Troubleshooting - Seko TEKNA EVO 1 OR 6 I/day Manual De Instalación

Trouble Shooting
Problem
The pump is working properly but
the dosage is interrupted
Insufficient flow capacity
Excessive or irregular pump flow
capacity
Broken diaphragm
The pump does not come on
EM00136168
Fixing templates
Possible Cause
Valve blockage
Excessive suction height
Excessively viscous
liquid
Valve leakage
Excessively viscous
liquid
Partial valve blockage
Siphon effect on delivery
Transparent PVC pipe
on delivery
Pump not calibrated
correctly
Excessive back-
pressure
Operation without liquid
Membrane not secured
correctly
Insufficient power supply
rev. 1.1
Solution
Clean the valves or replace them if it is not
possible to remove the build-ups
Position the pump or tank so as to reduce the
suction height (pump under water head)
Reduce the suction height or use a pump with
a bigger flow capacity
Check that the ring nuts are properly tightened
Use a pump with a bigger flow capacity or
reduce the suction height (pump under water
head)
Clean the valves or replace them if it is not
possible to remove the build-ups
Check the injection valve installation. Insert a
back-pressure valve if insufficient.
Use an opaque PE pipe on delivery
Check the pump flow capacity relative to the
system pressure.
Check the system pressure. Check whether
the injection valve is blocked. Check whether
there are any blockages between the delivery
valves and the injection point.
Check the presence of the foot filter (valve).
Use a level probe that stops the pump when
the chemical product in the tank has run out.
If the membrane has been replaced, make
sure that the same is correctly tightened.
Check whether the
corresponds to that of the electricity network.
pump plate data
3