Troubleshooting
of PW-Z
、
AWZB
-
H1 Series Electric Pump
Switches Wiring
Fault
Cause
Remedy
The electric pump
is started
frequently when
water is used
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 controller and make the
socket of the flow switch on the controller contact short
circuit, if the fault 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. 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
The electric pump
does not start
when water is used
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 setting of the pressure switch is too low or it 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. 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
20
Pressure Switch
Plug(2-wire)
Flow Switch
Plug(3-wire)
Pressure Switch
Flow Switch
The electric pump
cannot be halted
when water is not
used
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 halted)
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)
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
Note:
1.The figures in the Manual are all schematic figures, and please understand that the electric pump and the
parts you buy may be inconsistent with the figures in the Manual.
2.The performance of the product is improving constantly and all the products (including the appearances and
colors and so on) should be pursuant to the material object; the product will be subject to change without
further notice.
