Binder KBF-S - Simple Troubleshooting

KBF-S / KBF-S-UL (E6) 11/2021 page 70/95
23.4 Simple troubleshooting
Defects and shortcomings can compromise the operational safety of the chamber and can lead to risks and
damage to equipment and persons. If there are is a technical fault or shortcoming, take the chamber out of
operation and inform BINDER Service. If you are not sure whether there is a technical fault, proceed ac-
cording to the following list. If you cannot clearly identify an error or there is a technical fault, please contact
BINDER Service.
Only qualified service personnel authorized by BINDER must perform repair.
Repaired chambers must comply with the BINDER quality standards.
Fault description
Possible cause
Required measures
General
Chamber without function.
No power supply.
Check connection to power sup-
ply.
Check whether the chamber is
turned on at the main power
switch.
Wrong voltage.
Check power supply for correct
voltage (chap. 4.3).
Chamber fuse has responded.
Check chamber fuse and replace
it if appropriate. If it responds
again, contact BINDER service.
Controller defective.
Contact BINDER service.
Nominal temperature exceeded
by 10°C due to chamber failure.
Over temperature protective de-
vice (class 1) responds.
Heating
Chamber heating permanently,
set-point not maintained.
Controller defective.
Contact BINDER service.
Semiconductor relay defective.
Controller not well adjusted, or
adjustment interval exceeded.
Calibrate and adjust controller.
Chamber doesn’t heat up.
Pt 100 sensor defective.
Contact BINDER service.
Heating element defective.
Semiconductor relay defective
Chamber doesn’t heat up when
turned on.
Safety controller responds.
Inner chamber temperature has
reached the safety controller
value. Safety controller set too
low.
Acknowledge the alarm on the
controller. Check temperature
setpoint setting. If appropriate,
select suitable safety controller
value (chap. 10.2).
Safety controller (chap. 10.2) de-
fective.
Contact BINDER service.
Refrigerating performance
Low or no refrigerating perfor-
mance.
Ambient temperature above
25 °C / 77 °F (chap.3.4).
Select cooler place of installation.
Combination of temperature/hu-
midity values not in the optimum
range (see temperature humidity
diagram, Figure 18).
Select combination of tempera-
ture/humidity values in the opti-
mum range (chap. 19).
Compressor not turned on.
Contact BINDER service.
Electro-valves defective.
No or not enough refrigerant.
Too much external heat load.
Reduce heat load.