Troubleshooting Chart - Husky WL6500 Series Operating Instructions Manual

Oilless Compressors

Troubleshooting Chart

Symptom
Compressor will not run
Motor hums but cannot
run or runs slowly
Fuses blow/circuit
breaker trips repeatedly
CAUTION
!
Never use an extension
cord with this product
Tank pressure drops
when compressor shuts
off
Air output lower than
normal/low discharge
pressure
Possible Cause(s)
1. No electrical power
2. Breaker open
3. Pressure switch bad
4. Check valve defective
1. Poor contacts, line voltage incorrect
2. Shorted or open motor winding
3. Defective check valve or unloader
1. Incorrect size fuse, circuit overloaded
2. Defective check valve or unloader
1. Loose connections (fittings, tubing,
etc.)
2. Loose drain cock
3. Check valve leaking
1. Air leaks in piping (on machine or in
outside system)
2. Piston ring broken
Corrective Action
1. Plugged in? Check fuse/breaker or motor overload
2. Reset, determine cause of problem
3. Replace
4. Remove and replace check valve
DANGER
!
1. Check connections, check with voltmeter
2. Replace motor
3. Replace or repair
DANGER
!
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 or repair
DANGER
!
1. Check all connections with soap and water solution
and tighten
2. Tighten
3. Disassemble check valve assembly, clean or replace
DANGER
!
1. Replace leaking components or tighten as necessary
2. Replace
6
Do not disassemble check valve
with air in tank; bleed tank
Do not disassemble check valve
with air in tank; bleed tank
Do not disassemble check valve
with air in tank; bleed tank
Do not disassemble check valve
with air in tank; bleed tank