DeWalt D55166 User manual

ENGLISH
12
Troubleshooting Codes
CODE POSSIBLE CAUSE POSSIBLE SOLUTION
1 Pressure switch does not shut off
motor when compressor reaches
cut-out pressure
Set the Auto/Off switch to OFF, if the unit does not shut off contact a D
e
WALT
factory service center or a D
e
WALT authorized service center.
2 Pressure switch cut-out too high Contact a D
e
WALT factory service center or a D
e
WALT 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 D
e
WALT factory service center or a D
e
WALT authorized service center.
6 Defective safety valve Operate safety valve manually by pulling on ring. If valve still leaks, it must be
replaced.
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 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.
8 Prolonged excessive use of air Decrease amount of air usage.
9 Compressor is not large enough
for accessory
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.
10 Hole in air hose Replace air hose.
11 Check valve restricted Contact a D
e
WALT factory service center or a D
e
WALT authorized service center.
12 Air leaks Tighten fittings.
13 Regulator is damaged Replace.
14 Motor overload protection switch
has tripped
Refer to Motor Overload Protection under Features. If motor overload
protection trips frequently, contact a D
e
WALT factory service center or a
D
e
WALT authorized service center.
15 Tank pressure exceeds pressure
switch cut-in pressure
Motor will start automatically when tank pressure drops below cut-in pressure
of pressure switch.
16 Extension cord is wrong length
or gauge
Check for proper gauge wire and cord length. Refer to the Extension Cords
paragraph in the Installation section.
17 Loose electrical connections Contact a D
e
WALT factory service center or a D
e
WALT authorized service center.
18 Possible defective motor Contact a D
e
WALT factory service center or a D
e
WALT authorized service center.
19 Paint spray on internal motor
parts
Contact a D
e
WALT factory service center or a D
e
WALT authorized service
center. Do not operate the compressor in the paint spray area. See flammable
vapor warning.
20 Fuse blown, circuit breaker
tripped
Check fuse box for blown fuse and replace as necessary. Reset circuit breaker.
Do not use a fuse or circuit breaker with higher rating than that specified for
our particular branch circuit.
Check for proper fuse. You should use a time delay fuse.
Check for low voltage conditions and/or proper extension cord.
Disconnect the other electrical appliances from circuit or operate the
compressor on its own branch circuit.