TTL air curtain systems - Controller TWICS
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12. Malfunctions (cont.)
12.1 Fault visualization (cont.)
A fan fault/motor fault is signalized by a red LED below the symbol „Fan fault“. The thermal contacts of the fans
are connected in serie (common fault message). In case of a fan/motor fault please contact your service compa-
ny or the TTL service. Remedy the cause of the error and unlock via the OFF(0) key.
12.2 Fault clearance
Fault
Possible cause
Remedy
The air curtain systems cannot
be switched on; no function is
detectable.
The green LED on the OFF key
(0) signalising readiness of the
system is not illuminated.
-No mains voltage available
-Ensure power supply.
Should fuses be defective, find the cause and
remedy it prior to switching it on again
Air curtain system is operating,
but does not provide the requi-
red air volume.
-Fan speed too low
-Air filter contaminated
-Select a higher speed stage
-Check for contamination of the air filter,
replace it if necessary
Air curtain system is in operati-
on, exiting air is (too) cold.
-No heating system available
-Existing solenoid valve is de
fective or closed
-Existing thermostatic control
valve is defective
-Switch on heating or ensure heating medium
supply
-Check the solenoid valve and control system
-Check the thermostatic control valve
-Set the control to the WINTER mode setting
Air curtain unit signaled frost
alert
-really occurring tempera-
tures at the heating battery
are lower then +5 °C, com-
bined with a fault of heating
system or incorrect operation
by switching ON of SUMMER
mode (thereby the seloid valve
will be close)
-Remedy the interruption in heating system
-Check the switching status SUMMER/WINTER
mode
-Quit frost alert in acc. to adjustment in
menu 3.3 (Basic settings -
Aut.start after frost)
It is advised to check the complete air
curtain unit for possibly emission of
water after a frost alert and a following
normalization of heating supply!
Note: The electronic controller TWICS prevents the uncontrolled switch-on of
the air curtain device after a main voltage failure accordance to EU-MR 2006/42/
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For restart the controller TWICS is to switch-off with OFF(0) key and following
to restart by preselect of a mode range by pressing a button.
Fan fault
To avoid a demage don‘t set the air curtain system in operation
without consultation of the manufacturer TTL.
