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22
English
Troubleshooting Codes
CODE POSSIBLE CAUSE POSSIBLE SOLUTION
1 Fittings are not tightTighten fittings where air can be heard escaping. Check fittings
with soapy water solution. DO NOT OVERTIGHTEN.
2Defective air tankAir 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.
3Leaking sealsContact a DEWALT factory service center or a D
E
WALT authorized
service center.
4 Defective safety valveOperate safety valve manually by pulling on ring. If valve still
leaks, it must be replaced.
5 Prolonged excessive use of airDecrease amount of air usage.
6Compressor is not large enough for accessoryCheck the accessory air requirement. If it is higher than the SCFM
or pressure supplied by your air compressor, a larger compressor
is needed to operate accessory.
7Hole in air hoseCheck and replace air hose, if required.
8 Unit operating in damp or humid conditionsMove unit to a dry well ventilated area.
9 Restricted air intake filterClean or replace air intake filter.
10
Extremely light duty cyclesRun unit for longer duty cycles. It is recommended to run at high
throttle 50-75% of the run time and idle for 25% of the run time.
11
Piston rings damaged or wornContact a D
E
WALT factory service center or a D
E
WALT authorized
service center.
12
Cylinder or piston damaged or wornContact a D
E
WALT factory service center or a D
E
WALT authorized
service center.
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