English (GB)
11
8. Fault finding
CAUTION
Impurities in water
Minor or moderate
personal injury
- Before the pump is
used for supplying
drinking water, flush
the pump thoroughly
with clean water.
CAUTION
Sharp element
Minor or moderate
personal injury
- Wear protective
gloves.
WARNING
Electric shock
Death or serious
personal injury
- Switch off the power
supply before you start
any work on the
product.
- Make sure that the
power supply cannot
be switched on
accidentally.
Fault Cause Remedy
1. The green "Power
on" indicator light is
off.
a) The fuses in the electrical
installation have blown.
Replace the fuses. If the new fuses
also blow, check the electrical
installation.
b) The earth leakage circuit breaker or
the voltage-operated circuit breaker
has tripped.
Cut in the circuit breaker.
c) No power supply. Contact the power supply company.
d) The PM unit is defective. Repair or replace the PM unit.
2. The green "Pump
on" indicator light is
on, but the pump
does not start.
a) The power supply to the pump is
disconnected after the PM unit.
Check the plug and cable connections,
and check if the built-in circuit breaker
of the pump is switched off.
b) The motor protection of the pump
has tripped due to overload.
Check if the motor/pump is blocked.
c) The pump is defective. Repair or replace the pump.
d) The PM unit is defective. Repair or replace the PM unit.
3. The pump does not
start when water is
consumed.
The "Pump on"
indicator light is off.
a) Too big difference in height between
the PM unit and the tapping point.
Adjust the installation, or select a PM
unit with a higher start pressure.
b) The PM unit is defective.
Repair or replace the PM unit.
4. Frequent
starts/stops.
a) Leakage in the pipes. Check and repair the pipes.
b) Leaky non-return valve. Clean or replace the non-return valve.
c) A valve close to the PM 1 outlet has
been closed.
Open the valve.
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