Page 32
8.4
TABLE OF ALARMS SIGNALED BY DISPLAY - VERSIONS I -
Below is the table of the unit operating anomalies signaled, in the electronic versions I by the remote display or by the flashing of the LED on the
board.
CODE
DESCRIPTION
CAUSE
REMEDY
CARD BLINKS
E1
Water
temperature
alarm
Water request detected by the H2 probe not
satisfied (above 20 ° C in cooling, below 30 ° C in
heating). It causes the fan to stop until the
temperature reaches an adequate value to
satisfy the request *.
Check the water temperature or
the positioning of the H2 probe
1 flash - off 3 seconds
Fan alarm
Faulty fan connector or no feedback signal
Check the connection of the fan
connector to the board
Replace the fan control cable
2 flashes - off 3
seconds
Water probe
alarm
Broken or missing reading of the probe
Check the connection of the
probe or replace it
3 flashes - off 3
seconds
GRID contact open GRID contact open on the board
Check the presence of the
bridge or of the connected
contact closed
Continuous high
frequency flashing
Communication
alarm with remote
display
No communication between display and board for
at least 300 seconds.
Check the filter status and keep
the on off key pressed to reset
the signal;
Check that A and B are not
reversed
Check the correct insertion of
the display connection board on
the main board
6 flashes - off 3
seconds