Troubleshooting; 7�1 Twister (No� 1826); 7�2 Twister Venturi (No� 1827) - Renfert Twister Manual De Instrucciones

7

Troubleshooting

7.1 Twister (No. 1826)
Error
ON / OFF switch fails to
work.
Motor fails to start.
No, or insufficient vac-
uum (not in the green
range on the scale).
Vacuum release / venting,
too slow.
Vacuum pump doesn't
start.
The vacuum pump
switches on and off in-
termittently during the
mixing process.
7.2 Twister venturi (No. 1827)
Error
ON / OFF switch fails to
work.
Motor fails to start.
No, or insufficient
vacuum.
Vacuum release / venting,
too slow.
No vacuum being gener-
ated.
Permanent venting noise. • Solenoid valve fault�
Fluttering noise from the
silencer.
Cause
• Power not connected�
• Device fuse blown�
• Motor fault�
• Suction filter system plugged.
• Seal surfaces dirty�
• Solenoid valve fault�
• Vacuum pump fault�
• Suction filter system plugged�
• Solenoid valve fault�
• Bowl detection pin sticking�
• At < 100 % vacuum, the vacuum
pump will switch off once the set
vacuum has been reached�
Cause
• Power not connected�
• Device fuse blown�
• Motor fault�
• Compressor switched off�
• Operating pressure too low or too
high�
• Compressed air hose not connect-
ed, leaky or bent�
• Air hose too long�
• Square are of air hose too small�
• Suction filter system plugged.
• Seal surfaces dirty�
• Inlet filter plugged.
• Silencer plugged�
• Solenoid valve fault�
• Venturi nozzle plugged�
• Suction filter system plugged.
• Silencer plugged�
• Solenoid valve fault�
• Bowl detection pin sticking�
• Bowl detection pin sticking�
• Working pressure too low�
- 13 -
Solution
• Check the power supply�
• Replace the fuse (Sec� 6�4)�
• Have the device repaired�
• Have filter cleaned or changed (Sec. 6.3).
• Clean the seal surfaces (Sec� 6�2)�
• Have the device repaired�
• Have the device repaired�
• Have filter cleaned or changed (Sec. 6.3).
• Have the device repaired�
• Clean area around pin�
• Have the device repaired�
• 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�
Solution
• Check the power supply�
• Replace the fuse (Sec� 6�4)�
• Have the device repaired�
• Switch the compressor on�
• Check dynamic operating pressure
(see technical data, Sec� 8)�
• Switch off other consumers�
• Check the hose�
• Maximum length 2 m�
• Minimum inner diameter 4 mm�
• Have filter cleaned or changed (Sec. 6.3).
• Clean the seal surfaces (Sec� 6�2)�
• Change inlet filter (Sec. 6.5).
• Replace the silencer (Sec� 6�6)�
• Connect filter pressure regulator in series.
• Have the device repaired�
• Have the device repaired�
• Have filter cleaned or changed (Sec. 6.3).
• Replace the silencer� (Sec� 6�6)�
• Connect filter pressure regulator in series.
• Have the device repaired�
• Clean area around pin�
• Have the device repaired�
• Have the device repaired�
• Clean area around pin�
• Have the device repaired�
• Check dynamic operating pressure
(see technical data, Sec� 8)�
EN