Dewalt DXCMH9919910 Instruction Manual - Page 25

Troubleshooting Codes

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English Restricted air intake...9 Oil in discharge air...9, 19, 31 Knocking Noise...4, 10, 11, 12, 13, 14 Excessive belt wear...10, 11, 14, 15 Squealing sound...10 Moisture in pump crankcase...1, 3, 8, 17, 18, 19, 20, 21, 22 Excessive current draw...14, 23, 24 Compressor won't start in cold temperatures 17, 31, 32 Compressor stalls...25, 26, 27 Overheating...24, 30, 31 CODE POSSIBLE CAUSE 1 Fittings are not tight 2 Defective air tank 3 Leaking seals 4 Defective safety valve 5 Prolonged excessive use of air Troubleshooting Codes POSSIBLE SOLUTION 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 DeWALT factory service center or a DeWALT authorized service center. Operate safety valve manually by pulling on ring. If valve still leaks, it must be replaced. Decrease amount of air usage. 25

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25
English
Restricted air intake.
..................................................................................................................
9
Oil in discharge air
.....................................................................................................................
9, 19, 31
Knocking Noise
.........................................................................................................................
4, 10, 11, 12, 13, 14
Excessive belt wear
...................................................................................................................
10, 11, 14, 15
Squealing sound
........................................................................................................................
10
Moisture in pump crankcase
.....................................................................................................
1, 3, 8, 17, 18, 19, 20, 21, 22
Excessive current draw
.............................................................................................................
14, 23, 24
Compressor won’t start in cold temperatures
..........................................................................
17, 31, 32
Compressor stalls
......................................................................................................................
25, 26, 27
Overheating
...............................................................................................................................
24, 30, 31
Troubleshooting Codes
CODE
POSSIBLE CAUSE
POSSIBLE SOLUTION
1
Fittings are not tight
Tighten fittings where air can be heard escaping. Check fittings
with soapy water solution. DO NOT OVERTIGHTEN.
2
Defective air tank
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.
3
Leaking seals
Contact a D
E
WALT factory service center or a D
E
WALT authorized
service center.
4
Defective safety valve
Operate safety valve manually by pulling on ring. If valve still
leaks, it must be replaced.
5
Prolonged excessive use of air
Decrease amount of air usage.