13–11–602 Page 49
SECTION 9
TROUBLE SHOOTING
SYMPTOM
POSSIBLE CAUSE
REMEDY
Compressor fails to start.
1.
Wrong lead connections.
1.
Change leads.
2.
Blown fuses in control
2.
Replace fuse.
box.
3.
Motor starter overload
3. Reset and investigate
heaters tripped.
cause of overload.
4.
Pressure in reservoir.
4.
Inspect blowdown valve.
5.
Read error message on
5.
Take appropriate action.
control panel.
See Section 4.
6.
Remote Contact is open
6.
Replace switch or jumper.
(terminals 6 & 9).
Compressor starts but
1.
High discharge temperature.
1.
See “High Discharge
stops after a short time.
Air Temperature,” this
section, page 50.
2.
High discharge
2.
Replace switch.
temperature
switch
malfunction.
3.
Blown fuse in starter/
3.
Replace fuse
control box.
(investigate if fuses
continue to blow).
4.
Motor starter overload
4.
Reset and investigate
heaters trip.
cause of overload.
Compressor does not
1.
Improperly adjusted
1.
Refer to Section 4
unload (or load).
control.
and adjust control.
2.
Air leak in control
2.
Determine source of
lines.
leak and correct.
3.
Restricted control line.
3.
Clean control lines.
4.
Blowdown valve malfunction.
4.
Repair, clean or replace
valve.
Compressor cycles from
1.
Insufficient receiver capacity.
1.
Increase receiver size.
load to unload excessively.
2.
Restriction in control tubing.
2.
Inspect and clean control
tubing.
Summary of Contents for TWISTAIR EWDQ D
Page 14: ...13 11 602 Page 4 FIGURE 1 6 AIR WATER SCHEMATIC FIGURE 1 7 OIL SCHEMATIC...
Page 17: ...13 11 602 Page 7 DECALS 206EAQ077 212EAQ077 218EAQ077 211EAQ077 207EAQ077...
Page 18: ...13 11 602 Page 8 DECALS 216EAQ077 206EWD077 222EAQ077 221EAQ077 208EAQ077...
Page 35: ...13 11 602 Page 25 FIGURE 4 2 FLOW CHART FOR SET UP PROGRAMMING...
Page 44: ...13 11 602 Page 34 FIGURE 4 6 CONTROL TUBING SCHEMATIC 206EWD797 A Ref Drawing...
Page 48: ...13 11 602 Page 38 FIGURE 4 10 WIRING DIAGRAM FULL VOLTAGE 202EWD546 REF DRAWING...
Page 49: ...13 11 602 Page 39 FIGURE 4 11 WIRING DIAGRAM WYE DELTA 203EWD546 REF DRAWING...
Page 50: ...13 11 602 Page 40 FIGURE 4 12 AUTO SENTRY ES CONTROLLER DISPLAY...
Page 53: ...13 11 602 Page 43 FIGURE 5 2 FLOW DIAGRAM AIR COOLED 202EWD797 B Ref Drawing...
Page 54: ...13 11 602 Page 44 FIGURE 5 3 FLOW DIAGRAM WATER COOLED 203EWD797 A Ref Drawing...
Page 68: ......
