Durr Dental Duo Tandem, Installation And Operating Instructions Manual

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Error Possible cause Remedy
Compressor does not switch
off or has difficulty reaching
the cut off pressure Excessive air extraction
❯
Check air requirements and
dimensioning of the compres-
sor.
Air intake filter dirty
❯
Replace the air intake filter.
Leak in the compressed air pipe
network
❯
Check the compressed air
pipe network, if necessary
disconnect the mains plug
and inform a service techni-
cian.
Leak in the compressed air lines
of the compressor station
❯
Check the pressure hoses on
the compressor, membrane
drying unit and distributor
block; if necessary disconnect
the mains plug and inform a
service technician.
Flow noise at the membrane
drying unit
❯
Check the pressure hoses on
the compressor; if necessary
inform a service technician.
Change in the delivery of the
compressor unit
❯
Disconnect the mains plug
and inform a service techni-
cian.
Compressor blows via the safety
valve,
The container pressure is not
displayed correctly on the oper-
ating panel
❯
Disconnect the mains plug
and inform a service techni-
cian.
Compressor switches on with-
out any compressed air being
extracted Leak in the compressed air pipe
system
❯
Check the compressed air
pipe system; if necessary dis-
connect the plug and inform a
service technician.
Leak in the compressed air lines
of the compressor
❯
Check the pressure hoses on
the compressor, membrane
drying unit and distributor
block; if necessary disconnect
the mains plug and inform a
service technician.
Fault button flashing Compressor unit defective
❯
Activate emergency mode:
press the fault button, (see
"12.8 Emergency mode").
Compressor runs with 1 unit
❯
Inform a service technician.
Fault button lit up Unit is defective
❯
Unplug the mains plug.
❯
Inform a service technician.
Knocking or loud noises on
the compressor Compressor unit defective
❯
Inform a service technician.
Troubleshooting
9000-610-72/30 1907V007 37
EN