Stern 07224003 Prox Sensor for Electronic Faucet 01900138-6
The Stern 07224003 is a prox sensor for Stern electronic tap installations and is also listed with code 01900138-6. This sensor is used on Stern touch-free, wall-mounted tap systems, where water delivery is activated electronically rather than by a manual tap handle.
The sensor detects the user at the tap and sends the activation signal to the electronic control and solenoid system. Replacing a failed or unreliable prox sensor can help restore correct touch-free operation where the tap does not trigger consistently, does not respond when a hand is placed near the sensor eye, or has intermittent electronic activation.
Technical Details
- - Part Number: 07224003
- - Additional listed code: 01900138-6
- - Part type: prox sensor for tap
- - Application: Stern electronic, wall-mounted tap systems for cold or premixed water
- - Sensor system: proximity or wave activation for touch-free water delivery
- - The relevant Stern tap system documentation gives a preset sensor range of 50 mm, with adjustment available where the installation supports it
- - The relevant Stern tap system documentation gives an 8 second flow time, with adjustment available by remote control where the installation supports it
- - The relevant Stern tap system documentation gives water pressure as 0.5 bar to 8.0 bar, and states that a pressure reducing valve should be used where pressure is above 8.0 bar
- - Electric versions of the tap system use a 9V transformer, while battery versions use 6 x 1.5 V AA batteries
Confirmed Compatible Models
- - Stern Extreme WMB
- - Stern Extreme WME
- - Stern Extreme WMLB
- - Stern Extreme WMLE
Common Fault Checks
- - Symptom: no water flows when the tap is activated
- - Likely Cause: failed sensor signal, low batteries, disconnected electronic connector, solenoid fault, blocked filter, or diaphragm issue
- - Solution: check the power supply connector, sensor cable, solenoid connection, water supply, filter, and original part code before replacing the sensor
- - Symptom: water flow is intermittent or unreliable
- - Likely Cause: sensor range setting, contamination on the sensor eye, unstable power supply, or a fault elsewhere in the electronic valve assembly
- - Solution: clean the sensor eye, check the power source, and confirm the original sensor code before ordering
Before Ordering Check
Match the original sensor and tap documentation to Part Number 07224003 and the listed code 01900138-6 before purchase. Do not order from appearance alone, because Stern electronic taps can use different sensor, solenoid, and power supply parts depending on the model and configuration.
Related Spares You May Need
- - STERN 075000 / 07500025-UK Interoperable Solenoid Valve (07230017)
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