Insufficient pressure at point of use OR Receiver pressure builds up slowly.
  1. Excessive Air Requirement.
  2. Restricted or Dirty Air Intake Filter.
  3. Worn or broken low pressure intake or discharge valves.
  4. Worn valve OR blown gasket.
  5. Defective check valve
  6. Worn piston rings
  7. Loose tube or fittings
  1. Use bigger air compressor or limit air usage to compressor capacity by using fewer or smaller air tools.
  2. Clean or replace air intake filter.
  3. Clean inlet and exhaust valves.
  4. Replace new gasket.
  5. Replace check valve.
  6. Replace new piston rings.
  7. Check and tighten fittings.
Higher pressure or air leakage form the pressure relief valve
  1. Output pressure setting higher than rated pressure
  2. Pressure switch or Unloading valve failure
  3. Wrong pressure relief valve or failure
  1. Adjust pressure setting
  2. Replace
  3. Adjust pressure or replace
Oil in the air or excessive oil consumption
  1. To much oil in the crankcase
  2. Wrong oil seal
  3. Wrong viscosity oil
  4. Piston ring or cylinder wall abrasion
  1. Drain oil and fill to proper level
  2. Replace the correct oil seal
  3. Replace and use correct viscosity oil
  4. Replace
Unusual vibration
  1. Working pressure was too high
  2. The pulley is not straight or loose
  3. Unstable surface
  1. Lower the working pressure
  2. Adjust or lock
  3. Move to a level surface or add isolation pads
Excess noise during operation
  1. Loose valve seat
  2. Piston impact cylinder head
  1. Tighten valve seat
  2. Replace thick gasket
Compressor unit overheats
  1. Working pressure was too high
  2. Insufficient or inappropriate lubricant
  3. Compressor location temperature is too high or poor ventilation
  1. Lower the working pressure
  2. Add the correct lubricant
  3. Relocate to a well-ventilated place
Pressure switch unloading valve does not function or leak air when unit is operating or not operating
  1. Pressure switch unloading valve may be dirty or faulty
  2. Check valve may be dirty or faulty
  1. Clean, or replace unloading valve
  2. Clean, or replace check valve
Compressor won't start
  1. Loose electrical connection or fuse blown
  2. Ircuit breaker tripped
  3. Motor failure or overheated
  1. Check wiring connection or replace the fuse
  2. After cooling down, press the circuit breaker button again.
  3. Ask for maintenance
Motor can’t start but with abnormal sound
  1. Using too long extension cable causes pressure drop
  2. Insufficient voltage
  3. Motor overload
  4. Motor crank stuck
  5. Motor failure
  1. Change to a shorter extension cable (Recommended to use air hose instead of extension cable)
  2. Ask electricity company for maintenance
  3. Release the pressure inside the air tank to make the motor start easier
  4. Ask for maintenance
  5. Ask for maintenance