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13-8-638 Page 43
SYMPTOM
POSSIBLE
CAUSE
REMEDY
Compressor starts too
slowly
1.
Wye Delta switch time set
too long.
1. Contact
your
Gardner
Denver distributor.
2.
Minimum Pressure/Check
Valve is faulty.
2.
Repair or replace.
3.
Supply voltage is too low.
3.
Check the supply voltage.
Compressor is low on
delivery and pressure
1.
Restricted air filter.
1.
Clean or replace filter.
2.
Sticking inlet valve.
2.
Inspect and clean inlet
valve.
3.
Minimum pressure valve
stuck closed.
3. Replace
valve.
4.
Oil separator clogged.
4.
Replace.
5.
Intervals of moisture
separator drainage
incorrectly set.
5.
Check the setting in the
Air Pilot controller.
6. Condensate
drain
solenoid valve is faulty.
6. Replace.
7.
Leaks in the compressed
air system.
7.
Check for leaks, fix any
leaks found.
8.
V-Belts broken.
8.
Replace.
9.
V-Belts slipping.
9.
Test belt tensioning.
10.
Pressure limits incorrectly
set.
10. Check/correct
pressure
limits in the Air Pilot
Controller.
11. Aftercooler
is
frozen
11.
Thaw out. This machine
cannot operate in
temperatures below 32
°
F
(0
°
C).
High discharge air
temperature
1.
Dirty or clogged cooler
face.
1. Clean
cooler.
2.
Insufficient cooling air
flow.
2. Provide
unrestricted
supply of cooling air.
3.
Clogged oil filter or cooler
(interior).
3.
Replace filter or clean
cooler.
4.
Low compressor oil.
4.
Add oil to proper level.
5. Faulty
temperature
sensor.
5. Replace
sensor.
6. Thermostatic
mixing
valve
stuck open.
6.
Repair or replace valve.
Excessive oil
consumption
1. Oil
carryover
through
lines.
1.
See “Oil Carryover”, in this
section.
2.
Oil leaks at all fittings and
gaskets.
2.
Tighten or replace fittings
or gaskets.
Summary of Contents for INTEGRA EFD99B
Page 9: ...13 8 638 Page 2 Figure 1 2 COMPRESSOR ILLUSTRATION 300EFD797 A Ref Drawing...
Page 12: ...13 8 638 Page 5 DECALS 206EAQ077 212EAQ077 218EAQ077 211EAQ077 207EAQ077...
Page 13: ...13 8 638 Page 6 DECALS 216EAQ077 217EAQ077 222EAQ077 221EAQ077 208EAQ077...
Page 29: ...13 8 638 Page 22 Figure 4 3 WIRING DIAGRAM FULL VOLTAGE 303EFD546 D Ref Drawing Page 1 of 2...
Page 30: ...13 8 638 Page 23 Figure 4 4 WIRING DIAGRAM FULL VOLTAGE 303EFD546 D Ref Drawing Page 2 of 2...