Dewalt D55140 Instruction Manual - Page 16

English CODE POSSIBLE CAUSE 4 Defective air tank 5 Leaking seals 6 Defective safety valve 7 Regulator is not adjusted correctly for accessory being used 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 Motor overload protection switch has tripped 15 Extension cord is wrong length or gauge 16 POSSIBLE SOLUTION 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 DEWALT factory service center or a DEWALT authorized service center. Operate safety valve manually by pulling on ring. If valve still leaks, it must be replaced. 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. 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. See Motor Overload under Features. Check for proper gauge wire and cord length. See Extension Cords under Installation.