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English
Troubleshooting Guide
This section provides a list of the more frequently encountered malfunctions, their causes and corrective actions. The operator or
maintenance personnel can perform some corrective actions, and others may require the assistance of a qualified D
E
WALT technician
or your dealer.
Problem
Code
Excessive air tank pressure-safety valve pops off
...................................................................
1
Air leaks
...................................................................................................................................
2
Continuous air leak at unloader valve.
....................................................................................
3
Air leaks in air tank or at air tank welds
..................................................................................
4
Air leaks between head and valve plate
.................................................................................
5
Air leaks from safety valve
.......................................................................................................
6
Compressor is not supplying enough air to operate accessories
.........................................
2, 7, 8, 9, 10, 12, 13
Restricted air intake.
................................................................................................................
12
Excessive vibration
...................................................................................................................
14, 15
Problem
..........................................................................................................................................
Code
Knocking Noise
.........................................................................................................................
6, 13, 14, 15, 16, 17, 18, 19
Excessive belt wear
..................................................................................................................
13,14,16,19,20
Squealing sound
.......................................................................................................................
13
Engine will not run
....................................................................................................................
21, 22, 23, 34
Pressure reading on the regulated pressure gauge drops when an accessory is used
......
24
Regulator knob has continuous air leak
..................................................................................
25
Regulator will not shut off air outlet
........................................................................................
25
Moisture in pump crankcase
...................................................................................................
2, 5, 11, 26, 27, 28, 29, 30, 31
Pump will not run
......................................................................................................................
32
Air tank pressure will not build
................................................................................................
32, 33