ALARMS CONTROL ELECTRONIC CONTROL
Below is the table of operating anomalies of the unit
Display of the alarm condition
REMEDY
CODE
DESCRIPTION
CAUSE
No link
Obstructed filters (Signaling)
Temperature probe alarm
High pressure alarm
- Reporting time for filter changes
- Breakage and failure to read the probe
- Press of the high pressure switch
- Check the status of the filters
-Check the connection between the display
and the unit
-Replace the temperature probe
-Check the status of the external alarm
signaling device
-Check the regulation of the generator for the
control of the water inlet temperature
- Check water circulation
- Check air flow
- Check air / water inlet temperatures
- Check the status of the high pressure switch
External alarm
Communication alarm
Input temperature alarm water
- Digital input alarm
- No display communication
-Very high or too low value of the
water inlet temperature
GENERAL ANOMALIES TABLE
REMEDY
PROBLEM
CAUSE
Display off
Low or no air flow
The rooms remain damp
High noise level
No power supply (light switch off)
Clogged filters
Clogged heat exchanger
Noise from the unit
Noise coming from the ducts
Check for cracks and / or air leaks from panels of the unit
Check the siphon connection
Check if the motors turn correctly (bearings)
Check for cracks on the suction / inlet / exhaust ducts
Condensation loss
Clogged condensate drain
The condensate does not flow from
the exhaust pipe into the collection
tray
Clean the condensate drain
Verify that the unit is perfectly flat
Check that the condensate drain connections are clogged
High vibrations
Panels that vibrate
Unbalanced fans blades
Check the integrity of the aluminum panels/profiles of the unit
Check that the cover of the unit and the panel covering the
electronic card are closed correctly
Check that there are no walls that can transmit vibrations to
the wall / floor / countertops
Check the integrity of the blades
Clean the fans
Check that the fans are still present small metal clips for
balancing the blades themselves
Frozen heat exchanger
Dirty fan
Clogged fan ducts
Outdoor temperature lower than 0 ° C
Replace the filters
Clean the exchanger
Bring the exchanger to a warm place and wait for it to thaw,
do not heat with direct heat.
The unit may be in antifreeze mode, wait until the outside
temperature increases or provide for the installation of an
electric pre-heating.
Clean the fan
Clean the ventilation ducts
Check the connection to the mains
Check and replace the existing fuse if necessary
on the (black) power connector on the side of the unit.
