12
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
SUGGESTED CORRECTION
• Compressor will not turn on
• No electrical power
• Loose wire connections
• Overheating Compressor
• Turn on power
• Tighten connections
• See “Overheating Compressor”
• Knocking noise or internal pump issue
• Internal pump issue
• Call C-Aire for assistance
• Pump/motor hums
• Not unloading head pressure
• Clean check valve
• Check Solenoid operation
• Low incoming voltage
• Check voltage
• Upsize wire
• Pressure differential too small
• Increase differential between Max & Min pressure
• Short cycling
• Leaks
• Find and repair leaks
• Check valve not seated
• Clean/replace check valve
• Stretch spring
• Condensation built up in plumbing
• Drain condensation
• Reduce humidity in compressor room
• Install compressor above system valve
• Leaks
• Find and repair leaks
• Overheating Compressor
• System too large
• Decrease system pressure
• Upsize compressor
• Wrong size fuse or breaker
• Check fuse/breaker size
• Breaker/Fuse trips
• Bad fuse or breaker
• Replace
• Motor starting under load
• Clean/replace check valve
• Low incoming voltage
• Check voltage
• Upsize wire
• Leaks
• Find and repair leaks
• Pressure does not build or builds slowly
• Clogged air filter
• Replace filter element
• Internal pump issue
• Call C-Aire for assistance
• Solenoid not closing
• Check connections
• Replace solenoid
• Leaks
• Find and repair leaks
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