Troubleshooting Guide; Troubleshooting Codes - DeWalt D55167 Instruction Manual

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
Problem
Excessive air tank pressure-safety valve pops off ......................................................................1, 2
Air leaks .................................................................................................................................... 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
Knocking Noise .......................................................................................................................... 6
Pressure reading on the regulated pressure gauge drops when an accessory is used ........... 7
Compressor is not supplying enough air to operate accessories.............................................. 8, 9, 10, 11, 12, 22
Regulator knob has continuous air leak .................................................................................... 13
Regulator will not shut off air outlet ........................................................................................... 13
Motor will not run ....................................................................................................................... 6, 14, 15, 16, 17, 18, 19, 20
Squealing Sound ....................................................................................................................... 21
CODe POssIBle CAuse
1 Pressure switch does not shut off motor when
compressor reaches cut-out pressure
2 Pressure switch cut-out too high
3 Tube fittings are not tight enough

Troubleshooting Guide

Troubleshooting Codes

POssIBle sOlutIOn
Set the Auto/Off switch to OFF, if the unit does not shut off contact
a D WALT factory service center or a D
e
center.
Contact a D WALT factory service center or a D
e
service center.
Tighten fittings where air can be heard escaping. Check fittings
with soapy water solution. Do not Overtighten.
16
WALT technician or your dealer.
e
Code
WALT authorized service
e
WALT authorized
e