©
DOSATRON INTERNATIONAL /
62
EN
© DOSATRON INTERNATIONAL /
61
SYMPTOM
CAUSE
SOLUTION
Injection
Water flowing back
into concentrate
container.
Contamined, worn, or
missing check valve
parts.
Clean or replace it.
Check it has been
properly reassembled.
No suction of
concentrate.
The motor has stopped.
See
motor section
.
Air leak (inlet) in the
suction tube.
Check the tightness
between nut and
suction hose.
Blocked suction tube or
clogged strainer.
Clean or replace
them.
Missing or worn suction
check valve o-ring.
Clean or replace it.
Missing or worn plunger
seal.
Clean or replace it.
Worn injection stem.
Replace it.
Under dosing.
Suction of air.
1. Check the tightness
of the nuts in the
injection area.
2. Check suction tube.
Dirty or worn check
valve seal.
Clean or replace it.
Maximum flow exceeded
(cavitation).
Reduce flow.
Worn plunger seal.
Replace it.
Worn injection stem.
Replace it.
Overdosing.
Siphoning.
Check your
installation.
Amend it and install
the necessary anti-
siphoning devices.
SYMPTOM
CAUSE
SOLUTION
Leaks
From the top cap,
actuator assembly or
transfer parts.
Screws untightened.
Rescrew the screws.
It is not recommended
to open the top cap.
Dirty, not fitting or
missing seals.
Clean or replace the
seals.
From the by-pass.
Dirty, worn or missing
seals.
Clean or replace the
seals.
From the injection
part.
Dirty, worn or missing
seals.
Clean or replace the
seals.
THE MANUFACTURER DECLINES ALL RESPONSIBILITY IF THE DOSATRON
IS USED IN CONDITIONS THAT DO NOT CORRESPOND TO THE OPERATING
INSTRUCTIONS.
