Radiator Thermostat II [+M] help

The E05 message on your Bosch Smart Home Radiator thermostat II means that the thermostat's plunger cannot move the valve pin on the radiator valve. This could indicate a stiff valve or a problem with the motor of the Radiator thermostat II.

Steps to find a solution

To investigate the problem, please follow these steps:

1.Remove the Radiator thermostat II from the radiator valve.

2. Remove one battery from the battery compartment.

3. Reinsert the battery and press the "O" button to confirm. If necessary, press the button again.

The calibration should now start.

If the E03 message appears

If the E03 "Calibration failed" message appears, please check the radiator valve for proper function. If necessary, consult a heating specialist.

If the E05 message continues to be displayed

If the E05 message persists, this could indicate a motor problem. In this case, please contact our

Customer Support

to discuss the next steps. We are here to help you!

The message E03 displayed on your Radiator thermostat II means that the valve pin could not be moved completely during calibration. In many cases, this is because the device was not mounted correctly on the valve or an incompatible adapter is being used. In this case, please carefully check the installation and use our adapter check to ensure that the correct accessories are being used.

It may also happen that the radiator valve is stiff or slightly calcified. Try carefully checking whether the valve pin can be moved manually. To further narrow down the behavior, you can also test the thermostat on another radiator. A quick look at the batteries is also useful, as insufficient voltage can affect calibration.

If the message continues to be displayed, our customer service is happy to provide further support.

If your inspection reveals a problem with the radiator valve itself, please contact a heating specialist.

In rare cases, it may happen that the small black pin on the Radiator thermostat II falls out. This can occur both during operation and directly during initial installation.

If you notice this behavior with your device, please contact our customer service so that we can review the case individually and provide you with the best possible support.

This error occurs if the motor installed in the Radiator thermostat II cannot rotate as required (hardware error).

This behavior can occur during operation (was already installed and in use) or directly during the initial installation. With the current FW, the TRV2 attempts to rectify the problem independently; if the attempt was unsuccessful, the customer can trigger another attempt in the Bosch Smart Home APP (link in the error message) or on the "O" button on the TRV2.

Please use this reply letter:

"Dear Mr. x,

Thank you for your inquiry.

Please first check whether the firmware of the Radiator thermostat II is up-to-date. You can view this information by going to the Bosch Smart Home app under: "More > Devices > Radiator thermostat > "affected device". If the device firmware is not up to date, update it first. If the device firmware is up to date, briefly press the "O" button on the Radiator thermostat II. In the following minutes, the Radiator thermostat II will attempt to solve the problem. If the process ends unsuccessfully after six minutes, repeat the solution attempt once.

If these steps do not lead to success, please send us the following information:

• Proof of purchase (invoice)
• Please provide us with the MAC address of your Bosch Smart Home controller.(To do this, open the Bosch Smart Home app and go to: "More > System > Bosch Smart Home controller")
• Please send us the system log of your Bosch Smart Home controller.(To do this, open the Bosch Smart Home app and go to: "More > System > System log")
• Please let us know the Zigbee EUI-64 number of the affected Radiator thermostat II.(You will find this on the inside of the battery compartment cover).
• Please send us a photo of the display on which the error message E04 can be seen.

We look forward to receiving your feedback in response to this e-mail.

Yours sincerely
Your Bosch Smart Home Team"

--

As soon as we have received the feedback and all the information is available, the case can be transferred to the 1st level for further analysis.

The E05 message on your Bosch Smart Home Radiator thermostat II means that the thermostat's plunger cannot move the valve pin on the radiator valve. This could indicate a stiff valve or a problem with the motor of the Radiator thermostat II.

Steps to find a solution

To investigate the problem, please follow these steps:

1.Remove the Radiator thermostat II from the radiator valve.

2. Remove one battery from the battery compartment.

3. Reinsert the battery and press the "O" button to confirm. If necessary, press the button again.

The calibration should now start.

If the E03 message appears

If the E03 "Calibration failed" message appears, please check the radiator valve for proper function. If necessary, consult a heating specialist.

If the E05 message continues to be displayed

If the E05 message persists, this could indicate a motor problem. In this case, please contact our

Customer Support

to discuss the next steps. We are here to help you!

The message E03 displayed on your Radiator thermostat II means that the valve pin could not be moved completely during calibration. In many cases, this is because the device was not mounted correctly on the valve or an incompatible adapter is being used. In this case, please carefully check the installation and use our adapter check to ensure that the correct accessories are being used.

