Operating instructions
Trouble shooting
102620 • 05/2019
The switching frequency of the motor is too high.
Low delivery – the setpoint pressure is not made.
The compressor turns too hot.
The compressed-air reservoir is too small.
Use a larger compressed-air reservoir.
The pressure switch has been set wrongly.
Check the pressure switching points.
Too much condensation water in the com-
pressed-air reservoir / compressed-air duct-
work system.
Drain the condensation water (cf. chapter
5.4).
As a preventive measure, fit an automatic
condensation water drain system (BLITZ
accessories).
Check the valves, and replace, if and
when necessary.
The suction filter is soiled.
Clean the filter cartridge and replace, if
and when necessary.
Pipes and fittings are leaking.
Tighten the screws and fittings.
Replace the seals.
The cylinder head seal is leaking.
Tighten the cylinder head screws.
Replace the cylinder head seal.
The piston, piston rings, and the cylinder are
worn.
Check the components.
Replace the worn parts.
The pressure switch has been set wrongly.
Check the pressure switching points.
The air demand is higher than the delivery
volume of the compressor.
Check the air demand.
Expand the compressed air supply.
Ambient temperature is too high.
Improve the room ventilation.
Select a cooler location.
The cooling air volume is not available or too
low.
The space between fan and wall is to
small (cf. chapter 3.1 “Mounting condi-
tions”).
Check the fan cowl opening for soiling,
and clean, if and when necessary.
Wrong rotating direction of the fan.
Check the rotating direction of the fan
(cf. chapter 3.3 “Checking the rotating di-
rection”).
The compressor valves are defective.
Check the compressor valves, and replace
them, if and when necessary.
The ultimate pressure is too high.
Check the pressure switching points.
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