12
12
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
SOLUTION
Compressor will not run
Loss of power or overheating
Check for proper use of extension cord.
No electrical power
Check to be sure unit is plugged in.
Check fuse/breaker.
Blown shop/house fuse
Replace shop/house blown fuse.
Shop/house breaker open
Reset shop/house breaker, determining why problem
happened.
Current limiting protector open
Unplug compressor and let thermal fuse cool for 5 min.
Bad pressure switch
Replace pressure switch.
Tank is at maximum pressure
Compressor will turn on when tank pressure drops to cut-
in pressure.
Compressor was turned off at the mains
before the onboard switch.
Turn off the onboard switch (which releases line pressure)
and turn on from the onboard switch.
Motor hums but cannot run or runs
slowly
Low voltage
Check with voltmeter.
Wrong gauge wire or length of extension
cord
Check for proper gauge wire and cord length.
Shorted or open motor winding
Take compressor to service centre.
Defective check valve or unloader
Take compressor to service centre.
Compressor was turned off at the mains
before the onboard switch.
Turn off the onboard switch (which releases line pressure)
and turn on from the onboard switch.
Current limiting protector open
Unplug compressor and let thermal fuse cool for 5 min.
Current limiting protector cuts out
repeatedly
Low voltage
Check with voltmeter.
Lack of proper ventilation/room
temperature too high
Move compressor to well-ventilated area.
Wrong gauge wire or length of extension
cord
Check for proper gauge wire and cord length.
Air tank pressure drops when
compressor shuts off
Loose connections (fittings, tubing, etc.)
Check all connections with soap and water solution and
tighten.
Loose drain valve
Tighten drain valve.
Check valve leaking
Take compressor to service centre.
DANGER!
Do not disassemble check valve, tank drain
valve or pressure relief valve with air in tank — bleed tank.
Excessive moisture in discharge air
Excessive water in air tank
Drain tank.
High humidity
Move to area of less humidity; use air line filter.
Compressor runs continuously
Defective pressure switch
Take compressor to service centre.
Excessive air usage
Take compressor to service centre.
Decrease air usage; compressor not large enough for
tool’s requirement.
Check tool or hose for air leak.
Piston rings are worn
Replace piston rings; air inlet filter is blocked, call customer
service for assistance.
Summary of Contents for AC30100S
Page 1: ...AC30100S Original instructions ...
Page 14: ...14 14 PARTS LIST ...
