Renfert SILENT C2, Руководство пользователя, Страница: 19 / 29

EN
If the dust drawer is not emptied, the “Dust drawer full” and “FULL” symbols are still shown in the
display. After switching the device off and on again, a 3 x acoustic signal is used to indicate the
emptying of the dust drawer.
6.3 Change Fine Filter
The effectiveness of the filter cleaning is determined by monitoring the flow rate (internal pressure sen -
sor)�
If a filter cleaning is required several times in succession after less than 2 hours, this means that the fine
filter is so highly clogged that the filter cleaning does not show sufficient effect and the fine filter has to be
changed�
This is indicated as follows:
♦ The display shows “FILt”
♦ For a period of 15 min�, 2 long beeps are sounded for 3 min at a time�
The error message can be switched off by switching off the suction�
If requested to change the fine filter or the suction performance does not improve substantially or
only for a short period, the fine filter must be changed soon.
Further operation can lead to damage to the device.
When replacing the fine filter, pay attention to the correct fit, otherwise leaks will occur. Please refer to the
assembly instructions at the end of the manual, which are also included with the new fine filer.
6.4 Self-diagnosis
With the help of the self-diagnosis, the control system checks the function of the turbine and pinch valves
as well as parts of the electronics�
Self-diagnosis can be started manually�
If no fault is detected, the suction is ready for operation after the self-diagnosis has finished.
If an error is detected, an indication is shown in the display�
Perform self-diagnosis:
⇒ Press Menu key (20) 1 x�
♦ The symbol - self-diagnosis - (21) blinks�
⇒ Press Enter key (30)�
♦ Self-diagnosis starts�
♦ The self-diagnosis symbol is shown in the display and a dash flashes over the screen�
♦ The suction turbine runs at different suction levels and the pinch valves open and close in various
combinations�
No error:
♦ Suction is in standby mode�
Error occurred
♦ The error is shown in the display�
⇒ Solve error (see chapter 7)�
⇒ Press Enter key (30)�
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