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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

Compressor does not start or restart

16,17,18,19,20,36

Unit does not or is slow to come up to speed

3,8,11,12,14,15,20,21,22,24,25,31

Air compressor not making enough air

1,3,7,8,9,10,11,21,24,25,28,29

Insufficient pressure at air tool or accessory

1,3,7,8,9,10,11,21,24,25,27,28,29

High oil consumption

2,6,9,10,11,12,15,30,32

Unit runs excessively hot

1,2,4,5,10,11,12,13,15,19,30

Excessive starting and stopping

7,20,21,24,25,29

Excessive noise during operation

2,3,4,5,8,9,10,11,12,15,25,29,30,31

Moisture in discharge air

34,35

Moisture in crankcase or "milky" appearance in petroleum lubricant or rusting in cylinders

6,7,9,10,15,25,26,33,35

Oil in discharge air (oil pumping)

2,6,8,9,10,11,15,31,32

Oil leaking from shaft seal

12

Safety relief valve "pops"

22,23

Air leaks at pump

24,25

Air leaks at fittings

25

Air leaks from tank

26

Abnormal piston ring or cylinder wear

2,4,5,6,9,10,11,13

14

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Epson D55170 manual Troubleshooting Guide, Problem Code

D55170 specifications

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