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    Resideo L1 Wi-Fi Water Leak and Freeze Detector — Installation Guide

    August 31, 2026 3 min read

    Complete installation guide for the Resideo L1 Wi-Fi Water Leak and Freeze Detector — setup, placement, LED status reference, troubleshooting, and specs.

    💾 Download Original PDF 🛒 View Product
    Full text manual (for reference)

    Installation guide for the Resideo L1 Wi-Fi Water Leak and Freeze Detector (RWLD3001-001 / CHW3610W8001 / YCHW3000W3003) — a battery-powered, app-connected sensor that detects water leaks and freezing temperatures and alerts your phone via the Resideo app.

    What's in the Box

    • L1 Wi-Fi Water Leak and Freeze Detector
    • Cable Sensor (extends detection area)
    • 2 x AA Alkaline Batteries

    Tools needed: your home Wi-Fi password and a Phillips #2 screwdriver. You may also need the optional accessory cable sensor (WLD3CABLE, sold separately) to extend range.

    Setup

    1. Download the Resideo app to your mobile device and create an account (or sign in if you already have one).
    2. In the app, tap Add and select "L1 WiFi Water Leak and Freeze Detector" from the device list.
    3. Open the battery cover on the detector and install the 2 AA batteries. Wait a few seconds until the white LED shows solid, then press and hold the button for at least 5 seconds until the blue LED begins blinking (Bluetooth pairing mode).
    4. Follow the in-app instructions to complete Wi-Fi/Bluetooth setup.

    Note: The device can be used for water sensing and the local siren even without app pairing.

    Placement and Sensing

    • Do not submerge the leak detector in water.
    • Wall mounting: the device can be mounted on a wall using the mounting keyhole, in combination with the optional cable sensor.
    • Floor placement: the device can sit directly on the floor and detect leaks via the on-device water-sensing contacts, plus the optional cable sensor.
    • Optional cable sensor: remove the plug at the bottom of the device and plug in the cable sensor. Accessory cable sensors (WLD3CABLE, sold separately) can be daisy-chained to extend detection up to 500 ft — the entire length of cable acts as a water sensor.
    • Important: the cable sensor jack is NOT for plugging in a power adaptor — doing so could damage the detector.

    When a Leak Is Detected

    • To silence alerts: press the leak detector's button, or tap the mute button in the app to mute the siren.
    • After addressing the cause of the alert, remove the detector and cable sensor from the water and wipe them dry. Replace the batteries if they were removed.

    Troubleshooting

    • Device not powering on: ensure batteries have sufficient charge and are inserted in the correct orientation. If fully depleted, replace with 2 new AA batteries.
    • Bluetooth pairing failed: if pairing fails at any stage, perform a factory reset.
    • Factory reset: press and hold the button for 15 seconds until the LED shows solid red and you hear two beeps (reset in progress). Once the LED turns off, the reset is complete.

    Lighting / Status Reference

    LED Color Behavior Device Status
    White Solid Awake and ready for BLE pairing — follow in-app instructions to connect
    White Blinking Firmware updating
    Blue Blinking Bluetooth pairing mode
    Blue Solid Paired with Bluetooth
    Green 2 blinks Connection success
    Green Solid Awake and connected
    Red 3 blinks Connection failure
    Red Blinking Leak detected
    Red Solid Factory resetting
    Yellow Blinking Low battery
    Off Off Idle, not connected, or no power

    Specifications

    Spec Value
    Part numbers RWLD3001-001, CHW3610W8001, YCHW3000W3003
    Power input 2x AA batteries
    Weatherproofing IP44
    Operating temperature 32°F to 131°F (0°C to 55°C)
    Operating humidity 5–95% non-condensing
    Shipping temperature -22°F to 158°F (-30°C to 70°C)
    Buzzer alarm 100 dBA
    Physical dimensions 3.9 x 2 x 1.1 in (99.4 x 52.4 x 28.6 mm)
    Color Grey/White
    Wi-Fi frequency 2412–2472 MHz, max EIRP 20 dBm
    Bluetooth frequency 2402–2480 MHz, max EIRP 10 dBm

    Regulatory

    Complies with FCC Part 15 and Industry Canada RSS-GEN license-exempt rules. Changes or modifications not expressly approved by Resideo could void the user's authority to operate the equipment. This equipment should be installed and operated with a minimum distance of 20 cm between the radiator and a human body.

    Manufactured by Resideo Technologies, Inc., 1985 Douglas Drive North, Golden Valley, MN 55422 · 1-800-468-1502 · resideo.com