Binder KBF 115, Operating Manual

Page: 129 / 155

KBF + KMF (E6) 07/2017 page 129/155
Fault description Possible cause Required measures
Refrigerating performance
Low or no refrigerating perfor-
mance.
Ambient temperature > 25 °C / 77
°F (chap.3.4).
Select cooler place of installation.
Combination of tempera-
ture/humidity values not in the
optimum range (see temperature
humidity diagram, Figure 19).
Select combination of tempera-
ture/humidity values in the opti-
mum range (chap. 17).
Compressor not turned on.
Contact BINDER service. Electro-valves defective.
No or not enough refrigerant.
Too much external heat load. Reduce heat load.
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.
Low or no dehumidification.
Capillary tube blocked
Contact BINDER service.
Not enough refrigerant.
Humidity control turned off.
Turn on humidity control (chap.
6.3, 7.3).
Icing at the evaporator plates.
Set-point was too long below
ambient temperature.
Defrost the unit (chap. 18).
Condensation at the walls of the
inner chamber.
Combination of tempera-
ture/humidity values not in the
optimum range (see temperature
humidity diagram, Figure 19)
Select combination of tempera-
ture/humidity values in the opti-
mum range (chap. 17).
Set-point was too long below
ambient temperature, icing in the
preheating chamber.
Defrost the chamber (chap. 18)
Low humidity and temperature
accuracy
Fan speed has been reduced. Set fan speed to 100%.
Controller
No chamber function
(dark display).
Display in standby mode. Press on touchscreen.
Main power switch turned off. Turn on the main power switch.
Menu functions not available.
Menu functions not available with
current authorization level. Log in with the required higher
authorization.
No access to controller Password incorrect. Contact BINDER service.
Chart recorder function: meas-
ured-value memory cleared; in-
formation lost. New setting of storage rate or
scaling (minimum and/or maxi-
mum) (chap. 16.2). Change the storage rate or scal-
ing ONLY if the previously regis-
tered data are no longer required.
Controller does not equilibrate to
setpoints entered in Fixed value
operation mode
Controller is not in Fixed value
operation mode. Change to Fixed value operation
mode.
Controller does not equilibrate to
program set-points.
Controller is not in program oper-
ation mode, or program delay
time is running. Start the program again. If ap-
propriate, wait for the program
delay time.
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.