Installation tutorial video: 1. What does the E1 error code mean? E1 indicates failed stroke calibration. The test must be performed with the device installed on the valve; or press with your finger to simulate the pin, allowing the device to complete stroke calibration normally. 2. Display shows “LA” and is inoperable First install the device on the valve, then insert the battery. Wait one minute for the thermostat to perform automatic calibration. Once the screen displays the temperature, adjust it to “OF” and press and hold the button for 5 seconds. The WiFi icon will flash, indicating entry into network pairing mode. 'LA' indicates that the device is performing a self-test; it will be ready for use once the test is complete. You must wait for approximately one minute. Zigbee Smart TRV Need work with Tuya ZigBee gateway ZigBee Smart TRV Controllor Optimized structure to load powerful motor in a compact body. accurate, delicated and save space Installation Method 1.Install the battery; 2.Install on the valve 3.Connect to the gateway; 4.APP for pairing APP/Voice Control Smart life/Tuya app remote control from anywhere，anytime Work with Alexa and Google home Programmable Weekly Schedule& Time Period 7day programmable weekly schedule 6 time period /day can be setting on app Multiple Selection Modes Manual mode, Program mode, ECO mode，Comfort mode, Antifrost mode, Holiday mode History Query View switching times and temperature details forprevious time periods Child Lock Function Make sure your home in smart and safe status Anti-Freezing Function Under Off status，temperature<5°C-valve open, temperature>8C-valve close Bidirektionaler Bildschirm Adjust the temperature to 35'c, long press the knob.the display will switch Family Share Function You can share the TRV to your family with the limited right,create a smart home together with your family member Group-Control Function Realize group control TRV in different room in special scene Product Parameter Device Overview

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