Technical data

36
Linea 24 & 28
A2
REPLACE PCB
FUSE OK
CHECK FUSES F1
AND F2 ON PCB
RECHECK
SUPPLY FUSE
& CONNECTORS
TO BOILER
TERMINALS
IS THE
LED FLASHING
RED
REPLACE THE
LED ASSEMBLY
230V
PRESENT
BETWEEN
M16.L & M16.N ON
CONTROL
BOARD
RESTART THE
TEST
REPLACE FUSE
IS LED
ASSEMBLY
OK
A4
IS
DIGITAL DISPLAY
ILLUMINATED
REPLACE THE
DISPLAY PCB
5 VDC
BETWEEN
TERMINALS
M9.1 & M9.2
PCB
CHECK AND/OR
REPLACE WIRING
OR CONNECTIONS
TO DISPLAY BOARD
5 VDC
BETWEEN
TERMINALS
M2.1 & M2.2 ON
DISPLAY
BOARD
REPLACE DISPLAY
BOARD
DIGITAL DISPLAY
SHOWING 01
TURN SELECTOR
SWITCH TO
RESET
TURN SELECTOR
SWITCH TO HOT
WATER
POSITION
IS THE LED
GREEN
RESTART THE
TEST
IS
ELECTRONIC
IGNITION
CONTROL
OK
REPLACE PCB
REPLACE
ELECTRONIC
IGNITION
CONTROL
DIGITAL DISPLAY
SHOWING 02
IS THE LED
GREEN
WAIT FOR
BOILER TO COOL
CHECK WIRING AND
CONNECTIONS, HIGH
LIMIT THERMOSTAT
AND PCB
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
YES
YES
YES
YES
YES
NO
NO
NO
YES
NO