Faults; Safety Instructions; Resolving Simple Problems - Biddle CA Series User's And Installer's Manual

F
AULTS
6

. . Faults

6.1

Safety instructions

6.2

Resolving simple problems

P
ROBLEM
The unit does not work, and the
control panel display is blank.
One or more keys do not work.
The air curtain is switched Off
but is still working.
The unit blows out cold air
(without fault message).
46
d
Danger:
Work on the unit's interior shall be performed by
qualified technical staff only.
w
Warning:
Before opening the unit, follow the safety instruc-
tions in section 1.4.
If you suspect a fault, first try to resolve the problem using the
below table. You need not be an expert for this.
L
IKELY CAUSE
If the LED is lit: the unit is in pause
mode.
If the LED is not lit: no power is
supplied to the control panel.
If the display only shows the room
temperature: the air curtain is
switched off.
If the display reads or
unit is controlled by an external
control.
Only electrically-heated models: unit
is cooling down automatically.
If the display does not read the
symbol: heating is disabled.
C
OMFORT
W
HAT TO DO
Exit the pause mode by pressing
the key.
Check the power supply:
• plug in power point;
• isolation switch;
• unit live.
Switch the air curtain On using
the key.
: the This is not a fault. Operation is
limited by the input signal from
the external control.
This is not a fault. Normally, the
unit will automatically shut down
within 10 minutes.
Enable heating using the
A C
IR URTAIN
key.