BINDER KBF LQC 240 - Manual (Page 99)

KBF LQC (E5.3) 07/2014 page 99/114
Fault description
Possible cause Required measures
Humidity
Humidity fluctuation:
Control accuracy of ± 3 % r.F. is
not reached.
Door gasket defective. Replace door gasket.
Door opened very frequently. Open doors less frequently.
Humidity fluctuation, together
with temperature fluctuation > 1
°C with a set-point ca. 3 °C above
ambient temperature.
Place of installation too hot.
Select cooler place of installation
or contact BINDER service.
No or too low dehumidification.
Capillary tube blocked
Contact BINDER service.
Not enough refrigerant.
Icing at the evaporator plates.
Set-point for a long time below
ambient temperature.
Defrost the unit (chap. 14).
Condensation at the walls of the
inner chamber.
Combination of tempera-
ture/humidity values not in the
optimum range (see temperature
humidity diagram, Figure 22)
Select combination of tempera-
ture/humidity values in the opti-
mum range (chap. 13).
Set-point for a long time below
ambient temperature, icing in the
preheating chamber.
Defrost the unit (chap. 14)
Bad humidity and temperature
variation
Fan speed has been reduced. Set fan speed to 100%.
Notification or alarm message
“HUMID SYSTEM” on the con-
troller.
Notification or error of the humidi-
ty system.
See chap. 12.2.
Controller
No unit function
(dark display).
Display mode “Standby” active. Press any controller key.
Main power switch turned off. Turn on the main power switch.
No entries to controller keypad
possible. Notification “KEY
LOCK” is displayed
Keyboard locking (option) acti-
vated.
Unlock keyboard locking (chap.
17.7).
No access to menu “User set-
tings”“.
User code incorrect. Contact BINDER service.
Wrong temperature alarms, dis-
turbance of temperature accuracy Temperature unit changed to °F.
Set temperature unit to °C (chap.
6.4).
Chart recorder function: meas-
ured-value memory cleared, in-
formation lost.
New setting of storage rate.
Change the storage rate ONLY if
the previously registered data are
no longer required (chap. 7).
Controller does not attain set-
points entered in Manual Mode.
Button EXIT or AUTOMATIC has
been hit: Unit is in Idle Mode.
Change to Manual Mode (chap.
8).
Controller does not attain pro-
gram set-points.
Button EXIT or AUTOMATIC has
been hit: Unit is in Idle Mode.
Start the program again (chap.
10.9).
Program duration longer than
programmed.
Tolerances have been pro-
grammed.
For rapid transition phases, do
NOT program tolerance limits in
order to permit maximum heating,
refrigerating, or humidification
speed.
Program stops one section too
early.
Program line is incomplete.
When programming, define the
end value of the desired cycle by
adding an additional section with
a section time of at least one
second.