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Installation Instruction
DisplayE4
Water level display
doesn't accord with
the actual value
Water can't be
supplied
Water level display
transforms frequently
Installation instruction
Installation notice
1.These products must be installed by professional staff
2.Controller must stay away from water.
3.Prohibit bending water temperature and water level sensor; otherwise the
sensor will be damaged.
4.In order to avoid harmful aftermath caused by long-term overflowing due to the
failure of the sensor and other causes. Water heater must be installed in the
place with good drainage.
5.About the system equipped with pump, in order to prevent booster
pump from being damaged due to running idling without water. When user is in
the allocation, the pump with limitable temperature should be chosen.
6.Power must
ground
Electric heater water temperature and level sensor installation
1.Check whether appearance of controller, electric heater and water
temperature and level sensor are intact, whether attachments are complete.
2.Unload the electric heating pipe at the bottom of water tank, unscrew the
bolts at the bottom of electric heater, remove the jacket of electric heater, wire
Water level sensor is in
short circuit
1.The surface of sensor is
dirty.
2.The sensor disabled.
1.The local hydraulic
pressure is low.
2.The electromagnetic
valve filter is blocked up.
3.The electromagnetic
valve disabled.
Water level is in the state
of threshold
reliably.
9
Check whether water level
and circuit wiring are
connected directly.
1.Unload the sensor and
clean, then install it back
2.Replace the sensor
1.Install pump
2.Clean the electromagnetic
valve filter.
3.Replace electromagnetic
valve
Supply or releasesome water
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