Air Techniques, Inc.
Page 18
Appendix 2: Troubleshooting
The following description for fault finding is only meant for authorized personnel. Repairs must only
be carried out by authorized personnel.
Fault
Possible Cause
Remedy
Compressor does
not start
• no mains voltage
• check mains voltage
• low voltage
• check mains voltage
• capacitor defective
• check capacitor, if necessary change it
• pressure switch in (0) position
• set to the ON (I) position
• Motor defective
• Change product
• Protector in motor has switched off
• Allow compressor to cool
Attention, compressor will switch on
again automatically!
1. High ambient temp.
1. make better cooling arrangement
2. Mechanically sluggish
2. factory repair
3. Pressure in the line
3. Ventilate air intake
• Over current switch has switched off
• State cause
•
Suction filter dirty
•
Replace filter
Decrease in delivery
performance
• Lines, hoses or connections leaking
• Check lines, hoses and connections (if
possible, seal, otherwise replace
•
Suction filter very dirty
•
Change filter, if necessary fit filter with
greater surface area
• Gasket defective
• Replace
• Cup seal leaking
• Remedy
1. Worn or pitted
1. Exchange cup seal, cylinder and
washers (spare part kit)
2. Very dirty
2. Change filter
3. Too high ambient temperature
3. Arrange for better ventilation
4. Unsuitable substances aspirated
4. Only handle suitable medium
• Lamellar valve defective
• Change lamellar and if necessary
valve plate and seals
Compressor station
too noisy
• Bearing damaged
• Factory repair
• Vibrations transferred to the housing
• Fit suitable vibration damper (see
parts list)
• Vibration damper defective
• Fit new vibration dampers
Water drops out of the
air consumer
• Condensate in the pressure receiver.
Drying installation defective
• Exchange of drying installation
• Station without drying installation
• Drain the condensate regularly (see
par. 4.2.1)
Pressure dew point is
not suitable
• Purge air nozzle too small or too big
• Change the purge air nozzle
Moisture indicator at
the membrane dryer
is pink.
• The product had not been used over a
longer period.
• On operation of the product the mois-
ture indicator will regenerate itself and
change the colour back into blue.
• During operation there is a malfunction
of the dryer, insufficient air drying.
• Exchange of drying installation.
