Tankless Water Heater Rinnai Control-r Won’t Connect to WiFi (Steps Guide to Solve)

Rinnai Control-R devices may not connect to your WiFi network for various reasons. You can resolve the problem with simple solutions and get your device up and running in no time. Continuing on, we’ll check the most common reasons why you can’t connect to WiFi with your Rinnai Control-R and provide step-by-step instructions to fix it.

Rinnai Control-r Won't Connect to WiFi

How Do You Fix Rinnai Control-R Wi-Fi Connectivity Issues?

Using the Rinnai Control-R, you can control your Rinnai tankless water heater from anywhere in the world. To fully utilize the Control-R, it must be connected to your home WiFi network. Unfortunately, the device can only sometimes connect to WiFi, which creates frustration and inconvenience for users. To help you resolve the issue, we will discuss why the Rinnai Control-R may not connect to WiFi and provide resolutions.

Step 1. Prepare Your Router

Ensure your router is set up and working properly before connecting your Control-R device to your WiFi network. Contact your internet service provider if you need assistance or check the manual that came with your router.

Step 2. Turn on Your Control-R

Connect the Control-R device to an electrical outlet and turn it on. Normally, the device will turn on automatically.

Step 3. Click on WiFi Settings

From the main menu on the Control-R device, select “Settings” and then “WiFi.” You will be asked to confirm that you want to connect the device to your WiFi network.

Step 4. Select WiFi Network

The device will detect wireless networks after scanning. Please select the desired network when it appears in the list. Next, you will be prompted to enter your network password.

Step 5. Enter WiFi Password

Use the on-screen keyboard to enter the password for your WiFi network. Your device will attempt to connect to your network after entering the password.

Step 6. Verify Connection

The device will display “Connected to [network name]” if the connection was successful. If the connection is unsuccessful, you will be prompted to try again.

Step 7. Using the Rinnai App

Once you have completed the setup process, you must register the Control-R with the Rinnai App. Download the app from the App Store or Google Play Store and follow the on-screen instructions to register your device.

Important Note:

If you follow these steps, you can connect your Rinnai Control-R to your WiFi network without any problems. Please get in touch with Rinnai customer support if you encounter any issues. The Control-R connects to your WiFi network, so you can remotely control your tankless water heater.

Frequently Asked Questions And Answers

How Do I Reset My Rinnai WIFI Module?

When the LED blinks RED and WHITE, press and hold the Connect button for 3 seconds, then QUICKLY tap three times. Restoring the module to factory settings will restore it to its original state.

What Should I Do if My Rinnai Hot Water Remote Is Not Working?

If the remote is not working, check to ensure that the power is turned on to the hot water unit and the remote control. If the problem persists, refer to the specific model’s manual for troubleshooting tips or contact Rinnai customer support.

How Does Rinnai Control R Work?

Using a two-wire interface, the Control-RTM Module easily attaches to Rinnai Tankless Water Heaters to enable wireless monitoring. Using your smartphone or tablet, you can control your Rinnai Tankless Water Heater once it has been connected and the free Rinnai mobile app has been downloaded.


In conclusion, connecting your Rinnai Control-R to your WiFi network is an easy process allowing you to control your tankless water heater from anywhere. You can quickly unlock the full potential of your Control-R device by following these simple instructions.

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