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KWC ONO touch light PRO 12.651.031.000 Instrucciones De Montaje Y Servicio página 26

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26
Possible cause
The device is not working
- Control unit is not connected to the power supply
- Power supply has failed
- Plug adapter is not connected to microprocessor control system
- Operating unit is not connected
The water temperature is not as selected
- Hot and cold water inlet pipes switched
- Hot or cold water angle valve is closed or only partially open
- *QV QT EQNF YCVGT RKRG KU DNQEMGF QT DGPV
- Boiler is empty or instantaneous water heater is not connected
- Temperature limits are set incorrectly
- Pressure difference between hot and cold water
inlet pipe is too great (max. 1 bar permitted)
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- Angle valves are closed
- No water supply
- $NQEMGF NVGT
- Control unit is not connected to the power supply
- Power supply has failed
- Plug adapter is not connected to microprocessor control system
- Operating unit is not connected
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- Hot or cold water angle valve is closed or only partially open
- *QV QT EQNF YCVGT RKRG KU DNQEMGF QT DGPV
- 5CXGF YCVGT NGXGN KPUWH EKGPV
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- 9CVGT KU QYKPI EQPUVCPVN[
Water switches off automatically after a certain time
- Maximum on-time reached
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The saved water level is incorrect
- The saved water level is incorrect
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- Cleaning mode is activated
Control unit is damp or wet inside
- Installed in incorrect location
- Pipes to the valves are not properly sealed
- Possible condensation on the valve housings
Operating unit (wired) is not responding
- Operating unit is connected incorrectly
- The operating unit is faulty
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Remedy
- connect control unit to power supply
- check fuses in fuse box
- connect 2-pin plug to microprocessor control system
(15V connection)
- connect cable on operating unit to microprocessor
control system (TLI connection)
- swap connections
- fully open both angle valves
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- Call a service engineer
- apply the 'Factory settings' option
(see operating instructions)
- fully open both angle valves
- (e.g. no water pressure, main stopcock turned off)
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- connect control unit to power supply
- check fuses in fuse box
- connect 2-pin plug to microprocessor control system
(15V connection)
- connect cable on operating unit to microprocessor
control system (TLI connection)
- fully open both angle valves
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(see operating instructions)
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- see operating instructions
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(see operating instructions)
- Call a service engineer
- wait for 45 seconds or press the operating unit for 5
seconds
- see label on the cover
- Call a service engineer
- no action needed
- must be plugged in to TLI connection
- Call a service engineer

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