13-10-618 Page 72
SECTION 9
TROUBLESHOOTING
SYMPTOM
POSSIBLE CAUSE
REMEDY
Compressor fails to start
1.
Wrong lead connections.
1.
Change leads.
2.
Blown fuses in control
box.
2.
Replace fuse.
3.
Motor starter overload
heaters tripped .
3.
Reset and investigate
cause of overload.
4.
Pressure in reservoir.
4.
Inspect blowdown valve
and muffler.
5.
Read error message on
control panel
5.
Take appropriate action.
See Manual 13-17-600.
6.
Remote Contact is open
(terminals 6 & 9).
6.
Replace switch or jumper.
Compressor starts but
stops after a short time
1.
High discharge
temperature.
1.
See “High Discharge Air
Temperature,” this section.
2.
High discharge
temperature switch
malfunction.
2.
Replace switch
3.
Blown fuse in starter/
control box.
3.
Replace fuse (investigate if
fuses continue to blow).
4.
Motor starter overload
heaters trip.
4.
Reset and investigate
cause of overload.
Compressor does not
unload (or load)
1.
Improperly adjusted
control.
1.
Refer to Manual 13-17-600
and adjust control.
2.
Air leak in control lines.
2.
Determine source of leak
and correct.
3.
Restricted control line.
3.
Clean control lines.
4.
Blowdown valve
malfunction.
4
Repair, clean or replace
valve.
Compressor cycles from
load to unload
excessively
1.
Insufficient receiver
capacity.
1.
Increase receiver size.
2.
Restriction in service
piping
2.
Inspect and clean service
piping.
3.
Restriction in control
tubing.
3.
Inspect and clean control
tubing.
4.
Plugged aftercooler.
4.
Inspect and clean
aftercooler.
Summary of Contents for AirSmart EAU99T
Page 13: ...13 10 618 Page 12 Figure 1 6 PACKAGE AIR OIL FLOW DIAGRAM 202EDM797 Ref Drawing...
Page 39: ...13 10 618 Page 38 Figure 4 8 CONTROL SCHEMATIC COMPRESSOR AT FULL LOAD 206EAU797 B Ref Drawing...
Page 42: ...13 10 618 Page 41 Figure 4 11 WIRING DIAGRAM WYE DELTA 329EAU546 A Ref Drawing Page 1 of 2...
Page 43: ...13 10 618 Page 42 329EAU546 A Ref Drawing Page 2 of 2...
Page 44: ...13 10 618 Page 43 Figure 4 12 WIRING DIAGRAM WYE DELTA 330EAU546 A Ref Drawing Page 1 of 2...
Page 45: ...13 10 618 Page 44 330EAU546 A Ref Drawing Page 2 of 2...
Page 49: ...13 10 618 Page 48 Figure 5 3 FLOW DIAGRAM 210EAU797 B Ref Drawing...
