TROUBLE SHOOTING GUIDE
NOTE: REMOVE POWER SOURCE AND DRAIN TANK PRESSURE PRIOR TO MAKING ANY
REPAIRS OR ADJUSTMENTS.
Problem
Cause
Correction
Unit will not run
Tank pressure exceeds “cut in” pressure . . . . . . . .Once pressure drops below “cut in” pressure, the unit will start.
Extension cord causing excessive amp draw . . . . .Check guidelines for proper cord gauge
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(use of extension cords is not recommended).
Fuse or circuit tripped . . . . . . . . . . . . . . . . . . . . . . . . . .Replace fuse or breaker
Unit not turned on or not plugged in . . . . . . . . . . . . . .Check pressure switch and verify that it is in the Auto position.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Verify that unit is plugged in.
Air filter plug not removed . . . . . . . . . . . . . . . . . . . . . .Remove air plug and install Air filter.
Cold weather conditions . . . . . . . . . . . . . . . . . . . . . . . .Place compressor in warmer environment for at least 30 minutes
(typically temperatures below freezing) . . . . . . . . . .then try restarting.
Air leaks at fittings
Fittings loose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tighten fitting. Check with soapy water. DO NOT OVER TIGHTEN.
Air leak at pressure switch
Clogged check valve . . . . . . . . . . . . . . . . . . . . . . . . . . .Remove and clean check valve
Unit will not build pressure
Application requires excessive air demand . . . . . . .Reduce demand on compressor
Loose head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tighten bolts on head
Blown gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Remove head and check for broken or deformed gasket. Replace
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .if needed.
Unit will not build pressure
Worn or broken valves . . . . . . . . . . . . . . . . . . . . . . . . . .Remove head and replace valves.
Air leak at tank or air tank
Damaged air tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
welds.
-10-
DO NOT DRILL INTO, WELD OR
OTHERWISE MODIFY AIR TANK.
DAMAGED OR MODIFIED TANKS
CAN RUPTURE. REPLACE TANK
IMMEDIATELY.
