21
Error messages
An alarm message LED is located on the control box. The table below shows the information supplied by the LED:
NOTE To reset the Preheater or the internal/external high temperature alarm act on contact 3 of the dip switch INT2: set it
to ON, wait a few seconds and then put it to OFF. If the alarms have been reset correctly, the LED stops blinking.
Procedure to reset the filter timer
When user replaces filters have to reset the filter timer thanks to a series of acting (on the control box).
Below the procedure to reset the filter timer:
1. (on the control box) Put the “Start/stop switch” on “OFF” and the “speed switch” on “1”. Wait at least 5 seconds;
2. Put the “Start/stop switch” on “ON”. Wait at least 5 seconds;
3. Put the “speed switch” on “2”. Wait at least 5 seconds;
4. Put the “Start/stop switch” on “OFF”. Wait at least 5 seconds;
5. Put the “speed switch” on “3”. Wait at least 5 seconds;
6. Put the “Start/stop switch” on “ON”. Wait at least 5 seconds;
7. Put the “speed switch” on “2”. Wait at least 5 seconds;
8. Put the “Start/stop switch” on “OFF”. Wait at least 5 seconds;
9. Put the “speed switch” on “1”. Wait at least 5 seconds;
If the LED is off (so leaves by “dirty filter pre-alarm” or “dirty filter alarm”) means that the filter timer was correctly resetted.
ENGLISH
LED STATUS
MEANING
WHAT IT INVOLVES
WHAT TO DO
RESET
OFF
Everything is ok
Regular slow blinks
Dirty filter prealarm
Nothing
Replace the filters as
soon as possible.
After 2 months from
its start the machine
goes into filter alarm
and it stops
Manual, through the
filter timer reset
procedure
Steady on
Dirty filter alarm
The machine stops
Replace the filters
Manual, through the
filter timer reset
procedure
1 quick blink
Malfunction of the inter-
nal air temperature
probe
The machine stops
Call CAT
Automatic reset as
soon as the probe
restarts
2 quick blinks
Malfunction of the ex-
ternal air temperature
probe
The machine stops
Call CAT
Automatic reset as
soon as the probe
restarts
3 quick blinks
Malfunction of the re-
turn air temperature
probe
The machine stops.
Call CAT
Automatic reset as
soon as the probe
restarts
4 quick blinks
Preheater malfun-
ction
The no-frost through
preheater does not
work
Call CAT
Manual, through alarm
reset dip switch
5 quick blinks
High external air
temperature
The machine stops
Wait until the
temperature reaches
normal values
Automatic reset
when the
temperature reaches
normal values
6 quick blinks
High internal
air temperature
The machin stops
Wait until the
temperature reaches
normal values
Automatic reset
when the
temperature reaches
normal values
7 or more quick blinks
Malfunction of the
electronic board
Nothing
Call Cat
Manual
