







AWCHLOCK Contactless Toilet Indicator Sensor
Architrave contactless toilet indicator sensor AWCHLOCK. "No Touch" hardwired hand sensor with scratch resistant, antimicrobial acrylic label.
The sensor is normally used in conjunction with our disabled toilet door locking system. It is installed inside the toilet and used to lock and unlock/open the toilet door. The red & blue LEDs give assurance to the user that the door has locked successfully.
The switch is activated when a hand approaches and the range is adjustable from up to 60mm, making it very hygienic. If touched SteriTouch® offers protection against a range of bacteria, including the Flu Virus, E. coli, MRSA, Salmonella and Legionella, as well as black mould growth, biofilm and fungi. SteriTouch® works continuously and effectively to restrict this growth before it appears. It eradicates the bacteria which cause contamination and infection, as well as those responsible for odours and staining. The antimicrobial effect also protects the product against degradation, extending its use!


Additional information
Weight | 0.14 kg |
- Architrave internal touch sensor for disabled toilet system/toilet locking system
- User activates sensor to lock or unlock/open the door
- 12-28Vdc
- Entire label is sensitive
- Up to 60mm activation range
- Red & blue LED indicators to show engaged/vacant status
- Sounder on activation
- Reinforced nylon housing
- Scratch resistant antimicrobial acrylic label with Steritouch additive, kills 99.9% of germs!
- IP65 rated
✔ Solution:
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Link out the door switch terminals on the control board.
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If this works, inspect the mag lock reed switch/monitoring wiring and armature plate alignment.
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Ensure the mag lock provides a normally closed (NC) signal when the door is shut.
✔ Step-by-step checks (de-power system for 10 seconds after each step):
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Ensure the sensor is securely mounted on the wall, not dangling or handheld.
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Verify the jumper next to the touch sensor relay is in place and functioning.
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Use a multimeter to check voltage at the touch sensor (+V and 0V).
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Ensure 0V is connected to the correct terminal, not the REM terminal.
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Disconnect the sensor from existing cabling and test it with a short cable directly to the power supply to rule out cable issues.
✔ Solution:
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Ensure mag lock contacts are wired into the door switch terminals on the control board.
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Adjust the potentiometer on the internal touch sensor to switch for 3 – 5 seconds.
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Reduce the sensitivity of the internal touch sensor, especially if emergency lighting or hand dryers are nearby.
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Remove any excess cable inside the touch sensor back box.
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Re-terminate internal touch sensor connections.
✔ Solution:
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Remove the two wires from the C and NO door activation terminals on the control board and join them together.
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If the door still doesn’t open, the problem lies with the operator—contact the supplier/manufacturer.
✔ Solution:
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Check the position of the override keyswitch on the external sensor.
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Ensure the break glass hasn’t been pressed.
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Inspect the lock fuse.
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Link out the NC & KS/BG terminals on the control board.
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If the system works after linking, but your keyswitch and break glass are correctly positioned, there is likely a cable break.
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Use a multimeter to check for voltage at the mag lock.
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If voltage is present but the lock isn’t engaging, the lock is faulty.
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✔ Solution:
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Verify that the solid/flashing LED jumper on the control board is in place.
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If using square sensors, the LED wires should connect to the larger outer PCB (see page 10 of the manual).
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Use a multimeter to check voltage at the touch sensor LED terminals.
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The LEDs have a separate power supply from the sensor itself—if the sensor beeps but LEDs don’t light, check for a cable break.
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Remove the sensor from the wall and connect it directly to the control board using a short cable to rule out wiring issues.
✔ Solution:
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Change the jumper position on the control board.
✔ Solution:
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Adjust the potentiometer on the internal touch sensor to switch for 3 – 5 seconds.
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This may occur if the mag lock contact is intermittently opening and closing while the touch sensor is still beeping.
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Check armature alignment and ensure the door does not judder when opening.
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If the issue persists, replace the mag lock or install a standard magnetic door contact instead.
✔ Yes!
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Multiple Door Assist or Touch to Lock/Open sensors can be wired in parallel for seamless operation.