Troubleshooting Guide - Craftsman 218.10012 Operator's Manual

Troubleshooting Guide

WARNING!
The air compressor should be turned off and unplugged from the power source before any mainte-
nance is performed as well as the air bled from the tank and the unit allowed time to cool. Personal
injuries could occur from moving parts, electrical sources, compressed air, or hot surfaces.
PROBLEM POSSIBLE CORRECTION
Air leaks at the check A defective check valve results in a constant air leak at the pressure relief
valve or at the pres- valve when there is pressure in the tank and the compressor is shut off.
sure relief valve. Drain the tank, then remove and clean or replace the check valve.
Air leaks between Be sure of proper torque on head bolts. If leak remains, contact a service
head and cylinder. technician.
Air leak from safety Operate the safety valve manually by pulling on the ring. If the valve con-
valve. tinues to leak when in the closed position, it should be replaced.
Pressure reading on If there is an excessive amount of pressure drop when the accessory is
the regulated pressure used, replace the regulator.
gauge drops when an NOTE: Adjust the regulated pressure under flow conditions (while
accessory is being used). It is normal for the gauge to show minimal
accessory is used.
pressure loss during initial use of the tool.
Excessive tank pres- Move the Auto-On/Off lever to the Off position. If the unit doesn't shut off,
unplug it from the power source and contact a service technician.
sure.
Motor will not start. Make sure power cord is plugged in and the switch is on. Inspect for the
proper size fuse in your circuit box. If the fuse was tripped, reset it and
restart the unit. If repeated tripping occurs, replace the check valve or
contact a service technician.
Excessive moisture in Remove the water in the tank by draining after each use. High humidity
environments will cause excessive condensation. Utilize water filters on
the discharge air.
your air line.
NOTE: Water condensation is not caused by compressor malfunction. Be
sure the compressor's air output is greater than your tool's air
consumption rate.
Air leaks from the tank Never drill into, weld or otherwise modify the air tank or it will weaken.
body or tank welds. The tank can rupture or explode. Compressor cannot be repaired. Dis-
continue use of the air compressor.
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