Connecting Xiaomi Smartmi air humidifier to the app: a complete guide to debunking errors

Xiaomi Smartmi Air Humidifier is one of the most popular smart home devices, combining efficiency, compactness and integration with the Mi Home ecosystem. However, many users face difficulties when connecting for the first time: the device does not find the network, the application does not see the humidifier, or the setup process is cut short in half.

We will take a detailed look at the two official management applications, Mi Home and Mijia, compare their capabilities, and give recommendations on choosing the optimal server region (China, Europe, Russia), especially focusing on hidden humidifier settings, which are not documented in the official instructions, but significantly expand the functionality.

If you’ve just unpacked the Smartmi Evaporative Humidifier, Smartmi Air Humidifier 2 or another model in the series, this will save you time and nerves. And for power users, we’ve prepared a section with advanced settings, including automation through Home Assistant and integration with voice assistants.

1. Preparation of the humidifier and smartphone before connection

Before you start setting up, make sure all the preconditions are met, and neglecting this step is the main cause of 70% of connection errors.

To successfully synchronize the device with the application, you will need:

• 📱 Android 6.0+ or iOS 12.0+ smartphone with Bluetooth and Wi-Fi enabled
• 🌐 Stable 2.4 GHz network connection (Smartmi humidifiers do not support 5 GHz)
• 🔋 Smartphone battery charge not lower than 30% (at low charge Android/iOS can suspend background processes)
• 📦 Smartmi humidifier with water level not below the minimum mark (even if you don't plan to turn it on right away)

Important: If your router is running 802.11r (Fast Roaming) or using WPA3-Enterprise, temporarily disable these features. Xiaomi devices often conflict with corporate encryption standards. Also check that the network name does not have Cyrillic characters or spaces - this can cause a failure when transferring SSID.

⚠️ Warning: If the humidifier has previously been connected to another Mi Home account, reset to factory settings. To do this, hold the power button for 5 seconds until the indicator flashes orange.

2. App selection: Mi Home vs Mijia - which is better for Smartmi?

Xiaomi offers two official applications for managing Smartmi humidifiers: the classic Mi Home and the updated Mijia. Despite the similar functionality, there are critical differences between the two.

For most users, we recommend Mi Home, which is more stable with humidifiers and offers more automation options, but if you want speed and minimalist interface, try Mijia, both of which are available on the App Store and Google Play.

Tip: If you already have other Xiaomi devices (like a robot vacuum cleaner or Yeelight light bulbs), use the same app you do for them.Mixing Mi Home and Mijia can lead to conflicts in the ecosystem.

3. Step-by-step instruction: connecting the humidifier to the Mi Home

Follow this algorithm to avoid the typical mistakes, and if you're stuck at some point, don't close the app, but wait for a timeout (usually 30-60 seconds).

Install the Mi Home |Apple Register your Xiaomi |Plug your smartphone on 2.4GHz |Plug the humidifier with water to the minimum |Make sure the indicator on the device flashes blue (standby)

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Next, follow the following steps:

1. Open Mi Home and press + → Add the device.
2. Select the category Smart Home → Humidifier.
3. Specify your device model (e.g. Smartmi Evaporative Humidifier 2). If the model is not listed, select Another Xiaomi Humidifier.
4. Confirm that the indicator on the humidifier flashes blue (if not, hold the power button for 3 seconds).
5. Bring the smartphone at a distance of 10-20 cm to the device and wait for the sound signal.
6. Select your 2.4GHz Wi-Fi network and enter a password. If the network doesn't show up, make sure the router doesn't hide the SSID.
7. Wait until the connection is completed (it can take up to 2 minutes), and successful completion will confirm the green indicator on the humidifier.

If in step 5 the application gives an error "I failed to connect", try:

• 🔄 Reboot the router and humidifier (pull out the plug for 10 seconds).
• 📶 Switch to another 2.4 GHz network (e.g., guest network).
• 📱 Enable Do Not Disturb on your smartphone (sometimes notifications interrupt the process).

💡

If the humidifier is not detected by Bluetooth, try connecting through the device's access point. Hold the power button for 8 seconds until the indicator flashes white quickly. Then, in the smartphone's Wi-Fi settings, select a network called SMARTMI-XXXX and return to the application.

