SYMPTOM
CAUSE
SOLUTION
Injection
Under injection
Suction of air
1. Check the tightness of
the nuts in the injection
area
2. Check suction tube
Dirty or worn check
Clean or replace it.
valve seal.
Maximum flow
Reduce flow
exceeded (cavitation)
Worn plunger seal
Replace it
Worn injection stem
Replace it
Leaks
Leaks in the vicinity Injector sleeve seal
Replace it
of the fixing ring
is damaged or
under the body
positioned incorrectly
housing
Leaks between the
Injector stem
Replace it
setting sleeve and
seal damaged,
the blocking ring
positioned incorrectly
or missing
Leaks between the
Pump body seal is
Unscrew the bell,
body and bell
damaged, positioned
clean the seal seating,
incorrectly or missing
replace or change the seal.
Position correctly
the bell.
THE MANUFACTURER
DECLINES ALL RESPONSIBILITY IF THE DOSATRON
IS USED IN CONDITIONS THAT DO NOT CORRESPOND
TO THE OPERATING INSTRUCTIONS AS INDICATED
IN THIS MANUAL
Troubleshooting
SYMPTOM
CAUSE
SOLUTION
Motor piston
Piston stalled
Reset piston, by hand
Air has not been
Bleed air from unit,
bled from unit
by bleed button
Maximum flow
1. Reduce flow,
exceeded.
restart unit
2. Unscrew the bell.
Take off the piston and
check piston valves
seals to ensure correct
position
Motor piston
Return unit to your
is damaged
service center for repair
Filter clogged
Clean the filter :
§ cleaning the water filter
Injection
Water flowing back
Contaminated, worn,
Clean or replace it
into concentrate
or missing check
container
valve parts
No suction of
The piston motor
See
Motor piston
section
concentrate
has stopped
Air leak (inlet) in the
Check the tightness bet-
suction tube
ween nut and suction hose
Blocked suction
Clean or replace it
tube or clogged
strainer
Missing or worn
Clean or replace it
suction check valve seal
Missing or worn
Clean or replace it
plunger seal
Worn injection stem
Replace it
©
DOSATRON INTERNATIONAL /
53
EN
©
DOSATRON INTERNATIONAL /
52
DOSATRON does
not start or stops
