74 THERMEX
CENTRALVENTILATION VILLA II
M 536991040901102019
EN
gLI
sH
»
T
R
OUBLE
SHOO
TING
O
VER
VIEW
1 2 3 4
ON
DIP
1 2 3 4
ON
DIP
AC / DC converter is used to control the motor.
Default setting.
If Centralventilation Villa II is to be used with a motor where it is necessary to use an AC / DC converter, the PCB must be set for this use on dip
switch 4.
TROUBLESHOOTING OVERVIEW
PROBLEM
POSSIBLE CAUSE
SOLUTION
The remote control does not work
The protective film covering the batteries has not
been removed.
Note: The red diode on the remote control does not
illuminate when the buttons are activated.
Remove the protective film
The remote control battery is flat.
Note: The red diode on the remote control can still illu-
minate brightly even though the remote control bat-
teries have insufficient power for the control function.
Replace the two CR2032 batteries in
the remote control
The distance between the remote control and the
control is too long, or there are other impediments
between the PCB and the remote control.
Note: The red diode on the remote control lights up
when the buttons are enabled.
Straighten the antenna on the PCB and
position the end of the antenna outside
the control box.
The engine buzzes and either turns very
slowly or not at all.
The speed for the basic ventilation mode has not been
set as specified by the motor manufacturer.
Set the motor speed for the basic ven-
tilation mode.
The valve on the cooker hood does not
open/close when the cooker hood is acti-
vated/deactivated.
There is a delay on the valve control. It takes up to 1
min. for the valve to fully open/close.
The valve closes when the cooker hood or
remote control is activated.
F1 and F2 have been reversed when connecting the
valve motor.
Connect the valve motor correctly.
There is a lot of noise from the motor.
The temperature of the transformer on the PCB has
exceeded 80°C, and the PCB has, therefore, switched
to bidirectional triode thyristor control.
The diode on the PCB flashes purple.
The PCB will automatically return to
transformer control when the tempera-
ture of the transformer drops to below
60°C.
The system does not work
The PCB is connected incorrectly and the phase and
null connections have been reversed.
The diode on the PCB flashes red (approximately two
flashes per second).
Connect the PCB correctly.
The PCB has overheated so that the temperature ex-
ceeds 100
°
C.
The diode on the PCB flashes red (approximately one
flash per second).
The PCB is automatically turned on
again when the temperature falls to
below 60°C.
The PCB has been overloaded and the PCB’s fuses
have blown.
Replace the fuse and check the connec-
tion to ensure that the PCB is not over-
loaded again.
The PCB has been overloaded so the thermal cut-out
has tripped.
The diode on the PCB flashes red (approximately one
flash per second).
The PCB should be replaced.
