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
	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

TROUBLESHOOTING

Problem