1036100102L02 1904V002
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13 Tips for operators and service technicians
Any repairs exceeding routine maintenance may only be carried out by qualified personnel or
our service.
De-energise the unit prior to working on it or in the event of potential danger (e. g. pull the
mains plug) and prevent it from being switched back on again.
Fault
Probable cause
Solution
Compressor will not start
No mains voltage
i
Check the mains fuse; if neces-
sary, switch the circuit breaker
back on. If the fuse is defective,
replace it.
Undervoltage or overvoltage
i
Measure the mains voltage; call
an electrician if necessary.
Pressure switch not switched on
i
Switch on the pressure switch.
i
Inform a service technician.
Motor winding overheating pro-
tector tripped (overheating)
i
Allow the unit to cool down.
Humming noise from
motor
Motor capacitor is defective
i
Replace the capacitor.
The compressor does not
switch off
The compressor is too small, air
intake too high
i
Calculate the amount of air
required and install a larger
compressor if necessary.
Leakage in the compressed air
system
i
Locate and seal the leakage.
i
Inform a service technician.
Compressor switches on
from time to time even
though no air is being tak-
en for a consumer unit
Leak in the compressed air sys-
tem
i
Locate and seal the leak.
i
Inform a service technician.
Knocking or loud noises
on the compressor
Compressor unit defective
i
Disconnect all power from the
device and inform a service
technician.
Reduced delivery. The
compressor requires
longer to charge the pres-
sure vessel, see charging
times in "4 Technical data"
Air intake filter soiled
i
Replace the air intake filter at
least 1x per year. The air intake
filter must never be cleaned.
Water dripping from air
consumers
Maintenance work not carried out
regularly (without membrane dry-
ing unit)
i
Regularly drain the condensation
water from the pressure tank,
see "8.5 Draining the condensa-
tion water"
Defective membrane drying unit
i
Inform a service technician.
Troubleshooting
EN
Summary of Contents for H2A-160M
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