Sullair SRL-7.5MB - Digital Display Error and Alarm Indications

02250236-267 R02 Subject to EAR, ECCN EAR99 and related export control restrictions.
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Digital Display Error and Alarm Indications (Default function)
Troubleshooting (continued)
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Digital Display Display Error/Alarm Description Corrective Action
A.THI
High ambient temperature
alarm
Verify that the ambient temperature is below 104
°
F
(40
°
C) and reset the air compressor. If the error
re-occurs and the ambient temperature is below
104
°
F (40
°
C), contact the local Sullair distributor.
A.nnT
Maintenance alarm
This alarm is displayed when the total operating
hours exceed 2,500 hours. Carry out inspection
and maintenance of the air compressor.
Scroll head maintenance
alarm
This alarm is displayed when the total operating
hours exceed 9,500 hours (145PSIG Model
: 4,500 hours). Carry out inspection and
maintenance of the scroll head.
A.OH Overhaul alarm
This alarm is displayed when the total operating
hours exceed between 19,000 to 19,500 hours
(145PSIG Model : between 13,500 to 14,500
hours). Carry out overhaul of the Scroll Head.
E.CPU Microcomputer error
Turn off the main power supply to reset the air
compressor and turn the power back on. If the
error re-occurs, replace the Printed Circuit Board.
(Contact the local Sullair distributor.)
E.Pr.H
Air compressor high pressure
error
The Electromagnetic Contactor, Printed Circuit
Board, Pressure Sensor or another electrical
component has failed. Contact the local Sullair
distributor.
E.Pr.S Pressure sensor error
Tighten the pressure sensor wire and reset the
air compressor. If the error re-occurs, replace the
pressure sensor (Please contact the local Sullair
distributor).
E.Pr.E
Air compressor high pressure
emergency stop error
The Printed Circuit Board has failed. Contact
the local Sullair distributor to replace the Printed
Circuit Board.
E.rE
Phase reversal error Change two of the three incoming power cables.
Damage to reversal phase
wiring
Confirm that there is no disconnection or damage
to the phase reversal wiring. If the error re-occurs,
contact the local Sullair distributor.
E.Co.
Upper main motor thermal
overload error
Please contact the local Sullair distributor to
eliminate the probable cause and reset the main
motor thermal overload error.
E.Co.
Middle main motor thermal
overload error
E.Co.
Lower main motor thermal
overload error
E.Co.
All main motors thermal
overload error (7.5/11MB6)
E.Co.
All main motors thermal
overload error (16.5MB6)
E.TP.A
High ambient temperature
error
Verify that the ambient temperature is below
104
°
F (40
°
C). Turn off the main power supply
to reset the air compressor and turn the power
back on. If the error re-occurs and the ambient
temperature is below 104
°
F (40
°
C), contact the
local Sullair distributor.
E.TP.
Upper scroll head high
temperature error