Bostitch BTFP02040, Operation And Maintenance Manual

10

11

TROUBLESHOOTING

PROBLEM

POSSIBLE CAUSE

SOLUTION

Compressor will 

not run

1) Loss of power or overheating

2) No electrical power

3) Blown shop/house fuse

4) Shop/house breaker open

5) Thermal overload open

6) Pressure switch bad

7) Tank is full of air

1) Check for proper use of extension cord

2) Check to be sure unit is plugged in. 

    Check fuse/breaker or motor overload

3) Replace shop/house blown fuse

4) Reset shop/house breaker, determin ing

    why problem happened

5) Motor will restart when cool

6) Take compressor to service center

7) Compressor will turn on when tank

    pressure drops to cut-in pressure

Motor hums but 

cannot run or runs 

slowly

1) Low voltage

2) Wrong gauge wire or length 

    of extension cord

3) Shorted or open motor

     winding

4) Defective check valve or

     unloader

1) Check with voltmeter

2) Check for proper gauge wire and

     cord length

3) Take compressor to service center

4) Take compressor to service center

Fuses blow/circuit 

breaker trips 

repeatedly

1) Incorrect size fuse, circuit

    overload

2) Wrong gauge wire or length 

     of extension cord

3) Defective check valve or

     under loader

1) Check for proper fuse, use time-delay 

fuse, disconnect other electrical 

appli ances from circuit or operate 

compressor on its own branch circuit

2) Check for proper gauge wire andcord 

length

3) Take compressor to service center

Thermal overload 

protector cuts out 

repeatedly

1) Low voltage

2) Lack of proper ventilation

    room temperature too high

3) Wrong gauge wire or length of

    extension cord

1) Check with voltmeter

2) Move compressor to well-

    ventilated area

3) Check for proper gauge wire and

     cord length

Air receiver 

pressure drops 

when compressor 

shuts off

1) Loose connections (fittings,

    tubing, etc.)

2) Loose drain valve

1) Take compressor to service center

2) Tighten drain valve

Do not disassemble check valve  tank 

drain valves or safety relief valve with 

air in tank - bleed tank.

Excessive moisture 

in discharge air

1) Excessive water in air tank

2) High humidity

1) Drain tank

2) Move to area of less humidity; use

     air line filter

Compressor runs 

continuously

1) Defective pressure switch

2) Excessive air usage

1) Take compressor to service center

2) Decrease air usage; compressor

     not large enough for tool’s

     requirement

Compressor 

vibrates

1) Loose mounting bolts

1) Tighten mounting bolts

Air output lower 

than normal

1) Broken inlet valves

1) Take compressor to service center