10
eletronicVED pro series
7 Troubleshooting
7
Troubleshooting
Cut off the power before checking the internal faults of water heater
If the users fail to complete troubleshooting, please contact maintenance personnel timely.
Table 7.1 Common fault analysis and troubleshooting
8
Recycling and disposal
▶
The competent person who installed your product is re-sponsible for the disposal of the packaging.
If the product is identified with this symbol:
▶
In this case, do not dispose of the product with the household waste.
▶
Instead, hand in the product to a collection centre for old electrical or electronic appliances.
If the product contains batteries that are marked with this symbol, these batteries may contain substances that are
hazardous to human health and the environment.
▶
In this case, dispose of the batteries at a collection point for batteries.
9
Guarantee and customer service
9�1
Guarantee
For information on the manufacturer's guarantee, you can write to the contact address that is provided on the back page.
9�2
Customer service
For information on the manufacturer's guarantee, you can write to the contact address that is provided on the back page.
Fault phenomenon
Possible reasons
Troubleshooting measures
The water is too hot
Water flow through the water
heater is small; tap water
temperature rises; select to heat
tap water .
Increase the inlet water volume; lower heating power to the suitable
water temperature.
The water is too cold
Excessive water flow or low
temperature of tap water.
Decrease the inlet water volume or Increase the powe.
When the water flow is too low,
the water heater does not start.
If the water volume is inadequate, close the other water sources or add
booster pump.
Voltage is instable or lower than
the required product voltage.
Check the voltage by the professionals.
The screen display is dark
The water heater is off.
Press on/off button to turn on the appliance.
Power supply problem.
Check power switch and circuit.
The water heater not start when
the water flow is too low.
Check whether the water volume is adequate, if additional water
pressure is needed, close the other water sources or add a booster
pump to increase the water pressure.
Internal components do not work
or are damaged.
Check by the professionals.
Water flows；Power off
Air-break switch trips or circuit not
connected.
Check air-break switch.
No water at tapping point
No water supply.
Tap clogged.
Water heater is clogged.
Check water supply.
Clean shower head water outlet holes.
Contact a professional.
E1
Outlet water temperature sensors
short circuit or open circuit.
Check outlet water temperature sensor by a professional.
E2
Inlet water temperature sensor
short circuit or open circuit.
Check the inlet water temperature sensor by a professional.
E5
Overheating sensor short circuit
or open circuit.
Check by a professional.
E7
Medium detection short circuit or
open circuit.
Water resistance too high.
Contact a professional to check appliance and installation.
Summary of Contents for EIWH electronicVED E 9/1-B IN
Page 11: ......
