Troubleshooting - Husky 671-049 Operator's Manual

PROBLEM
Compressor will not run
Motor hums but cannot run or runs slowly
Fuses blow/circuit breaker trips repeatedly
Thermal overload protector cuts out
repeatedly
Air receiver pressure drops when compressor
shuts off
Excessive moisture in discharge air
Compressor runs continuously
Compressor vibrates
Air output lower than normal

TROUBLESHOOTING

POSSIBLE CAUSE
Loss of power or overheating
No electrical power
Blown shop/house fuse
Shop/house breaker open
Thermal overload is actuated
Pressure switch bad
Compressor has reached automatic shutoff
pressure
Low voltage
Wrong gauge wire or length of extension cord
Shorted or open motor winding
Defective check valve or unloader
Incorrect size fuse, circuit overload
Wrong gauge wire or length of extension cord
Defective check valve or under loader
Low voltage
Lack of proper ventilation/room temperature
too high
Wrong gauge wire or length of extension cord
Loose connections
(fittings, tubing, etc.)
Loose drain valve
Check valve leaking
Excessive water in air tank
High humidity
Defective pressure switch
Excessive air usage
Loose mounting bolts
Broken inlet valves
Connections leaking
Page 16
SOLUTION
Check for proper use of extension cord
Check to be sure unit is plugged in
Check fuse/breaker
Replace shop/house blown fuse
Reset shop/house breaker, determining why
problem happened
See manual page 13
Take compressor to service center
Release air from tank until compressor re-
starts automatically
Call an electrician
Check for proper gauge wire and cord length
Take compressor to service center
Take compressor to service center
Check for proper fuse, use time-delay fuse,
disconnect other electrical appliances from
circuit or operate compressor on its own
branch circuit
Check for proper gauge wire and cord length
Take compressor to service center
Call an electrician
Move compressor to well-ventilated area
Check for proper gauge wire and cord length
Check all connections with soap and water
solution and tighten
Tighten drain valve
Take compressor to service center
Drain tank
Move to area of less humidity; use air line filter
Take compressor to service center
Decrease air usage; compressor not large
enough for tool's requirement
Tighten mounting bolts
Take compressor to service center
Tighten connections