How To Fix E1 Error On Heater

My Smart Radiator Thermostat displays an E1, E2 or E4 fault. How can I ready this?

Acquire how to solve calibration errors on tado° Smart Radiator Thermostats. Hint: cheque pin and batteries.

Written by tado°
Updated over a week agone

The errors E1, E2 and E4 indicate an effect during the calibration of the Smart Radiator Thermostat. When a Smart Radiator Thermostat is attached to a mounting bracket, the device attempts to determine the positions in which the radiator valve is fully open and fully airtight. This procedure is referred to equally calibration.

If calibration fails, the Smart Radiator Thermostat will indicate the issue by showing ane of the following errors.

E1 mistake

On the Smart Radiator Thermostat Basic, the E1 mistake is indicated past the alarm and spanner symbols, and two dashes turning on.

An E1 mistake indicates that the closed position of the valve has not been detected. To resolve this, please unmount the Smart Radiator Thermostat and make certain that the mounting bracket is properly tightened to the valve body. Restart and remount the Smart Radiator Thermostat to restart calibration.

Note: If you are using an adapter, please recall that some of them may need a specific pin extender (provided in the tado° package) to work. For more information, please read this article on adapters that work with the Smart Radiator Thermostat.

E2 mistake

On the Smart Radiator Thermostat Basic, the E2 mistake is indicated past the alert and spanner symbols, and iv dashes turning on.

An E2 fault is shown when no contact is detected between the motor and the valve pin. To resolve this, please make sure that the mounting subclass and the adapter (if used) are attached properly to the radiator. Restart and remount the Smart Radiator Thermostat to restart calibration.

Note: If you are using an adapter, delight think that some of them may need a specific pin extender (provided in the tado° package) to work. For more than information, please read this article on adapters that work with the Smart Radiator Thermostat.

E4 mistake

On the Smart Radiator Thermostat Basic, E4 fault is indicated by the alert and spanner symbols, and six dashes turning on.

An E4 mistake is shown when the distance detected betwixt the open and airtight positions of the valve is too brusk. This can be an indicator that the radiator valve is blocked by calcification.

Use a spanner or a similar tool to move the pivot in and out to unblock the valve. Otherwise, re-install the old valve head and open up/close it multiple times to better the pin'due south movement. Then, restart and remount the Smart Radiator Thermostat to restart calibration.

If this doesn't solve the issue, it is possible that the accuse of the batteries in the device is low. Please replace the batteries. Then, restart and remount the Smart Radiator Thermostat to restart calibration.

If the calibration is not successful fifty-fifty after several attempts, please contact us via conversation with a clear picture (pdf or jpg) of the thermostatic valve body.

More information:

My Smart Radiator Thermostat shows an E0 error/the warning symbol is on. How tin I fix this?

Source: https://support.tado.com/en/articles/3482479-my-smart-radiator-thermostat-displays-an-e1-e2-or-e4-error-how-can-i-fix-this

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