7.3 TROUBLESHOOTING
1
Here is a list of possible problems and malfunctions, their causes and the procedures that
you or the technician service must perform to correct the malfunction.
2
PROBLEM
3
The cassette unit does not deliver air
4
5
6
The cassette fan coil produces
anomalous noise
7
8
Insufficient air volume and/or capac-
ity
9
The air delivered by the unit is not hot
or cold enough
10
+
In case of other problems, contact the area distributor or the EURAPO service department.
In case of fire, in order to prevent risk of electrocution, do not use water.
Use powder or CO
48
POSSIBLE CAUSE
Lack on the power supply
Set point reached
In presence of WS (minimum water
temperature thermostat), hot water
temperature < 35°C, insufficient wa-
ter flow and/or temperature in coil, or
damaged water sensor (WS)
Electric motor burnt
The filter and/or the coil is clogged
Vibrations caused by a wrong instal-
lation and /or loosening of the fixing
screw
Unbalanced fan deck
The filter and/or the coil is clogged
The fan speed is too low
Water and/or air temperature at the
entry of the fan coil does not comply
with the expected values
The pump is insufficient to handle
operational requirements
extinguishers.
2
SOLUTION
Verify the network voltage and/or the
integrity of the fuse on the control's
electronic card and the rightness of
the electrical connections
Check the control setting
Check the water temperature and
water flow on the coil and/or the
correct working of the water sensor
(WS)
Replace the component
Clean the filter and/or the coil
Verify carefully and carry out the cor-
rective actions
Replace it
Clean the filter and/or the coil
Increase the fan speed on the control
Verify the available capacity and the
capacity of the unit installed and
operate accordingly
Replace the pump with a pump suit-
able to the installation requirements