AERTESI srl SOFFIO INSTALLATION USE AND MANTEINANCE MANUAL
Page 13 AER.MIU.GB.SOFFIO.000.02.15
After replacing the fan, install all the components performing the same operations in reverse order.
9- TROUBLESHOOTING
Anomaly
Possible failures
Remedy
The fan does not
work
There is no current
Check the breaker / fuse
The thermostat is damaged
Check if there is power to the terminals of the fan (and /
or 0-10V signal for EC)
The cables are not
connected
Verify all electrical connections within the wiring
diagram suppled
Condenser broken
Replace capacitor (AC motor)
Insufficient air flow
Dirty filter
Clean or replace the filter
Battery dirty
Clean the battery with lens cleaner
Selected speed low
Select a higher speed (max or med)
Noisy fan
Fan damaged
Visually check that the fan is undamaged
SOSTITUTION REQUIRED
Fan loose
Check that the fan is firmly secured to the machine
frame
Speed to much high
Select a lower speed (min or med)
In summer or
winter hot air
comes out cold air
Water too hot / cold
Check if temperature of inlet water is less than 10 ° C
in summer or more 40 ° C in winter.
Water flow low
Check if the dT between water input and output is at
most 7K
Valve closed
Check that all manual valves are open to interception
Valve Actuator broken
Check that the actuator has opened the valve
Air in the battery
Purge the coil with the air valve
Condensation on
discharge grille
Water too cool
Raise the water inlet temperature
Speed too low
Increase the fan speed (med or max)
Drip from the tank
Condensate drain clogged
Control the outflow of the exhaust pipe
Pan counterslope
Make sure the pan is level or tilted slightly towards the
drain
Water pipes are not
insulated
Insulate all pipes chilled water
Faulty seals
Check seals of hose connections
Dirty pan
Clean the pan to allow the normal flow of condensate
10- DISPOSAL
At the end of the service, the unit must be disposed of in compliance with local regulations on waste
disposal. The main materials present are: copper, aluminum, steel, polystyrene, plastic.
