compressed air compressor Tel: 01480 217904
Fax: 01480 217409

Unit 2 Steel Close
St Neots, PE19 8TT

Trouble-shooting guide to piston air compressors

For help and advice with your air compressor call 01480 217904 or use our contact page



Fault
Cause
Remedy

Overheating





Thermal cut out switch tripping








Oil carry over




Water in lines


Overpressure


Motor buzzes but wont start


Intercooler safety valve lifting



Air leaking from pressure switch
PRV (machine stopped)


Reduction in efficiency

Insufficient Ventialtion
Air filter element blocked
Low lubricant levels (oil level)
Incorrect direction of rotation (3phase)
Motor fan broken or blocked

Compressed air on top of head
Low temperature
Voltage too low
Use of extension lead
Thermal overload
Overload setting too low (3phase)
Capacitor burnt out
Motor down to earth

Piston rings worn
Bores scratched or worn
Overuse
Insufficient ventilation

Air receiver full of condensate
No air treatment

Pressure switch set too high
NRV blocked

Capcitor (single phase)
Loss of phase (3 phase)

Split head gasket
Faulty delivery valve
Warped head

Defective relief valve
NRV pastel worn
Rilan tube broken

Increase in air consumption
Air leaks in pipework
Air filter element blocked
Slipping drive belt
Head gasket broken
Piston rings worn
Bores worn
Delivery valve broken / sticking

Rectify ambient conditions
Clean or replace air filter
Top up or replace oil
Change around L1 & L2
Clean or replace fan

Check NRV & Pressure switch
Rectify ambient conditions
Check incoming supply
Use dedicated supply
Replace
Check data plate & FL amps
Replace
Repair or replace

Replace
Replace
Reduce demand or upgrade
Rectify ambient conditions

Drain condensate
Install dryer or filters

Rectify or replace
Rectify or replace

Replace
Check fuses, replace.

Replace
Replace
Replace

Replace
Replace
Replace

Reduce demand or upgrade
Cure air leaks
Clean or replace
Check belt tension
Replace
Replace
Replace
Replace

For help and advice with your air compressor call 01480 217904 or use our contact page

 

www.airpowered.co.uk
Company Reg. 03965250

air compressor email
VAT Reg. 745 6488 91