14
3 - TROUBLESHOOTING
3.1 -
Troubleshooting
In case of water leaks or anomalous functioning immediately cut off the power supply and close the water taps.
Should one of the following anomalies occur, contact an authorised service centre or an authorised qualified person, but do not
intervene personally.
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The ventilation does not activate even if there is hot or cold water in the hydraulic circuit.
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The unit leaks water during the heating function.
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The unit leaks water only during the cooling function.
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The unit makes an excessive noise.
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There are formations of dew on the front panel.
3.2 -
Table of anomalies and remedies
The interventions must be carried out by a qualified installer or by a specialised service centre.
Effect
Cause
Remedy
A delayed activation of the ventilation respect to
the new temperature or function settings.
The circuit valve needs some time to open and
as a result the hot or cold water takes time to
circulate in the unit.
Wait for 2 or 3 minutes to open the circuit valve.
The unit does not activate the ventilation.
No hot or cold water in the system.
Check that the water boiler or cooler are
functioning correctly.
The ventilation does not activate even if there is
hot or cold water in the hydraulic circuit.
The hydraulic valve remains closed.
Dismount the valve body and check if the water
circulation is restored.
Check the working efficiency of the valve by
powering it separately with 230V. If it activates
the problem could be the electronic control.
The fan motor is blocked or burnt out.
Check the windings of the motor and thefree
rotation of the fan.
The micro-switch that stops the ventilation when
the filter grill is opened does not close correctly.
Check that by closing the grill the micro-switch
contact is activated.
The electrical connections are not correct.
Check the electrical connections.
The unit leaks water during the heating function.
Leaks in the hydraulic connections of the system. Check the leak and fully tighten the
connections.
Leaks in the valve unit.
Check the state of the gaskets.
There are formations of dew on the front panel. Thermal insulation 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 the humidity starts falling the
phenomenon disappears. In any case the
presence of a few drops of water in the unit
does not indicate a malfunction.
The unit leaks water only during the cooling
function.
The condensation bowl is blocked.
Slowly pour a bottle of water in the low part of
the battery to check the drainage; if necessary,
clean the bowl and/or increase the inclination of
the drainage pipe.
The condensation discharge does not need an
inclination for correct drainage.
The connection pipes and the valve unit are not
insulated well.
Check the insulation of the pipes.
The unit makes a strange noise.
The fan touches the structure.
Check the clogging of filters and clean them if
necessary
The fan is unbalanced.
The unbalancing causes excessive vibrations of
the machine; replace the fan.
Check the clogging of filters and clean them if
necessary
Clean the filters
Summary of Contents for 42SIC
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