Renfert 2921-0050, Manual

Page: 27 / 195

EN - 9 -
Error Possible cause Corrective action
“Change Filter” indicator
goes on shortly after
filters were replaced.
• Fine particle filter blocked.
• Suction hose blocked.
• Cross-section of the dust-
generating device’s hose fitting is
too small.
• Dust is too fine.
• Flow sensor defect.
• Replace the fine particle filter (Sec. 3.3.1).
• Remove obstruction from the suction hose.
• Adjust the sensitivity of the „Replace filter“
indicator(Chapter 2.7.1.).
• Adjust the sensitivity of the „Replace filter“
indicator (Chapter 2.7.1.)
• Carry out self-diagnosis (chapt. 3.5), at fault „E1“
equipment requires professional repair.
Dust bag ruptures. • The “Change Filter” indicator’s
sensitivity has not been adjusted
for the material being extracted.
• Reduce the sensitivity of the „Replace filter“
indicator (Chapter 2.7.1.).
Dust extractor fails to
start when a dustgenerat-
ing device is being used.
• Dust extractor not switched on.
• Dust-generating device not
plugged into the unit power outlet
on the Silent TS .
• Wrong operating mode selected.
• Automatic start feature’s threshold
value too high.
• Device fuse has blown.
• Automatic start feature fails to
detect the attached device’s
operation.
• Switch the dust extractor on (Sec. 2.2).
• Connect the dust-generating device to the Silent
TS (Sec. 1.4).
• Select the automatic mode (Sec. 2.5).
• Adjust the automatic start feature (Sec. 2.6).
• Check and reinstall the fuse.(Sec. 3.4).
• Some older handheld instruments do not generate
a sufficiently strong signal for the automatic start
feature. Switch the dust extractor to the continuous
mode.
Dust extractor starts,
although a connected
device is not being used.
• Automatic start feature’s threshold
value too low.
• Adjust the automatic start feature (Sec. 2.6).
Dust extractor fails to
stop when a connected
device is switched off.
• Dust-generating device not
plugged into the unit power outlet
on the Silent TS .
• Wrong operating mode selected.
• Activation threshold too low.
• Connect the dust-generating device to the Silent
TS
(Sec. 1.4).
• Select the automatic mode (Sec. 2.5).
• Adjust the automatic start feature (Sec. 2.6).
No satisfactory setting
of the automatic start
feature can be adjusted.
• Some older handheld instruments
do not generate a sufficiently
strong signal for the automatic
start feature.
• Switch the dust extractor to the continuous mode.
Extraction briefly starts
up when the unit is
switched on.
• Activation sensitivity too low. • Adjust the automatic start feature (Sec. 2.6).
Panels covering the fine
particle filter and the dust
drawer are difficult to
open.
• Lock bolts dirty. • Clean the lock bolts and lubricate them slightly, if
required.