Troubleshooting Guide
This section provides a list of the more frequently encountered malfunctions, their causes and corrective actions.The operator or maintenance personnel can perform some corrective actions, and others may require the assistance of a qualified DeWalt technician or your dealer.
Problem | Code |
Excessive air tank | 1 |
Air leaks | 2 |
Continuous air leak at unloader valve | 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 |
Compressor is not supplying enough air to operate accessories | 2, 7, 8, 9, 10, 12, 13 |
Restricted air intake | 12 |
Excessive vibration | 14, 15 |
Knocking Noise | 6, 13, 14, 15, 16, 17, 18, 19 |
Excessive belt wear | 13,14,16,19,20 |
Squealing sound | 13 |
Engine will not run | 21, 22, 23, 34 |
Pressure reading on the regulated pressure gauge drops when an accessory is used | 24 |
Regulator knob has continuous air leak | 25 |
Regulator will not shut off air outlet | 25 |
Moisture in pump crankcase | 2, 5, 11, 26, 27, 28, 29, 30, 31 |
Pump will not run | 32 |
Air tank pressure will not build | 32, 33 |
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