Biddle SensAir, Manual

Page: 76 / 208

E
RRORS
C
OMFORT
A
IR
C
URTAIN
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4.4 Remedying errors without an error message
If you suspect an error but no error message is displayed:
1. Referring to the preceding sections, check whether you
can easily resolve the problem.
2. Try to resolve the problem using the table below. Techni-
cal expertise is needed for this.
P
ROBLEM
P
ROBABLE CAUSE
W
HAT TO DO
The unit does not
respond to
changes. For more than 10 hours, there has
been no connection with the con-
trol panel. The unit is operating in a
safe mode. If the control panel display comprises part of the system:
Restore the communication with the control panel.
See error E1.
If the system works without control panel:
Set the system to operate without a control panel.
See
2.7.1 Special points regarding the control panel.
The IR sensor is wrongly adjusted. Check the adjustment of the IR sensor.
The control panel
works normally
but the unit does
not respond. The unit is being operated by a sig-
nal from an external control. 1. Check functions 60. Function of inputs and
Release delay input 1 in the menu Configuration .
The fans may be switched off if
there is only a small difference in
temperature between indoors and
outdoors. This is not an error. If this is considered a problem,
the value of the function can become
42. Fan OFF
temperature .
The power supply to the fans is cut. 1. Check the transformer fuse.
2. Check the wiring between the transformer and
the fans.
3. Replace the transformer.
The display flick-
ers The length of the control cable
between the control panel and the
first unit is too great Remove excessive length of cable