dosatron D8R - Dosing

60 DOSATRON
SYMPTOM CAUSE SOLUTION
Dosing
Water flowing back
into concentrate
container
Contaminated, worn,
or missing check
valve parts or valve
seal.
Clean or replace it.
No suction of
concentrate
The motor piston has
stopped.
See Motor piston section.
Air leak (inlet) in the
suction tube.
Check the tightness between
nut and suction hose.
Blocked suction tube
or clogged strainer.
Replace it.
Missing or worn
check valve seal.
Clean or replace it.
Missing or worn
plunger seal.
Clean or replace it.
A scratch on the
doser body.
Replace it.
Under injection
Suction of air. 1. Check the tightness
between nut and suction
hose.
2. Check suction tube.
Dirty or worn check
valve seal.
Clean or replace check valve
seal.
Maximum flow
exceeded
(cavitation).
Reduce the flow.
Worn plunger seal. Replace it.
Worn doser body. Replace it.