Frequently asked questions about KE100 KIT
A1: You may install the Kasa Smart Thermostatic Radiator Valve by following the steps listed in the following instruction.
How to Install Kasa Smart Thermostatic Radiator Valve
A2: No, KE100 needs to work with the KH100 hub so that you can manage/control it via KASA APP.
A3: Yes. However, the KE100 currently only supports working with Tapo T110 (additional purchase required).
With the Open Window Detection feature, it will send you notifications, automatically turn off the heating, and activate Frost Protection when an open window/door is detected. Once the window/door is closed, it will resume heating automatically.
Please note that for the Open Window Detection feature to work, the sensor must be online and bound to the same hub KH100 as the KE100 in KASA APP.
A4: KE100 connects to front-end Hub KH100 through a Sub-G wireless signal. KH100 can only connect to the router through 2.4GHz WLAN.
A5: 1× RA adapter 1× RAV adapter 1× RAVL adapter
KE100 fits on most radiator valve body thread (M30x1.5) and the three adapters(RA, RAV & RAVL) included allow more compatibility.
A6: Kasa Smart Thermostatic Radiator Valve is only compatible with the thermostatic valve.
A7: You can refer to the following FAQ to get detailed instructions:
How does KE100’s Smart Control work?
A8: KE100 supports Sub-G protocol which needs to work with KASA hub KH100. It doesn't support Zigbee or Z-Wave protocol.
A9: With three walls in between, the KE100 and hub can be separated by a maximum of around 45 meters. Please be aware that the real distance is influenced by the use environment. Wireless interference at home, the thickness of the wall, the location of the hub, and other factors may affect the real distance that the KE100 can receive the signal from the hub.
A10: Yes, you can follow up on the below instructions to set up the Kasa Smart Thermostatic Radiator Valve with Alexa and Google Assistant.
How to make my TP-Link Kasa Device work with Amazon Alexa
How to connect your TP-Link Kasa devices to Google Home
A11: No, KE100 doesn’t support Home Assistant.
A12: yes, each Hub can connect and manage up to 32 radiators.
A13: 3.0V DC (2 × AA/LR6 batteries included)
Note:
- Do NOT use rechargeable batteries or 1.2V AA.
- AA/LR6 Alkaline batteries are recommended.
Generally, the battery life of the KE100 can be over 1 year. But the frequency of use and the environment in which it is operated will both affect how long it will last.
A14: KE100 can be controlled via KASA APP currently. You can control the TRV to adjust the temperature through the KASA APP, and you can also query the temperature records for a period of time.
A15: The KE100 measures ambient room temperature but is often installed near heat sources like radiators. As a result, its readings may be higher than the actual room temperature.
To make the displayed temperature closer to the actual ambient temperature, use the “Temperature Offset” feature for calibration:
Displayed Temperature = Sensed Temperature + Offset
For instance, if the sensor consistently reads 2°C higher, setting an offset of -2 will correct the display.
Note:
Displayed Temperature refers to the current room temperature shown on the app.
Sensed Temperature refers to the temperature detected by the KE100 sensor.
A16: You can refer to the following FAQ to get detailed instructions:
Kasa Smart Thermostatic Radiator Valve KE100 Display Shows E1/E2 Error code
A17:
- If the display shows
or
, please refer to Q12 and Q13.
- If the display shows
, then the battery power is running low and the valve can’t work properly. Please replace the batteries.
- If the problem persists, please contact TP-Link technical support.
A18:
- Ensure that the hub and sub-device have been upgraded to the latest version of firmware and confirm that the APP has been upgraded to the latest version of the APP.
- Confirm whether other Tapo or Kasa devices in the same network are working normally.
- If possible, Try to move the KH100 to a location closer to the router or closer to the KE100, and then check whether the same problem still exists.
- If the problem persists, please contact TP-Link technical support.
A19:
- You can still manage the valve in the Kasa Smart app as long as your phone is connected to the same Wi-Fi network as the valve.
- Manual control still works. You can rotate the control knob to adjust the temperature.
- The schedules you have set will still activate as long as the connected hub works properly.
A20:
- Remove the cover of the valve, then use the cover-opener to press and hold the SYNC/RESET button for at least 5 seconds to reset the valve.
- Open the Kasa Smart app, then remove the valve on the Home page or in Device Settings. The valve will reset automatically.
Q21: Can KE100 work with external temperature sensors?
A21: Yes. The KE100 has a built-in temperature sensor, but you can also add a Tapo temperature sensor to it for temperature correction. A separate temperature sensor can be placed anywhere in the room to measure the ambient temperature, and Kasa Smart Valve KE100 can be set to regulate the temperature according to the information provided by the Tapo temperature sensor, ensuring that the area of your concern is always at the right temperature - not too hot and not too cold.
KE100 currently supports Tapo T310 and Tapo T315 temperature sensors. Temperature sensors need to be purchased separately.
You can follow the instructions below to add external temperature sensors for your KE100.
Note: Only the sensors that are online and bound to the same hub as your KE100 can be used as detection sensors.
Step 1: Directly connect your Tapo sensor to your Kasa smart hub KH100 in the Kasa Smart app. No need to get one extra Tapo hub.
Step 2: Go to the Device Settings page of KE100. Set temperature correction based on the designated sensor.
Q22: Can KE100 save energy use?
A22: Yes. KE100 can help you save energy without sacrificing comfort by setting different temperatures for different rooms according to your heating schedule, and automatically pausing heating when an open window is detected or when you leave home.
A23: Up to 10 KE100 devices can be added in one Group.
Note： The KE100 and other devices such as switches, bulbs, etc., cannot be added to the same group, because functions such as group temperature setting, and group heating scheduling are specifically designed for the TRV KE100 and heating groups.
A24: Yes, you can set Smart Actions to control your KE100 with the free Geofencing feature.
You can also choose an Effective Radius from 100m(328 ft) to 2000m(1.24 miles).
A25: The LED display on the KE100 provides visual feedback for device operations and status. When adjusting settings in the Kasa app (e.g., temperature, antifreeze mode, child lock) or manually turning the knob, the LED will light up, blink three times, and then turn off.
Note: During calibration, the LED remains on until the process is complete. If calibration is successful, the specific temperature value is displayed; if it fails, an error code (E1/E2) appears. After displaying the temperature or error code, the LED blinks three times and turns off.
Below is an image showing the location of the LEDs on the unit.
For detailed reference, please see the image below. Note that the temperature indicator lights have consistent meanings across different hardware versions, while the meanings of the lights for other icons may vary.
For KE100 V1.0:
For KE100 V1.2:
A26: Yes, you can rotate the LED display 180° by navigating to the Kasa app > KE100 > Device Settings > Display Settings.
A27: Once the Anti-blocking is enabled, the KE100 valve will be activated once a week to prevent the valve from blocking, even when the heating is not in use.
A28: When turned off, the thermostat will enter frost protection mode, which maintains a slight water flow at minimum temperature (typically around 5°C) to prevent pipes from freezing.
To close the valve completely, switch to Summer Mode in the thermostat's settings and then select the Fully Closed option.