WITA ADELINO AP-Serie Installation Und Betriebsanleitung Seite 39

Fault
The electric pump The pressure of the water inlet and outlet pipeline
does not start when is higher than the starting pressure of the
water is used pressure switch
1. The pressure fluctuation range of the pipeline
networks of the tap water is overlarge
2. The water discharge of the faucet is obviously
less than the water inflow
3. There is slight leakage phenomenon at the
The electric pump
mechanical seal, check valve or pipeline of the
is started frequently
electric pump
when water is used
4. The start/stop pressure range of the pressure
switch is not consistent with the actual working
conditions
5. The pressure tank leaks air and the air
pressure is insufficient, so it has no buffer function
Common faults of APS-B automatic self-priming pumps and elimination methods
Fault
1. The water discharge of the faucet is little
2. Fault of the flow switch (Check method:
unplug the plug of the flow switch on the
The electric pump is controller and make the socket of the flow switch
started frequently when on the controller contact short circuit, if the fault
water is used is improved, then it is the fault of the flow switch)
3. The pressure tank leaks air and the air
pressure is insufficient, so it has no buffer
function
1. The setting of the pressure switch is too
low or the fault of the pressure switch (Check
method: Unplug the plug of the pressure switch
on the controller and make the socket of the
pressure switch on the controller contact short
circuit, if the electric pump can be started, then
The electric pump does not
the setting of the pressure switch is too low or it
start when water is used
is the fault of the pressure switch)
2. Fault of the controller (Check method: Unplug
the plug of the flow switch on the controller
and make the socket of the flow switch on the
controller contact short circuit, but the electric
pump still cannot be started)
1. The check valve is stuck by the debris and
cannot be reset or the fault of the flow switch
(Check method: Unplug the plug of the flow
switch on the controller and the electric pump is
The electric pump cannot
halted)
be halted when water is
not used
2. The setting of the pressure switch is too
high or the fault of the pressure switch (Check
method: Unplug the plug of the pressure switch
on the controller and the electric pump is halted)
Cause
Ask the profession personnel to properly adjust the switch
pressure value, first cut off the power, remove the pressure switch
cover and use the screwdriver or wrench to slowly turn it in the "+"
direction to an appropriate position
1. When the pressure of the pipeline networks of the tap water
is not stable, please adjust the start/stop pressure range of the
pressure switch to the maximum limit according to the actual
condition during the water consumption peak period
2. Adjust the valve on the water inlet pipeline of the electric
pump to make the water inlet and outlet flow of the electric pump
basically balanced
3. Find out the leakage point and treat it until it is completely
sealed
4. Ask the professional personnel to or under the guidance of the
professional personnel, adjust the start/stop pressure range of the
pressure switch to meet the actual working conditions; or select a
19L or bigger pressure tank
5. Refill the pressure tank with air as per the pressure
Cause
Remedy
Remedy
1. Properly turn up the faucet
2. Replace the flow switch with a new one
3. Refill the pressure tank with air as per the pressure value
on the tag of the pressure tank
1. Ask the professional personnel to properly turn up the
pressure of the pressure switch, if the electric pump still
cannot work normally, then replace the pressure switch with
a new one
2. Replace the controller with a new one
1. Clear the debris of the check valve or replace the flow
switch with a new one
2. Ask the professional personnel to properly turn down
the starting pressure of the pressure switch or replace the
pressure switch with a new one
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