Troubleshooting Guide; Troubleshooting Codes - DeWalt D55146 Guide D'utilisation

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 .......................................................................................................................... 6,16,17
Pressure reading on the regulated pressure gauge drops when an accessory is used ........... 7
Compressor is not supplying enough air to operate accessories.............................................. 8,9,10,11,12,15
Regulator knob has continuous air leak .................................................................................... 13
Regulator will not shut off air outlet ........................................................................................... 13
Moisture in pump crankcase ...................................................................................................... 14,18
Motor will not run ....................................................................................................................... 11,19,20,21,22,23,24
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 On/Off switch to OFF, if the unit does not shut
off contact a D
authorized service center.
Contact a D
authorized service center.
Tighten fittings where air can be heard escaping. Check
fittings with soapy water solution. Do Not Overtighten.
17
WALT technician or your dealer.
E
Code
WALT factory service center or a D
E
WALT factory service center or a D
E
WALT
E
WALT
E