9
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
SUGGESTED CORRECTION
• Compressor will not operate
• No electrical power*
• Loose wire connections
• Pressure switch not making contact
• Turn on power
• Tighten connection
• See pressure switch adjustment
• Knocking noise or internal pump issue
• Internal pump problem
• Call C-Aire for assistance
• Tank does not hold pressure when
compressor is turned off or unit
continuously runs
• Check all fittings
• Make sure drain valve is closed
• Clogged Check Valve
• Leaks on compressor fittings or down
stream
•
WARNING
: Bleed tank� Disassemble Check
Valve assembly, clean or replace faulty parts�
•
DANGER
: Do not disassemble Check Valve
with air in tank
• Check fittings**
• Tank pressure builds up slowly
• Clogged air filter
• Air leaks
• Clean or replace filter element
• Tighten joints
• Fuse or breaker trip
• Wrong size fuse or breaker
• Wrong size wire
• Motor starting under load
• Loose wires
• Compressor is being overworked
• Check fuse/breaker size
• Check volts/amps
• Make sure pump is unloading when
compressor shuts off
• Check electrical connections
• Compressor should not run more than 6 out of
10 minutes on average
• Overheating compressor
• Poor ventilation
• Internal pump problem
• Relocate compressor
• Have unit serviced/call C-Aire
• Short cycling
• Condensation in the tank
• Drain
weekly
* Thermal overload tripped�
** Or isolate compressor from system to determine leak location�
MODEL
SERIAL #
MFG #
Make a permanent record of the Model and Serial Number of your compressor by filling in the fields above� You’ll save time and expense
by including this reference identification on replacement part orders�
380 West 1st Street, Dresser, WI 54009 // 800�762�2247//651�462�3440//www�cairecompressors�com
