Troubleshooting
14 Tips for operators and service technicians
Any repairs exceeding routine maintenance may only be carried out by qualified personnel or our
service.
WARNING
Infection due to contaminated unit
❯
Clean and disinfect the suction before working on the unit.
❯
Wear protective equipment when working (e. g. impermeable gloves, protective goggles and
mouth and nose protection).
Prior to working on the unit or in case of danger, disconnect it from the mains.
Error Possible cause Remedy
Device does not start
No mains voltage
❯
Check the mains voltage. *
❯
Check the fuses and replace if
necessary. *
Undervoltage
❯
Measure the supply voltage;
call an electrician if necessary.
*
No start signal
❯
Check the control voltage at
the signal input. *
Capacitor defective
❯
Measure capacitance and
replace if necessary. *
Turbine is blocked by solid parti-
cles or sticky soiling
❯
Disassemble the unit and
clean the turbine. *
The unit generates unusual
noises
Solid particles in the turbine
chamber
❯
Disassemble the unit and
clean the turbine and housing.
*
Water leaking from the
exhaust air connection
Membrane valve blocked
❯
Check the membrane valve at
the waste water connection
and if necessary clean or
replace. *
Foam in turbine due to use of
incorrect cleaning and disinfec-
tant agents
❯
Use non-foaming cleaning
and disinfectant agents.
Build-up of condensate in the
exhaust air line
❯
Check the pipe system; avoid
over-cooling. *
Waste water line/siphon trap
blocked
❯
Clean the waste water line/
siphon trap. *
Troubleshooting
7119100007L02 1909V001 35
EN
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