English
Troubleshooting Codes
Code | possible cause | POSSIBLE SOLUTION |
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1 | Unloader valve does not release pressure when air tank | Unloader valve must be replaced. Contact a DeWALT factory |
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2 | Fittings are not tight | Tighten fittings where air can be heard escaping. Check fit- |
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| tings with soapy water solution. DO NOT OVERTIGHTEN. |
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3 | Defective unloader valve | Turn off engine, rotate manual lock unloader lever to the |
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| closed perpendicular position. If air leaks out of air tank |
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| through unloader valve, replace unloader valve. |
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4 | Defective air tank | Air tank must be replaced. Do not repair the leak. |
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| Warning: Risk of bursting. Do not drill into, weld or oth- |
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| erwise modify air tank or it will weaken. The air tank can |
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| rupture or explode. |
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5 | Leaking seals | Contact a DeWALT factory service center or a DeWALT |
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| authorized service center. |
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6 | Defective safety valve | Operate safety valve manually by pulling on ring. If valve still |
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| leaks, it must be replaced. |
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7 | Prolonged excessive use of air | Decrease amount of air usage. |
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8 | Compressor is not large enough for accessory | Check the accessory air requirement. If it is higher than the |
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| SCFM or pressure supplied by your air compressor, a larger |
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| compressor is needed to operate accessory. |
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9 | Hole in air hose | Check and replace air hose, if required. |
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10 | Unloader valve restricted | Remove, clean or replace. |
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11 | Unit operating in damp or humid conditions | Move unit to a dry well ventilated area. |
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12 | Restricted air intake filter | Clean or replace air intake filter. |
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