DKL CHAIRS L2-ECO, Operating Instructions Manual

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9000-606-39/30 1709V004
15
11 Tips for operators and service technicians
Any repairs above and beyond routine maintenance must only be carried out by suitably quali-
fied personnel or by one of our service technicians�
Prior to working on the device or in case of danger, disconnect it from the mains (e� g� pull the
mains plug)�
WARNING
Infection due to contaminated unit
i
Clean and disinfect the suction before working on the unit�
i
Wear protective equipment when working (e� g� impermeable gloves, protective goggles
and mouth and nose protection)�
Fault Probable cause Solution
Device does not start No power supply
i
Check power supply� *
i
Check the fuses and replace if
necessary� *
No start signal
i
Check the control voltage at the
signal input� *
Suction power too weak or
interrupted
Coarse sieve is blocked on the in-
let of the aspiration
i
Clean the coarse sieve�
Place selection valve not or in-
completely open
i
Check the control voltage� *
i
Clean the place selection valve�
*
* Only by customer services service technicians�
Troubleshooting
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