Renfert Twister evolution - Troubleshooting; Twister evolution (Nr. 1828); Twister evolution venturi (Nr. 1829)

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8. Troubleshooting
8.1 7ZLVWHUHYROXWLRQ (Nr. 1828)
Error Cause Solution
ON/OFF switch fails to
work.
 Power not connected.  Check the power supply.
 Device fuse blown.  Replace the fuse (Sec. 7.4).
Motor fails to start.
 Motor fault.  Have the device repaired.
1RRULQVXI¿FLHQWYD-
cuum (not in the green
range on the scale).
 6XFWLRQ¿OWHUV\VWHPSOXJJHG  +DYH¿OWHUFOHDQHGRUFKDQJHG6HF
 Seal surfaces dirty.  Clean the seal surfaces (Sec. 7.2).
 Solenoid valve fault.  Have the device repaired.
 Vacuum pump fault.  Have the device repaired.
Vacuum release / venting,
too slow.
 6XFWLRQ¿OWHUV\VWHPSOXJJHG  +DYH¿OWHUFOHDQHGRUFKDQJHG6HF
 Solenoid valve fault.  Have the device repaired.
Vacuum pump doesn‘t
start.
 Bowl detection pin sticking.  Clean area around pin.
 Have the device repaired.
The vacuum pump
switches on and off
intermittently during the
mixing process.
 At <100% vacuum, the vacuum
pump will switch off once the set
vacuum has been reached.
 None, If the vacuum should drop due to
seepage, the vacuum pump will automatically
switch back on until the set vacuum level has
been reached.
8.2 7ZLVWHUHYROXWLRQYHQWXUL (Nr. 1829)
Error Cause Solution
ON/OFF switch fails to
work.
 Power not connected.  Check the power supply.
 Device fuse blown.  Replace the fuse (Sec. 7.4).
Motor fails to start.
 Motor fault.  Have the device repaired.
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vacuum.
 Compressor switched off.  Switch the compressor on.
 Operating pressure too low or too
high.
 Check dynamic operating pressure
(see technical data, Sec. 9).
 Switch off other consumers.
 Compressed air hose not connec-
ted, leaky or bent.
 Check the hose.
 Air hose too long.  Maximum length 2 m.
 Square are of air hose too small.  Minimum inner diameter 4 mm.
 6XFWLRQ¿OWHUV\VWHPSOXJJHG  +DYH¿OWHUFOHDQHGRUFKDQJHG6HF
 Seal surfaces dirty.  Clean the seal surfaces (Sec. 7.2).
 ,QOHW¿OWHUSOXJJHG  &KDQJHLQOHW¿OWHU6HF
 Silencer plugged.  Replace the silencer (Sec. 7.6).
 &RQQHFW¿OWHUSUHVVXUHUHJXODWRULQVHULHV
 Solenoid valve fault.  Have the device repaired.
 Venturi nozzle plugged.  Have the device repaired.
7.6 Changing the silencer
7ZLVWHUHYROXWLRQYHQWXUL only
1. Unscrew and remove silencer (11).
2. Fit and screw in new silencer.
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11
7.7 Spare Parts
For the order numbers of consumables and spare parts please refer to the spare parts list at the end of this manual.
Serial number, production date and unit version can all be found on the unit‘s type plate.
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