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 DEWALT technician or your dealer.

Problem

Code

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

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

 

 

Troubleshooting Codes

CODE

POSSIBLE CAUSE

POSSIBLE SOLUTION

1

Pressure switch does not shut off

Set the Auto/Off switch to OFF, if the unit does not shut off contact a DEWALT factory service

 

motor when compressor reaches

center or a DEWALT authorized service center.

 

cut-out pressure

 

 

 

 

2

Pressure switch cut-out too high

Contact a DEWALT factory service center or a DEWALT authorized service center.

3

Tube fittings are not tight enough

Tighten fittings where air can be heard escaping. Check fittings with soapy water solution. Do

 

 

Not Overtighten.

4

Defective air tank

Air tank must be replaced. Do not repair the leak.

 

 

WARNING: Risk of bursting. Do not drill into, weld or otherwise modify air tank or

 

 

it will weaken. The air tank can rupture or explode.

5

Leaking seals

Contact a DEWALT factory service center or a DEWALT authorized service center.

 

 

 

6

Defective safety valve

Operate safety valve manually by pulling on ring. If valve still leaks, it must be replaced.

 

 

 

 

 

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English

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DeWalt DWFP55130 instruction manual Troubleshooting Guide, Troubleshooting Codes, Code Possible Cause Possible Solution