Troubleshooting Guide; Troubleshooting Codes - DeWalt D55154 Manual De Instrucciones

English
Duty Cycle: For proper operation of your air compressor, it
is recommended that a 50% duty cycle be maintained; that
is, the air compressor should not run more than 5 minutes
in any 10 minute period.

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 WALT technician or your dealer.
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Problem
Excessive air tank pressure-safety valve pops off
Air leaks
Air leaks in air tank or at air tank welds
Air leaks between head and valve plate
Air leaks from safety valve
Knocking noise
Pressure reading on the regulated pressure gauge drops when an accessory is used
Compressor is not supplying enough air to operate accessories
Regulator knob has continuous air leak
Regulator will not shut off air outlet
Moisture in pump crankcase
Motor will not run

Troubleshooting Codes

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
4 Defective air tank
5 Leaking seals
6
Defective safety valve
7 Regulator is not adjusted correctly for accessory being used It is normal for some pressure drop to occur when an accessory is used, adjust the
8 Prolonged excessive use of air
9 Compressor is not large enough for accessory
10 Hole in air hose
11
Check valve restricted
12 Air leaks
13 Regulator is damaged
14 Unit operating in damp or humid conditions
15 Restricted air intake filter
12
POssiBlE sOlUTiOn
Set the On/Off switch to OFF, if the unit does not shut off contact a D
service center or a D WALT authorized service center.
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Contact a D WALT factory service center or a D
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Tighten fittings where air can be heard escaping. Check fittings with soapy water
solution. Do Not Overtighten.
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.
Contact a D WALT factory service center or a D
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Operate safety valve manually by pulling on ring. If valve still leaks, it must
be replaced.
regulator as instructed in Regulator under Features if pressure drop is excessive.
nOTE: Adjust the regulated pressure under flow conditions while accessory is
being used.
Decrease amount of air usage.
Check the accessory air requirement. If it is higher than the CFM or
pressure supplied by your air compressor, a larger compressor is needed to
operate accessory.
Replace air hose.
Remove, clean or replace.
Tighten fittings.
Replace.
Move unit to a dry well ventilated area.
Clean or replace air intake filter.
Code
1, 2
3
4
5
6
6,16,17
7
8, 9, 10, 11, 12, 15
13
13
14,18
11, 19, 20, 21, 22, 23, 24, 25, 26
WALT factory
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WALT authorized service center.
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WALT authorized service center.
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