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eletronicVED pro series 

9

Troubleshooting  7

Troubleshooting

miniVED plus series

miniVED pro series

Fault phenomenon

Possible reasons

 

Troubleshooting measures

The water is too cold

1.  Excessive water flow or low 

temperature of tap water.

2.  When the water flow is too low, 

the water heater does not start.

3.  Voltage is instable or lower 

than the required voltage of the 

product.

1.  Adjust the water mixing tap to reduce the water flow.
2.  Check whether the water pressure is adequate, if additional 

pressure is needed, close the other water sources or increase the 

pressure of the booster pump to increase the water pressure.

3.  Contact a professional to check the power supply voltage.

Power supply indicator is off

1.  The water heater is not open.

2.  There is a problem with the 

supply of power.

3.  The water heater is not started.

4.  The internal parts are not 

working or damaged.

1.  Press  ower button to start.

2.  Check the power switch and the circuit.

3.  Check whether the water pressure is adequate, if additional 

pressure is needed, close the other water sources or add a booster 

pump to increase the water pressure.

4.  Checked by the professional.

Water temperature can’t 

reach required high 

temperature

Inlet water temperature is too 

low, the water flow is too large.

Adjust water mixing tap to lower water flow.

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

1.  Medium detection short circuit 

or open circuit.

2.  Water resistance too high.

Contact a professional to check appliance and installation.

Table 7.1 mini VED plus troubleshooting

Fault phenomenon

Possible reasons

 

Troubleshooting measures

The water is too cold

1.  The water flow is too large 

or the external tap water 

temperature is too low.

2.  When the water flow is too low, 

the water heater does not start.

3.  Voltage is instable or lower 

than the required voltage of the 

product.

1.  Adjust water mixing tap to reduce water flow.
2.  Check whether the water pressure is adequate, if additional 

pressure is needed, close the other water sources or add a booster 

pump to increase the water pressure.

3.  Contact a professional to check the power supply voltage.

The water temperature 

cannot reach the required  

temperature

The inlet water temperature is too 

low.

The water flow is too large.

Adjust the water tap to reduce the water flow.

Table 7.2 miniVED pro troubleshooting

Caution�

If the user cannot complete troubleshooting, 

please contact a professional.

Danger! 
Electric shock hazard!

Before checking the internal fault of the electric 

water heater, remember to disconnect the power 

supply.

Summary of Contents for EIWH mini VED plus

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Page 2: ...ructions 5 2 3 Appliance type 5 3 Product description 5 3 1 Main components 5 3 2 Product features 5 4 Installation 6 4 1 Packing list 6 4 2 Installation method 6 4 3 Technical parameters 7 4 4 Special points related to installation 8 5 Water heater use 8 5 1 Usage of water heater 8 6 Water heater maintenance 8 7 Troubleshooting 9 8 Recycling and disposal 10 9 Guarantee and customer service 10 9 1...

Page 3: ... Only persons from professional company who are sufficiently qualified are allowed to conduct installation commissioning maintenance and repairing of Vaillant EIWH mini VED plus pro It is only allowed to install Vaillant EIWHmini VED plus pro according to the instructions When the appliance is frozen or suspected to be frozen don t switch on the appliance until it is thawed Please check if the ele...

Page 4: ...miniVED plus pro is only used to heat domestic water The domestic water shall comply with national domestic water quality requirement otherwise the appliance may rust If you have any doubts about the water quality please consult the professional Risk of freezing If EIWH mini VED plus pro is kept in non heated area for a long time the water inside the appliance and pipe may freeze in winter Ensure ...

Page 5: ...ation work is finished 3 Product description 3 1 Main components 3 1 1 miniVED plus series VED E 6 1 P IN Fig 3 1 miniVED plus series main components Remark 3 1 2 miniVED pro series VED E 6 1 B IN Fig 3 2 mini VED pro series main components Reamrk 3 2 Product features 3 2 1 miniVED plus series Temperature control built in constant temperature mode default temperature is 38 The water heater include...

Page 6: ...sition of water heater Confirm water heater installation position according to water connection and electrical connections The installation position of the water heater is not more than 50mm from the power cord connection and not more than 50mm from the cold water outlet Use the hanging bracket fixing it to the wall with screws or directly fix the water heater to the wall with screws Fig 4 1 Water...

Page 7: ... controller 2 Heating body 3 Control panel 4 Display board 3 T cock 4 Cold water nozzle 5 Temperature sensor 6 Flow sensor 7 Water resistence detection 1 Temperature controller 2 Heating body 3 Control panel 4 Temperature sensor 5 Flow sensor 6 Water resisitence detection QOHW 2XWOHW Product type VED E 6 1 P IN VED E 6 1 B IN Rated voltage V Rated frequency Hz 220 50 220 50 Rated power kW 5 5 5 5 ...

Page 8: ... there is no water leakage at each joints can the water heater be turned on Starting up Close the air break switch only for the first time use after installation adjust the water mixing tap to the appropriate flow miniVED plus series Press the ON OFF button the display is bright and enter the instant heating mode The display shows the current setting temperature miniVED pro series Turn on the wate...

Page 9: ...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 1 Medium detection short circuit or open circuit 2 Water resistance too high...

Page 10: ...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 pro...

Page 11: ......

Page 12: ...ce Building Bhandarkar Road Lane 11 Deccan Pune 411 004 TEL 91 9619506391 cs aquagreensolutions in These instructions or parts thereof are protected by copyright and may be reproduced or distributed only with the manufacturer s written consent ...

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