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FAQ | NZP
Water supply is closed.
Jet controller is blocked / dirty.
Filter is blocked / dirty.
No pressure in the water system.
Plug-in cable connection between the power
supply unit and mains adapter is disconnected
(mains operated fittings).
Connection cable is bent or broken (mains
operated fittings).
No mains current available (mains operated
fittings).
Solenoid valve is defective.
Fitting is in cleaning mode.
Electronic module is defective.
Mains adapter is defective (mains operated
fittings).
Sensor detection distance is not set correctly.
Sensor window is scratched / dirty.
Disturbing reflections from the washbasin.
Water runs continuously and stops if an object appears in the detection range!
Connector between the electronic module and
solenoid valve is connected the wrong way round
(polarity reversal).
Set range of the sensor is too short.
16 | HEWI
Cause
Water doesn't flow!
Remedy
Open water supply.
Clean or replace jet controller.
Clean or replace filter.
Check water pressure, restore water pressure.
Plug in cable to connect.
Replace defective parts.
Check mains power supply, secure power supply.
Replace solenoid valve.
Wait for the end of cleaning mode (approx.
1 minute factory setting or set the duration using
the BT adapter).
Contact Hewi customer service or replace
electronic module.
Contact Hewi customer service or replace mains
adapter.
Set detection distance correctly.
Clean sensor window carefully, if necessary
replace control.
Set detection distance correctly (reduce range).
Connect plug-in connection correctly.
Increase range.
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