Dewalt DWFP55120 Instruction Manual - Page 15

English Problem Code Excessive air tank pressure-safety valve pops off 1, 2 Air leaks ...3 Air leaks in air tank or at air tank welds 4 Air leaks between head and valve plate 5 Air leaks from safety valve...6 Knocking Noise...6 Pressure reading on the regulated pressure gauge drops when an accessory is used 7 Compressor is not supplying enough air to operate accessories 8, 9, 10, 11, 12 Regulator knob has continuous air leak 13 Regulator will not shut off air outlet 13 Motor will not run...14, 15, 16, 17, 18, 19 Troubleshooting Codes CODE POSSIBLE CAUSE POSSIBLE SOLUTION 1 Pressure switch does not shut off motor when Set the On/Off switch to OFF, if the unit does not shut off contact a DeWALT compressor reaches cut-out pressure factory service center or a DeWALT authorized service center. 2 Pressure switch cut-out too high Contact a DeWALT factory service center or a DeWALT 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 DeWALT factory service center or a DeWALT authorized service center. 15