FOCKE MELER GLUING SOLUTIONS
6-2
TROUBLESHOOTING
Causes Checking Comments Actions
Equipment power
supply malfunction.
Check voltage between phases
and neutrals in the main terminal.
Check voltage in CN4 connector
(power board).
Voltages will vary depending on
power supply.
Check wiring.
Check net power
supply. Change
electric supply cable.
Melter thermostat
malfunction.
Check continuity in thermostat
(2S2.1).
If continuity, switch is OK. Reset
it.
Change thermostat.
Switch malfunction. Check continuity in switch (1S2)
If continuity in CN7 connector,
switch is OK.
Change switch.
Power board
malfunction.
Check voltage in CN8 connector.
Bypass CN8 pins. If 230V, the
board is correct.
Change power board.
Control board fuse
damaged.
Verify continuity in fuse (F1).
Check first 230V is supplied to
the control board (CN8)
Change fuse.
Control board
malfunction.
Check voltage in CN9 connector.
Fuse works and 230V arrive to
control board
Change control board.
Melter
The unit does not turn on (5, 10 and 20 adhesive melters)
Causes Checking Comments Actions
Equipment power
supply malfunction.
Check voltage between phases
and neutrals in the main terminal.
Check voltage in CN4 connector
(power board).
Voltages will vary depending on
power supply.
Check wiring.
Check net power
supply. Change
electric supply cable.
Melter thermostat
malfunction.
Check continuity in thermostat (*).
( 1 )
If continuity, switch is OK. Reset
it.
Change thermostat.
Switch malfunction. Check continuity in switch (1S2)
If continuity in CN7 connector,
switch is OK.
Change switch.
Faulty contactor.
Check that the contactor (*)
( 2 )
receives 230 V (A1-A2) and then
check for continuity between the
contacts (13-14).
The contactor is working
properly if it receives 230 V and
there is continuity between
contacts 13-14.
Replace the contactor.
Power board
malfunction.
Check voltage in CN8 connector.
Bypass CN8 pins. If 230V, the
board is correct.
Change power board.
Control board fuse
damaged.
Verify continuity in fuse (F1).
Check first 230V is supplied to
the control board (CN8)
Change fuse.
Control board
malfunction.
Check voltage in CN9 connector.
Fuse works and 230V arrive to
control board
Change control board.
Note Micron, 1 geared motor Micron, 2 geared motors
(1) 7S4 9S4
(2) 7K3 9K3
The unit does not turn on (35 adhesive melter)
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