Troubleshooting Codes - DeWalt D55250 Instruction Manual

5135176-00,01Gas Hand Carry
C o d e Possible Cause
1 Clogged or dirty inlet and/or discharge line filter.
2 Lubricant viscosity too low.
3 Air leaks in air discharge piping.
4 Lubricant viscosity too high.
5 Lubricant level too low.
6 Detergent type lubricant being used.
7 Extremely light duty cycles.
8 Compressor pump check valve is loose, broken,
or has carbon buildup.
9 Carbon build up on top of compressor pump piston.
1 0 Compressor pump piston rings damaged or worn
(broken, rough, or scratched).
Compressor pump piston rings show excessive end gap or
side clearance.
Compressor pump piston rings not seated, stuck in grooves
or end gaps are not staggered.
11 Compressor cylinder or piston scratched, worn, or scored.
1 2 Compressor connecting rod, piston pin,
or crankpin bearings worn or scored.
1 3 Compressor crankshaft seal worn or crankshaft scored.
1 4 Extremely dusty atmosphere.
1 5 Ambient temperature too low.
1 6 Worn compressor cylinder finish.
1 7 Air compressor is not large enough for air required.
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TROUBLESHOOTING CODES

Possible Solution
Clean or replace air inlet or discharge line filter.
Drain existing lubricant and refill with D
Check tubing and connections.
Drain existing lubricant and refill with D
Add lubricant to crankcase to proper level. Check for bearing damage.
Drain existing lubricant and refill with D
Run unit for longer duty cycles.
Inspect valves. Clean or replace as required.
Clean piston. Repair or replace as required.
Install new rings.
Repair or replace as required.
Inspect all. Repair or replace as required
Replace seal or crankshaft assembly.
Install more effective filtration or relocate the compressor.
Relocate compressor to warmer environment. Ensure that D
synthetic oil is in crankcase.
Deglaze cylinder with 180 grit flex-hone.
Check accessory air requirement. If higher than the CFM or pressure
supply of air compressor, then larger air compressor is required.
11
WA LT Synthetic lubricant.
E
WA LT Synthetic lubricant.
E
WA LT Synthetic lubricant.
E
WA LT
E