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30
CODE POSSIBLE CAUSE POSSIBLE SOLUTION
22
Engine problem Contact a D
e
WALT factory service center or a D
e
WALT
authorized service center.
23
Engine or pump oil is low Add D
e
WALT synthetic compressor oil to pump. See
Compressor Pump Oil under Maintenance.
24
Regulator is not adjusted correctly for accessory being
used
It is normal for some pressure drop to occur when an acces-
sory is used, adjust the regulator as instructed in Regulator
under Features if pressure drop is excessive.
NOTE: Adjust the regulated pressure under flow conditions
while accessory is being used.
25
Damaged regulator Replace.
26
Detergent type oil being used in pump Drain oil and refill pump with D
e
WALT synthetic compressor
oil.
27
Extremely light duty cycles Run unit for longer duty cycles. It is recommended to run at
high throttle 50-75% of the run time and idle for 25% of the
run time.
28
Piston rings damaged or worn Contact a D
e
WALT factory service center or a D
e
WALT
authorized service center.
29
Cylinder or piston damaged or worn Contact a D
e
WALT factory service center or a D
e
WALT
authorized service center.
30
Compressor cylinder finish worn Contact a DeWALT factory service center or a D
e
WALT
authorized service center.
31
Water in pump oil Drain oil and refill pump with D
e
WALT synthetic compressor
oil.
32
Manual lock unloader lever in open position Rotate manual lock unloader lever to the closed perpendicu-
lar position.