4. Troubleshooting
Before taking any troubleshooting action, disconnect the pump from
the power supply. If there is any damage to the power cable or
pump, any necessary repairs or replacements must be performed by
the manufacturer or his authorized customer support service, or by
an equally -qualified party, in order to prevent all risks. When the
solutions doesn't solve the problem, please contact your dealer.
Fault
The pump
cannot start
No water
The pump
cannot close
Too small
flow rate
Close the
pump after a
short period
of time
kinpumps.com
Possible Causes
1. Unconnected power.
2. Sensors are not exposed to water.
3. Sensor metal contact is blocked by
dirt.
1. Inlet obstruction.
2. The pressure hose is bent.
1. The sensor is conducted by
conductive dirt.
1. Inlet obstruction.
2. Debris and particles cause the wear
of a critical part of the pump which
reduces the flow of the pump.
1. If the water is too dirty, the pump
may stall, and the heat protector
will cut off the water pump motor
power supply.
2. If the water temperature is too high,
the heat protector will cut off the
water pump motor power supply.
HNB 400 Auto A
Possible Solutions
1. Check power supply.
2. Sensors are placed in
water.
3. Clean the sensor.
1. Clean the inlet
2. Adjusting hose.
1. Clean the sensor.
1. Clean the inlet.
2. Clean the pump and
replace worn parts.
1. Disconnect the main
power supply and
clean the water
pump.
2. Ensure that the
maximum water
temperature is not
exceeded 35 °C.
GB
8