EFA 001 606 885, Operation Manual

Operating instructions 

11

RECTIFYING MALFUNCTIONS 

Malfunction

Cause

Remedy

•

Oil level rises 

•

Drops of water in oil 

•

Oil has milky colour 

Water has collected in the crank 
housing. Operating temperature is 
not being reached because the 
switch-on times are too short. 

Change oil at once 
Use a smaller compressor if 
necessary 

Water has collected in the crank 
housing because the machine is 
installed in a damp place. 

Change oil at once 
Select a dry place for installation  

•

Motor cut-out has been triggered 

Ambient temperature is too high 

Ventilate the room or choose a 
cooler place for installation 

Supply voltage is wrong 

Ask a qualified electrician to check 
supply voltage and cross-sections of 
the supply wiring. 

Valves are defective 

Replace the valves 
Recommendation: call in EFA 
Service-Department 

•

Low air delivery 

Suction filter clogged 

Clean / replace suction filter 

•

Excessive oil consumption 

Wrong oil is being used 

Check the type of oil 

Wear between the piston-rings and 
the cylinder walls 

Replace the piston rings 
Recommendation: call in EFA 
Service-Department 

•

Air is escaping through the safety 
valve on the storage tank 

Pressure switch is set too high 

Check the pressure switch settings  

•

Air is escaping from the 
depressurisation pipe on the 
pressure switch or the solenoid 
valve 

Non return valve is defective 

Check the non return valve 
Recommendation: call in EFA 
Service-Department 

•

Air is escaping from the 
depressurisation pipe of the 
pressure switch or the solenoid 
valve whilst compressor is 
running. 

Air relief valve or pressure switch 
dirty or defect 

Check air relief valve 
Recommendation Call in EFA 
Service Department 

•

Automatic condensate drain 
(option) lets out water constantly 

Automatic condensate drain is 
polluted 

Clean condensate drain (this can not 
be claimed unter quaranty) 

MAINTENANCE – OVERALL VIEW 

After 100 working 
hours, max. 6-8 weeks 
after inital start 

After 500 working 
hours, at least once a 
year 

After 2000 working 
hours, at least every 2 
years 

Change Oil 

•

•

•

Check air filter for pollution 

•

•

•

Regulate tension of the V-belt 

•

•

•

Clean automatic condensate drain 
(option) on air receiver 

•

•

•

Check valve for erosion 

•

 The given intervals are based on experience. They can differ considerably depending on the 

operating conditions. 

 Always tighten all screw connections that have been loosened during maintenance work.