Riello DESIGN WALL Series Instructions For The Installer And The Technical Service Centre page 34

DESIGN WALL - Allarmi / Troubleshooting
EFFECT
The ventilation is delayed
respect to the new temperature or
function settings.
The device does not activate the
ventilation.
The ventilation does not start even if
the water circuit is filled with hot or
cold water.
The device is losing water in heating
mode.
There is dew on the front panel.
There are water drops on the air vent.
The device is losing water in cooling
mode.
The device generates excessive noise.
CAUSE
The circuit valve requires a certain
with
time to open and therefore to make
the hot or cold water circulate inside
the device.
Cold or hot water is missing from the
system.
The hydraulic valve stays closed
The ventilation motor is jammed or
burnt.
The wirings are not correct,
Leaks at the hydraulic connections of
the system.
Leaks at the valves unit.
Detaches thermal insulation.
High humidity conditions
might generate condensation, espe-
cially at minimum ventilation speeds.
The condensate tray is clogged.
The condensate discharge pipe does
not have the slope required for
correct drainage.
The connection pipes and the valves
unit are not well insulated,
The fan touches the structure.
The fan is unbalanced.
Check if the filters are dirty and clean
them if necessary
34
SOLUTION
Wait 2 or 3 minutes to allow the
circuit valve to open.
Make sure the boiler or the water
cooler are on.
Demount the body of the valve and
check if the water circulation is
restored.
Check the valve operation feeding
it separately to 230 V. If you were
to turn, the problem may be in the
electronic control.
Check the motor windings and check
if the fan rotates freely.
Check all wirings.
Check the leak and tighten the
connections.
Check the condition of the gaskets.
Check the correct
the thermal and acoustic insula-
tions paying particular attention to
the front one located on top of the
finned coil.
As soon as the level of relative
(>60%) humidity drops,
disappears. However, a few water drops
falling inside the device will not
cause any malfunction.
Slowly pour a bottle of water in the
lower section of the battery to check
the drainage; if necessary clean the
tray and/or improve the slope of the
drain pipe.
Check the pipes insulation.
Check if the filters are dirty and clean
them if necessary
The unbalancing generates excessive
machine vibrations: replace the fan.
Clean the filters
positioning of
the phenomena