Operating Instructions and Parts Manual
Troubleshooting Guide
SyMPtoM
Compressor will not run
Fuses blow/circuit breaker
trips repeatedly
Tank pressure drops when
compressor shuts off
Air output lower than
normal/low discharge
pressure
Excessive moisture in
discharge air
Compressor runs
continuously
Motor runs but no air output
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CAuSe
1. No electrical power
2. Breaker open
3. Pressure switch bad
4. Motor over worked
5. Tank pressure above cut-in
1. Incorrect size fuse, circuit overloaded
2. Worn check valve
1. Loose connections (fittings, tubing,
etc.)
2. Open tank drain
1. Air leaks in piping (on machine or in
outside system)
2. Piston ring worn
3. Excessive air usage
4. Open tank drain
1. Excessive water in tank
2. High humidity
1. Defective pressure switch
2. Excessive air usage
Belt worn
SoLutIon
1. Plugged in? Switch on? Check fuse/breaker
2. Reset, determine cause of problem
3. Replace
4. Turn off, let cool, turn on.
5. Bleed tank pressure down to cut-in.
1. Check for proper fuse, use time-delay fuse.
Disconnect other electrical appliances from circuit
or operate compressor on its own branch circuit
2. Replace
Do not disassemble check valve with
air in tank; bleed tank
1. Check all connections with soap and water
solution. Tighten; or remove and apply pipe dope
or pipe tape to the threads, then reassemble.
2. Close drain
1. Check all connections with soap and water
solution. Tighten; or remove and apply pipe dope
or pipe tape to the threads, then reassemble.
2. Replace
3. Decrease air usage; compressor not large enough
for air requirement
4. Close tank drain
1. Drain tank
2. Move to area of less humidity; use air line filter
1. Replace switch
2. Decrease air usage; compressor not large enough
for air requirement
Replace belt