18
Fault/defect
Short acoustic signal when
the cover is closed
(mains device plugged in),
but no double beep after
5 - 8 seconds
Regularly recurring
acoustic signals
Long acoustic signal before
Long acoustic signal instead of
Recurring short
acoustic signal (every 2 seconds)
Incorrect water temperature
No water
Too little water
No acoustic signal when
the cover is closed
(mains device plugged in)
Possible cause
• Sensor cable not connected
(to electronics or to brass mandrel)
• Water has entered the sensor plug
• Sensor in contact with metallic parts
• Electronic unit faulty
• Weak batteries
• Individual battery not inserted correctly
• Weak batteries
• Flat batteries
• Cleaning mode is activated
• Shut-off valves/dirt trap blocked
• Water supply faulty
• Hoses twisted/bent
• Hot water temperature set too hot
• Hot water temperature set too cold
• Hoses twisted/bent
• Pressure difference between hot and
cold water too great.
• No water supply
• Shut-off valves/dirt trap blocked
• Hoses twisted/bent
• Limescale on solenoid valves
• Sensor cable not connected or faulty
• Sensor in contact with metal parts
• Fault in electronic unit
• Power supply
(mains plug or batteries) faulty
• Incoming pressure too low
• Hoses twisted/bent
• Shut-off valves/dirt trap blocked
• Limescale on solenoid valves
• Solenoid valve does not close
• Solenoid valve faulty
• Contacts corroded
• Cables not correctly connected
• Mains cable (mains device)
• No power supply
• Housing cover is only secured with
one screw
• Mains adapter or electronic unit faulty
• No protective cover on system plug
E
• Connect the sensor cable
• Dry the sensor plug
• Connect the sensor correctly
• Replace electronic unit
• Replace batteries
• Insert batteries correctly
• Replace batteries
• Replace batteries
• Wait 45 seconds or touch
sensor for 5 seconds
• Clean valves and dirt traps
• Check water supply
• Connect hoses correctly
• Turn socket head screw on valve block
clockwise
• Turn socket head screw on valve block
anti-clockwise
• Connect hoses correctly
• Check water supply
• Check main stop cocks
• Clean shut-off valves/dirt trap
• Connect hoses correctly
• Replace electronic unit
• Check sensor cable
• Connect sensor correctly
• Replace electronic unit
• Check power supply
• Check supply
• Connect hoses correctly
• Clean shut-off valves/dirt trap
• Replace electronic unit
• Replace electronic unit
• Replace electronic unit
• Clean contacts
• Check plugs
• Plug in correctly
• Check power supply
• Fit housing cover correctly
• Replace mains adapter or entire electronic unit
• Check for entering water
Fault - Causa - Remedy
Remedy