It may also happen that the radiator valve is stiff or slightly calcified. Try carefully checking whether the valve pin can be moved manually. To further narrow down the behavior, you can also test the thermostat on another radiator. A quick look at the batteries is also useful, as insufficient voltage can affect calibration.

If the message continues to be displayed, our customer service is happy to provide further support.

If your inspection reveals a problem with the radiator valve itself, please contact a heating specialist.

In rare cases, it may happen that the small black pin on the Radiator thermostat II falls out. This can occur both during operation and directly during initial installation.

If you notice this behavior with your device, please contact our customer service so that we can review the case individually and provide you with the best possible support.

This error occurs if the motor installed in the Radiator thermostat II cannot rotate as required (hardware error).

This behavior can occur during operation (was already installed and in use) or directly during the initial installation. With the current FW, the TRV2 attempts to rectify the problem independently; if the attempt was unsuccessful, the customer can trigger another attempt in the Bosch Smart Home APP (link in the error message) or on the "O" button on the TRV2.

Please use this reply letter:

"Dear Mr. x,

Thank you for your inquiry.

Please first check whether the firmware of the Radiator thermostat II is up-to-date. You can view this information by going to the Bosch Smart Home app under: "More > Devices > Radiator thermostat > "affected device". If the device firmware is not up to date, update it first. If the device firmware is up to date, briefly press the "O" button on the Radiator thermostat II. In the following minutes, the Radiator thermostat II will attempt to solve the problem. If the process ends unsuccessfully after six minutes, repeat the solution attempt once.

If these steps do not lead to success, please send us the following information:

• Proof of purchase (invoice)
• Please provide us with the MAC address of your Bosch Smart Home controller.(To do this, open the Bosch Smart Home app and go to: "More > System > Bosch Smart Home controller")
• Please send us the system log of your Bosch Smart Home controller.(To do this, open the Bosch Smart Home app and go to: "More > System > System log")
• Please let us know the Zigbee EUI-64 number of the affected Radiator thermostat II.(You will find this on the inside of the battery compartment cover).
• Please send us a photo of the display on which the error message E04 can be seen.

We look forward to receiving your feedback in response to this e-mail.

Yours sincerely
Your Bosch Smart Home Team"

--

As soon as we have received the feedback and all the information is available, the case can be transferred to the 1st level for further analysis.

The E05 message on your Bosch Smart Home Radiator thermostat II means that the thermostat's plunger cannot move the valve pin on the radiator valve. This could indicate a stiff valve or a problem with the motor of the Radiator thermostat II.

Steps to find a solution

To investigate the problem, please follow these steps:

1.Remove the Radiator thermostat II from the radiator valve.

2. Remove one battery from the battery compartment.

3. Reinsert the battery and press the "O" button to confirm. If necessary, press the button again.

The calibration should now start.

If the E03 message appears

If the E03 "Calibration failed" message appears, please check the radiator valve for proper function. If necessary, consult a heating specialist.

If the E05 message continues to be displayed

If the E05 message persists, this could indicate a motor problem. In this case, please contact our

Customer Support

to discuss the next steps. We are here to help you!

The message E03 displayed on your Radiator thermostat II means that the valve pin could not be moved completely during calibration. In many cases, this is because the device was not mounted correctly on the valve or an incompatible adapter is being used. In this case, please carefully check the installation and use our adapter check to ensure that the correct accessories are being used.

It may also happen that the radiator valve is stiff or slightly calcified. Try carefully checking whether the valve pin can be moved manually. To further narrow down the behavior, you can also test the thermostat on another radiator. A quick look at the batteries is also useful, as insufficient voltage can affect calibration.

If the message continues to be displayed, our customer service is happy to provide further support.

If your inspection reveals a problem with the radiator valve itself, please contact a heating specialist.

In rare cases, it may happen that the small black pin on the Radiator thermostat II falls out. This can occur both during operation and directly during initial installation.

If you notice this behavior with your device, please contact our customer service so that we can review the case individually and provide you with the best possible support.

This error occurs if the motor installed in the Radiator thermostat II cannot rotate as required (hardware error).

This behavior can occur during operation (was already installed and in use) or directly during the initial installation. With the current FW, the TRV2 attempts to rectify the problem independently; if the attempt was unsuccessful, the customer can trigger another attempt in the Bosch Smart Home APP (link in the error message) or on the "O" button on the TRV2.

Please use this reply letter:

"Dear Mr. x,

Thank you for your inquiry.

