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· Before any operation on the compressor, disconnect the plug from the socket.
· Empty air tank of air before dismantling any part of compressor unit's pressure sys-
tem.
· Following operations must be done by a specialist.
3.1Thecompressordoesnotstart
· a) No power from mains. Check fuses and socket.
· b) Breakage or loose joints in electrical connections. Check with tester for continuity.
· c) Pressure in air tank too high for activation of pressure switch. The pressure switch
makes circuit only when pressure has dropped to preset start pressure.
· d) Leaky non-return valve. Take off the flexible pressure pipe to see if air leaks out
from the valve. If so, unscrew the valve cap (Fig.4 item 1), clean the rubber disk (item
2) and his place with a dry cloth and assembly the whole with care . If the leakage per-
sists, the whole valve must be replaced.
· e) The starting relay is defective. Call the manufacturer.
· f) Condenser defective. Replace it.
· g) The therrmal relay has switched off the compressor due to overheating. When
cooled, the compressor will automatically turn on at the suitable temperature.
3.2Thecompressordoesnotreachthemaximumpressure
· a) Check any air leak (See point 3.6).
· b) Check the pressure switch efficency and if necessary adjust it (See point 2.2
Pressure adjustment).
· c)The non-return-valve is clogged so creating a flow restriction.
Clean or replace the valve.
3.3Thecompressorworks,butpressuredoesnotincreaseintank(orincreasetoo
slowly)
· a) Air filter clogged. Clean or replace.
· b) Check any air leak (See point 6).
3.4Thecompressorworksbutdoesnotload
· The defect can be due to a valve or a gasket break. Replace the damaged part imme-
diately.
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Troubleshooting
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WARNING
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