dosatron D3 Series - Troubleshooting; Motor piston

©
DOSATRON INTERNATIONAL S.A.S / 59
©
DOSATRON INTERNATIONAL S.A.S / 60
EN
Troubleshooting
SYMPTOM CAUSE SOLUTION
Motor piston
DOSATRON does
not start or stops
Piston stalled. Reset piston, by hand.
Air has not been
bled from unit.
Bleed air from unit, by
bleed button.
Maximum flow
exceeded.
1. Reduce flow, restart unit.
2. Unscrew the top cap.
Take off the piston
and check piston
valves seals to ensure
correct position.
Motor piston is
damaged.
Return unit to your
service center for repair.
Injection
Water flowing back
into concentrate
container.
Contaminated, worn,
or missing check
valve parts.
Check and clean
the components or
return the unit to your
distributor.
No suction of
concentrate.
The piston motor
has stopped.
See Motor piston section.
Air leak (inlet) in the
suction tube.
Check the tightness bet-
ween nut and suction hose.
Blocked suction tube
or clogged strainer.
Clean the components
or return the unit to your
distributor.
Missing or worn
suction check valve
seal.
Clean the component or
return the unit to your
distributor.
Missing or worn
plunger seal.
Clean the component or
return the unit to your
distributor
Worn injection stem Return the unit to your
distributor