ABAC FORMULA Series - Stops with Warning LED

P. 65 - Chap. 9 Troubleshooting
G
B
V-F V-V Indication Possible cause Intervention
X X
L2 flashing
DI indicates:
“Compression temp.
High.”
Excessive ambient or air
recirculation temperature
Improve air exchange and
check installation requirements
X X
FO clogged
Replace FO
(rif. par. 10.6)
X X
FD clogged
Replace FD
(see. par. 10.6)
X X
L2 flashing
DI indicates:
“Dewpoint probe error”
Problems in the dew
temperature sensor or its
connection
Call Customer
Service Centre
9.6
The machine stops when it is running and warning
LED comes on
V-F V-V Indication Possible cause Intervention
X X
L3 constant ON
DI indicates:
“Emergency
stop compress. - block”
The PE button has been
pressed
Reset the PE button
(see. par. 7.2.2)
X X
L3 constant ON
DI indicates:
“Net pressure
too high - block”
VA or solenoid valve problems
Call Customer
Service Centre
Net pressure too high caused
by other compressors
Check working pressure of all
compressors
X X
L3 constant ON
DI indicates:
“Compress.
motor overload - block”
Low voltage Check voltage
X X
Underscaled power cables
Check installation
requirements
X X
Critical functioning
temperature conditions
(high ambient temperature, hot
air recirculation)
Check functioning conditions
X X
FD clogged
Replace FD
(see. par. 10.6)
X X
FA clogged
Replace FA
(see. par. 10.4)
X
Star delta sequence
problems
Call Customer
Service Centre
X
Motor thermal protection
problems
Call Customer
Service Centre
X X
Electrical motor problems
Call Customer
Service Centre
X X
L3 constant ON
DI indicates:
“Line voltage
cutoff - block”
Line voltage cutoff problems Check line voltage
X X
L3 constant ON
DI indicates:
“Compression temp
too high - block”
Oil cooling low
Check functioning of the
electric fan and its fuses
FU3.
Call Customer
Service Centre