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To Know How - GROHE

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Fault-Cause-Remedy<br />

Urinal - Electronic 37 749<br />

Problem Cause Remedy<br />

No flushing • Water supply interrupted • Open isolating valve in wall connection box<br />

• Filter upstream of solenoid valve blocked • Clean or replace filter, see Cleaning or replacing filter<br />

• Plug-in connectors without contact<br />

• Attach plug-in connector<br />

• The detection zone of the sensor system is<br />

set too low/too high<br />

• Increase/reduce detection zone using remote<br />

control (special accessories 36 206)<br />

• Solenoid valve defective<br />

• Replace, see Solenoid valve maintenance<br />

• Transformer defective<br />

• Replace, see Transformer maintenance<br />

Water flowing<br />

continuously<br />

• Electronics defective (indicator lamp not<br />

flashing or permanently on)<br />

• Solenoid valve defective<br />

Undesired flushing • Detection range of sensor system set too<br />

high for local conditions<br />

Flow volume too<br />

low<br />

Flow volume too<br />

high<br />

Setting mode<br />

• Flow volume set too low<br />

• Filter in solenoid valve blocked<br />

• Solenoid valve defective<br />

• Flow volume set too high<br />

• Solenoid valve defective<br />

• Replace, see Wall plate with electronics<br />

maintenance<br />

• Replace, see Solenoid valve maintenance<br />

• An opposing object is detected. Reduce<br />

detection zone using remote control (special<br />

accessories 36 206).<br />

• Adjust flow volume, see Setting flow volume<br />

• Clean or replace filter, see Cleaning or replacing filter<br />

• Replace, see Solenoid valve maintenance<br />

• Adjust flow volume, see Setting flow volume<br />

• Replace, see Solenoid valve maintenance<br />

The flow volume can be checked and changed in<br />

setting mode (see Setting the flow volume).<br />

The detection zone of the fitting can be checked. The indicator lamp in the sensor system of the fitting illuminates in<br />

setting mode when the detection zone of the fitting is reached by an approaching user.<br />

It is possible to set the detection zone via the optional remote control. Flushing is immediately triggered when the<br />

detection zone is<br />

exited again. The minimum delay time is not available in setting mode. <strong>To</strong> activate setting mode, proceed as follows:<br />

Disconnect the power supply to the electronics and reconnect after 5 s, see Fig.. Setting mode is activated. Setting<br />

mode is automatically terminated after 3 min.<br />

Sanitary Systems

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