NO,
SILENT
ALL OK
NO, BANGING NOISE
HEARD
YES
RESTART
ALL OK
NO
Is mixer running?
(Shaft of mixer turning when viewed
from front)
YES, BUT KEEPS STOPPING AFTER
PRODUCING SOME MATERIAL
Restart
SET MATERIAL /
BLOCKAGE FOUND
Return to above
action and
inspect
NO
CHANGE
OR
REPEAT
RESTART
ALL LOOKS
IN ORDER
No Change, still
humming sound
Humming sound
coming from
mixer motor?
Actions
Actions
Action
Action
Action
Check RCDs in panel
not tripped
Check panel is turned
on (Main Isolator)
Ensure cleaning/
working toggle switch
is in correct “working”
position
Check site electricity
supply is live
Plugs are pushed in
correctly
(all plugs)
Check condition of
cables
Check key switch light
indicator - if red lights
shows clean out mixer
then call CPI
Rotation Indicator Light
showing - Polarity of site
electrical supply has
changed, site electrician
required
Plugs are pushed
in correctly (all
plugs)
Check condition
of cables and
plugs
Check RCDs in
panel not tripped
Check site
electricity supply
is live
Unplug vibrator
if in use
Check for correct
rotation of motor
Actions -
Clean out
then call
CPI for
advice
Service
required,
Call CPI
No change,
Call CPI
Isolate power and
clean out mixer
Check supply
RSCs for earth
phase, Neutral
and Earth
(Site Electrician)
Strip down and carry
out full cleandown and
inspect
Call CPI
Call CPI
POSSIBLE WEAR
(see reference photos
below)
Worn Dosing Screw
Worn Scraper
Worn Mixing Flight
CPI EuroMix has produced a flow chart to help you diagnose
faults and help you keep your silo working. It is often the case that
the cause of a fault is a simple thing that can easily be rectified by
the operator.
Common faults include:
• Water hoses being connected incorrectly
• Power supply not being energised
• Water supply turned off at stop cock
• Silo product handle is in the closed position
• Electrical Safety Devices tripped
FAULT DIAGNOSIS FLOW CHART
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