Troubleshooting Codes - DeWalt DWFP55120 Instruction Manual

Problem
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
CODE POSSIBLE CAUSE
1 Pressure switch does not shut off motor when
compressor reaches cut-out pressure
2 Pressure switch cut-out too high
3 Tube fittings are not tight enough
4 Defective air tank
5 Leaking seals

Troubleshooting Codes

POSSIBLE SOLUTION
Set the On/Off switch to OFF, if the unit does not shut off contact a D
factory service center or a D
Contact a D WALT factory service center or a D
e
center.
Tighten fittings where air can be heard escaping. Check fittings with soapy
water solution. Do Not Overtighten.
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 D WALT factory service center or a D
e
center.
15
Code
WALT authorized service center.
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WALT authorized service
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WALT authorized service
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WALT
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