EN - 14
3. TROUBLESHOOTING
Should leaks occur or in the case of abnormal operation, immediately cut off the electrical supply and shut off
the water inlet.
If you notice any of the following faults, contact a qualified technican and do not intervene yourself.
- The ventilation is not activated even if there is hot or cold water in the hydraulic circuit.
- The appliance leaks water during heating .
- The unit leaks water during cooling.
- The appliance makes excessive noise.
- Condensation forms on the front panel.
- The blue and red LEDs at the end of the thermostat cursor flash.
3.1 Table of faults and remedies
Servicing should be carried out by a qualified installer only.
Effect
Cause
Remedy
The ventilation speed increases or decreases
automatically.
- The electronic control adjusts the
comfort level regularly.
- Wait for the temperature adjustment or if
needed select the silent function.
The appliance is not activated the ventilation. - No hot or cold water in the system.
- Ensure that the heating generator (heat
pump, boiler...) is operaing
The ventilation is not activated even if there is
hot or cold water in the hydraulic circuit.
- the fan motor is blocked or burnt out.
- t h e m i c r o - s w i t c h t h a t s t o p s t h e
ventilation when the filter grill is opened
does not close correctly.
- the electrical connections are not correct.
- Check the working efficiency of the valve
by powering it separately with 220V. If it
activates the problem could be the
electronic control.
- Check the windings of the motor and the
free rotation of the fan.
- Check that by closing the grill the micro-
switch contact is activated.
- Check the electrical connections.
The appliance leaks water during heating.
- Leaks in the hydraulic connections of
the system.
- Check the leak and fully tighten the
connections.
- Check the state of the gaskets.
Condensation forms on the front panel.
- Thermal insulation has come unstuck.
- Check the correct positioning of the
thermo-acoustic insulation paying
attention to that in the front above the
finned battery.
There are drops of water on the air outlet grill. - In situations of high humidity (>60%)
condensation could form, especially at
the minimum ventilation speeds.
- As soon as humidity starts falling
the phenomenon disappears. In any
case the presence of a few drops of water
in the appliance does not indicate a
malfunction.
The appliance leaks water during cooling.
- The condensation pan is blocked.
- The condensation discharge does not
need an inclination for correct drainage.
- The connecting pipes are poorly insulated.
- Slowly pour a bottle of water in the low
part of the battery to check the drainage;
if necessary, clean the pan and/or
increase the inclination of the drainage pipe.
- Check the insulation of the pipes.
The appliance makes a strange noise.
- The fan touches the structure.
- The fan is unbalanced.
- Check for any interference by manually
rotating the fan.
- The unbalancing causes excessive
vibrations of the machine; replace the
fan.
All the LEDs flash at the same time (if the
signal is enabled).
- Dirty filters.
- Clean the filters and reset the signal by
pressing the MODE key for at least 5
seconds.