4.Urgent settings after connection

Once synchronized successfully, the device will appear in the main menu of the application, and you can now configure the basic parameters of operation:

Open the humidifier card and go to Settings (⚙️).

• 💧 Target humidity level (recommended value: 40-60%).
• 🌬️ Operating mode: Auto, Night, Children's or Manual control.
• 🕒 Timer: Shutdown after 1-12 hours.
• 🔄 Spray direction (for rotary spray models).
• 🛠️ Cleaning: Reminder to replace the filter (every 3-6 months).

For Smartmi Air Humidifier 2 and later, the Smart Humidity function is available, which automatically maintains a given level by focusing on the built-in hygrometer data.

1. Go to Settings → Mode of work.
2. Pick the Auto.
3. Set a target humidity (e.g. 50%).
4. Activate the "Smart Adjustment" option.

⚠️ Warning: If the humidifier shows inflated humidity (e.g. 80% at real 50%), calibrate the sensor. To do this, place the device in a sealed salt bag for 12 hours, then reset the settings through the app.

5. Common mistakes and their solutions

Even with the correct instructions, users face problems, and we've collected the most common errors and ways to fix them.

If the humidifier connects but shuts down after a few minutes, check:

• 🔌 Power Stability (try another connector or network filter).
• 📡 Wi-Fi signal at installation site (must be at least -70 dBm).
• ⚙️ Power saving settings on your smartphone (turn off optimization for Mi Home).

For Smartmi Evaporative Humidifier models with display, an E1 error indicates a fan problem and an E2 indicates a humidity sensor malfunction, both requiring a call to a service center.

💡

If the humidifier is not connected despite all efforts, try changing the server region in Mi Home to Mainland China. To do this, go to the account profile → Settings → Region. After changing the region, you need to add the device again.

6 Advanced Settings: Automation and Integration

For power users, the Smartmi humidifier offers capabilities far beyond the basic functionality. Let's look at how to set up automation and integrate the device with other systems.

Scripts at Mi Home:

You can create a chain of actions, for example:

• 🌡️ If humidity < 40% → Turn on the humidifier for 30 minutes.
• 🛏️ If it's 22:00 → Switch to night mode.
• 🚪 If the window is open (Aqara sensor) → Turn off the humidifier.

To set up, go to Profile → Smart Scenarios → Add a script. You can use data from other Xiaomi devices, such as the Aqara thermohygrometer, as triggers.

Integration with Home Assistant:

If you use Home Assistant, add a humidifier through the Xiaomi Miio component:

# Configuration for Configuration.yaml


fan:




- platform: xiaomi_miio




name: "Smartmi Humidifier"




host: 192.168.1.100 # IP-devices




Token: "YOUR_TOKEN" #Receive via Mi Home Token Extractor




model: zhimi.humidifier.ca1

The device’s token can be retrieved using the Mi Home Token Extractor app (available on GitHub).Once added, the humidifier will be available for automation in Home Assistant, including voice control via Google Assistant or Alice.

💡

To turn on the humidifier 30 minutes before you wake up, create a script in Mi Home with the trigger "Alarm clock" (requires synchronization with the Mi Fit application).

7. Update firmware and reset settings

Regular firmware updates fix bugs and add new features. Check the relevance of the software version:

1. Open the device card in Mi Home.
2. Go to Settings (⚙️) → Update the firmware.
3. If a new version is available, click Update.

The update process takes 5-10 minutes, and do not disconnect the humidifier from the power during the procedure, which can damage the firmware.

• 🔌 Disconnect the device from the network for 15 seconds.
• 🔄 Re-enable and check your Wi-Fi connection.
• 📱 Re-launch the Mi Home app.

For a complete reset (for example, before selling the device):

1. Hold the power button for 10 seconds until the indicator starts flashing yellow.
2. Release the button and the device will reset.
3. After rebooting (the indicator will turn blue), you can connect the humidifier to the new account.

⚠️ Warning: Reset removes all user settings, including the filter resource counter. If you've recently changed the filter, write down the current value before resetting.

FAQ: Frequent questions about Smartmi connectivity