of installation.
Compressor not turned on.
Contact BINDER service.
Electro-valves defective.
No or not enough refrigerant.
Too much external heat load.
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