TROUBLESHOOTING

Problem

Possible Cause

Solution

 

 

 

Air leak from the valve of the pressure

Check valve does not perform its

Unscrew the hex-shaped head of the

switch

function correctly due to wear or dirt on

check valve, clean the housing and the

 

the seal

special rubber disk (replace if worn).

 

 

Re-assembler and tighten carefully

 

Condensate drainage cock open

Close the condensate drainage cock

 

Rilsan hose not inserted correctly in

Insert the Rilsan hose correctly inside

 

pressure switch

the pressure switch

 

 

 

Reduction of efficiency, frequent start-

Excessively high consumption

Decrease the demand of compressed

up. Low pressure values

 

air

 

Leaks from joints and/or pipes

Change gaskets

 

Clogging of the suction filter

Clean/replace the suction filter

 

Slipping of the belt

Check V-belt tension

The motor and/or the compressor

Insufficient ventilation

Improve ambient conditions

overheat irregularly

Closing of air ducts

Check and if necessary clean the air

 

 

filter

 

Insufficient lubrication

Top up or change oil

After an attempt to start the

Start-up with head of the compressor

Release the compressor head by using

compressor, it stops due to tripping of

charged

the pressure switch push button

the thermal cutout caused by forcing of

Low temperature

Improve ambient conditions

the motor

Voltage too low

Check that the mains voltage matches

 

 

 

that of the dataplate. Eliminate any

 

 

extensions

 

Incorrect or insufficient lubrication

Check level, top up and if necessary

 

 

change the oil

 

Inefficient electrovalve

Take compressor to the service center

 

 

 

During operation, the compressor

Tripping of the thermal cutout of the

Check level oil

stops for no apparent reason

motor

Operate on the lever of the pressure

 

 

switch returning this to the OFF

 

 

position.

 

 

Reset the thermal cutout and restart.

 

 

If the fault persists, take the

 

 

compressor to the service center

 

Electric fault

Take compressor to the service center

 

 

 

When operating, the compressor

Faulty capacitor

Have the capacitor replaced

vibrates and the motor emits an

 

 

irregular buzzing sound. If it stops, it

 

 

does not restart although the sound of

 

 

the motor is present

 

 

 

 

 

Irregular presence of oil in the network

Too much oil inside the unit

Check oil level

 

Wear on segments

Take compressor to the service center

 

 

 

Leaking of condensate from the vent

Presence of dirt/grit inside the cock

Clean the cock

cock

 

 

 

 

 

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Astro Pneumatic 68127 operating instructions Troubleshooting