Troubleshooting Codes - DeWalt DXCMH1608WB-CA Instruction Manual

Problem ..........................................................................................................................................Code
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
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

troubleshooting Codes

PossIBle solutIon
Unloader valve must be replaced. Contact a D
service center or a D
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.
21
WALT factory
e
WALT authorized service center.
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