Please first check whether the firmware of the Radiator thermostat II is up-to-date. You can view this information by going to the Bosch Smart Home app under: "More > Devices > Radiator thermostat > "affected device". If the device firmware is not up to date, update it first. If the device firmware is up to date, briefly press the "O" button on the Radiator thermostat II. In the following minutes, the Radiator thermostat II will attempt to solve the problem. If the process ends unsuccessfully after six minutes, repeat the solution attempt once.

If these steps do not lead to success, please send us the following information:

• Proof of purchase (invoice)
• Please provide us with the MAC address of your Bosch Smart Home controller.(To do this, open the Bosch Smart Home app and go to: "More > System > Bosch Smart Home controller")
• Please send us the system log of your Bosch Smart Home controller.(To do this, open the Bosch Smart Home app and go to: "More > System > System log")
• Please let us know the Zigbee EUI-64 number of the affected Radiator thermostat II.(You will find this on the inside of the battery compartment cover).
• Please send us a photo of the display on which the error message E04 can be seen.

We look forward to receiving your feedback in response to this e-mail.

Yours sincerely
Your Bosch Smart Home Team"

--

As soon as we have received the feedback and all the information is available, the case can be transferred to the 1st level for further analysis.

The E05 message on your Bosch Smart Home Radiator thermostat II means that the thermostat's plunger cannot move the valve pin on the radiator valve. This could indicate a stiff valve or a problem with the motor of the Radiator thermostat II.

Steps to find a solution

To investigate the problem, please follow these steps:

1.Remove the Radiator thermostat II from the radiator valve.

2. Remove one battery from the battery compartment.

3. Reinsert the battery and press the "O" button to confirm. If necessary, press the button again.

The calibration should now start.

If the E03 message appears

If the E03 "Calibration failed" message appears, please check the radiator valve for proper function. If necessary, consult a heating specialist.

If the E05 message continues to be displayed

If the E05 message persists, this could indicate a motor problem. In this case, please contact our

Customer Support

to discuss the next steps. We are here to help you!

The message E03 displayed on your Radiator thermostat II means that the valve pin could not be moved completely during calibration. In many cases, this is because the device was not mounted correctly on the valve or an incompatible adapter is being used. In this case, please carefully check the installation and use our adapter check to ensure that the correct accessories are being used.

It may also happen that the radiator valve is stiff or slightly calcified. Try carefully checking whether the valve pin can be moved manually. To further narrow down the behavior, you can also test the thermostat on another radiator. A quick look at the batteries is also useful, as insufficient voltage can affect calibration.

If the message continues to be displayed, our customer service is happy to provide further support.

If your inspection reveals a problem with the radiator valve itself, please contact a heating specialist.

In rare cases, it may happen that the small black pin on the Radiator thermostat II falls out. This can occur both during operation and directly during initial installation.

If you notice this behavior with your device, please contact our customer service so that we can review the case individually and provide you with the best possible support.

This error occurs if the motor installed in the Radiator thermostat II cannot rotate as required (hardware error).

This behavior can occur during operation (was already installed and in use) or directly during the initial installation. With the current FW, the TRV2 attempts to rectify the problem independently; if the attempt was unsuccessful, the customer can trigger another attempt in the Bosch Smart Home APP (link in the error message) or on the "O" button on the TRV2.

Please use this reply letter:

"Dear Mr. x,

Thank you for your inquiry.

Please first check whether the firmware of the Radiator thermostat II is up-to-date. You can view this information by going to the Bosch Smart Home app under: "More > Devices > Radiator thermostat > "affected device". If the device firmware is not up to date, update it first. If the device firmware is up to date, briefly press the "O" button on the Radiator thermostat II. In the following minutes, the Radiator thermostat II will attempt to solve the problem. If the process ends unsuccessfully after six minutes, repeat the solution attempt once.

If these steps do not lead to success, please send us the following information:

• Proof of purchase (invoice)
• Please provide us with the MAC address of your Bosch Smart Home controller.(To do this, open the Bosch Smart Home app and go to: "More > System > Bosch Smart Home controller")
• Please send us the system log of your Bosch Smart Home controller.(To do this, open the Bosch Smart Home app and go to: "More > System > System log")
• Please let us know the Zigbee EUI-64 number of the affected Radiator thermostat II.(You will find this on the inside of the battery compartment cover).
• Please send us a photo of the display on which the error message E04 can be seen.

We look forward to receiving your feedback in response to this e-mail.

Yours sincerely
Your Bosch Smart Home Team"

--

As soon as we have received the feedback and all the information is available, the case can be transferred to the 1st level for further analysis.