Troubleshooting Codes - DeWalt D55684 Instruction Manual

CODE POSSIBLE CAUSE
1 Unloader valve does not release pressure
when air tank reaches blow-off pressure
2 Fittings are not tight
3 Defective unloader valve
4 Defective air tank
5 Leaking seals
6 Defective safety valve
7 Prolonged excessive use of air
8 Compressor is not large enough for acces-
sory
9 Hole in air hose
10 Unloader valve restricted
11 Unit operating in damp or humid conditions Move unit to a dry well ventilated area.
12 Restricted air intake filter

Troubleshooting Codes

POSSIBLE SOLUTION
Unloader valve must be replaced. Contact a D
or a D WALT authorized service center.
E
Tighten fittings where air can be heard escaping. Check fittings with soapy
water solution. DO NOT OVERTIGHTEN.
Turn off engine, rotate manual lock unloader lever to the closed perpendicular
position. If air leaks out of air tank through unloader valve, replace unloader
valve.
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.
Operate safety valve manually by pulling on ring. If valve still leaks, it must
be replaced.
Decrease amount of air usage.
Check the accessory air requirement. If it is higher than the SCFM or pres-
sure supplied by your air compressor, a larger compressor is needed to
operate accessory.
Check and replace air hose, if required.
Remove, clean or replace.
Clean or replace air intake filter.
23
WALT factory service center
E
WALT authorized service
E