Faults; Troubleshooting - Ferroli JOLLY Plus 2 VERSIONE VM-F Installation Manual

Troubleshooting

The operations must be carried out by a qualified installer or by a specialised service centre.
Effect
The ventilation is
activated later than the
new temperature or
function settings .
The fan speed increases
or or decreases
automatically .
The unit does not
activate the ventilation .
The ventilation is not
activated even if there is
hot or cold water in the
hydraulic circuit .
The unit leaks water in
heating mode .
Dew on the front panel .
Water droplets on the air
outlet grille .
The unit only leaks water
in cooling mode .
The unit is too noisy
All the LEDs blink
together .
The Manufacturer declines any liability for inaccuracies contained in this manual, if due to printing or copying errors .
The Manufacturer reserves the right to make changes and improvements to the catalogue products at any time without notice .
Cause
The circuit valve takes
time to open and therefore to
circulate the hot or cold water in
the unit .
- The electronic control works in a
way to adjust the best comfort level
- No hot or cold water in the system .
- The hydraulic valve remains
closed
- The ventilation motor is blocked
or burnt out .
- The microswitch that stops the fan
on opening of the filter grille does
not close properly .
- The electrical connections are not
correct .
- Leakage in the system plumbing
connection .
- Leakage in the valve group .
- The thermostatic valve
incorporated in the connection
assembly between the plate and
coil does not close the flow towards
the wall .
- Thermal insulation detached .
- In situations of high ambient
relative humidity
(> 60%) condensation may occur,
especially at the minimum fan
speeds .
- The condensate tray is clogged .
- The condensate drain does not
have the required slope for proper
drainage .
- The connection pipes and the
valve group are not properly
insulated .
- The fan touches the structure .
- The fan is unbalanced .
- Dirty filters .

FAULTS

Wait 2 or 3 minutes for the circuit valve to
open .
- Wait for temperature adjustment or, in case
of need, select the silent function .
- Make sure the boiler or the water chiller are
operating .
- Remove the valve body and check if the
circulation of water is restored .
- Check the operation of the valve, powering
it separately at 220 V . If it activates, the
problem may be in the electronic control .
- Check the motor windings and the free
rotation of the fan .
- Check that closing of the grille causes
activation of the microswitch contact .
- Check the electrical connections .
- Check the leakage and tighten the
connections .
- Check the seals .
- Replace the union that integrates the
thermostatic valve in the water inlet upper
group .
- Check the correct positioning of the thermal-
acoustic insulation with particular attention to
that of the front over the finned finned coil .
- As soon as the relative humidity tends to fall
the condensation phenomenon disappears .
In any case, a few drops of water falling
inside the unit does not indicate a fault .
- Pour a bottle of water slowly in the
lower part of the coil to check drainage; if
necessary, clean the tray and/or improve the
slope of the drainage pipe .
- Check the insulation of pipes .
- Check any interference by turning the fan
manually .
- The lack of balance causes excessive
vibration of the unit: replace the fan .
- Clean the filters and reset the signalling
by pressing the MODE button for at least
5 seconds .
Cure
25