Riello Design white Series Instructions For The Installer And The Technical Service Centre page 38

HELIOTERM inverter
EFFECT
A delayed activation of the ventilation respect to
the new temperature or function settings.
The appliance does not activate the ventilation.
The ventilation does not activate even if there is
hot or cold water in the hydraulic circuit.
The appliance leaks water during the heating
function.
There are formations of dew on the front panel.
There are drops of water on the air outlet grill.
The appliance leaks water only during the cooling
function.
The appliance makes a strange noise.
PT
CAUSE
The circuit valve needs some time to open and
as a result the hot or cold water takes time to
circulate in the appliance.
No hot or cold water in the system.
The hydraulic valve remains closed.
The fan motor is blocked or burnt out.
The micro-switch that stops the ventilation when
the filter grill is opened does not close correctly.
The electrical connections are not correct.
Leaks in the hydraulic connections of the system.
Leaks in the valve unit.
Thermal insulation unstuck.
In situations of high humidity (>60%)
condensation could form, especially at the
minimum ventilation speeds.
The condensation bowl is blocked.
The condensation discharge does not need an
inclination for correct drainage.
The connection pipes and the valve unit are not
insulated well.
The fan touches the structure.
The fan is unbalanced.
Check the clogging of filters and clean them if
necessary
Wait for 2 or 3 minutes to open the circuit valve.
Check that the water boiler or cooler are
functioning correctly.
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.
Check the windings of the motor and thefree
rotation of the fan.
Check that by closing the grill the micro-switch
contact is activated.
Check the electrical connections.
Check the leak and fully tighten the connections.
Check the state of the gaskets.
Check the correct positioning of the thermo-
acoustic insulation paying attention to that in the
front above the finned battery.
As soon as the 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.
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.
Check the insulation of the pipes.
Check the clogging of filters and clean them if
necessary
The unbalancing causes excessive vibrations of
the machine; replace the fan.
Clean the filters
38
EN
REMEDY