Device Hardware Guide

Last updated: October 28, 2026

This guide tells you how to use the screen and the controls on Mysa for Electric Baseboard Heaters. It is for Gen3, V2, Lite and V1.

The screen

The screen shows the room temperature. When you change the temperature, the screen shows the setpoint for a short time. Then the screen shows the room temperature again.

In normal operation, the screen does not show the Wi-Fi status. If Mysa shows an error code, see Error codes on Mysa for Electric Baseboard Heaters or Gen3: Error codes.

Pairing icon

In pairing mode, the screen shows a pairing icon:

Controls by model

Gen3

  • Capacitive touch controls: Touch the up arrow or the down arrow to change the temperature.

  • Adaptive Brightness: A light sensor changes the brightness of the screen for the light in the room.

  • Wake on Approach: The screen comes on when you come near Mysa.

  • Hardware Lockout Options: Set what people can change at the thermostat.

V2

  • Touch controls: Touch the up arrow or the down arrow to change the temperature.

  • Adaptive Brightness: A light sensor changes the brightness of the screen for the light in the room.

  • Wake on Approach: The screen comes on when you come near Mysa.

Lite

  • Physical buttons: Push the up button or the down button to change the temperature.

  • No sensors: Set the brightness in the Mysa app.

V1

  • Touch controls: Touch the up arrow or the down arrow to change the temperature.

  • No sensors: Set the brightness in the Mysa app.

Control Mysa without Wi-Fi

Mysa operates as a thermostat when it has no Wi-Fi. You can change the temperature on Mysa.

Change the temperature: Push or touch the up arrow or the down arrow. The screen shows the setpoint for a short time. Then the screen shows the room temperature again.

Turn off the heat on V2, Lite or V1: Hold the down arrow until dashes blink on the screen. Mysa is off. Mysa does not heat until you turn it on again.

Turn on the heat on V2, Lite or V1: Push or touch the up arrow.

Gen3: Use the Mysa app to set Heat or Off. Do not use the V2, Lite or V1 steps on Gen3.

Change between Celsius and Fahrenheit

Change the temperature unit in the Mysa app, in the thermostat settings. For more information, see Device Settings: Baseboards.

Brightness

Gen3 and V2

Gen3 and V2 have Adaptive Brightness. The screen brightness changes for the light in the room. Gen3 and V2 also have Wake on Approach. The screen becomes brighter when you come near Mysa.

You can set the brightness levels in the Mysa app, in the thermostat settings. For more information, see Gen3: Brightness.

Lite and V1

Lite and V1 do not have Adaptive Brightness. Set the brightness in the Mysa app.

Restart Mysa

Hard reboot (all models)

Turn off the circuit breaker. Wait 30 seconds. Then turn on the circuit breaker.

This is the only restart for all models.

Do not hold the two arrows to restart Mysa

Do not hold the up arrow and the down arrow to restart Mysa. This hold resets Mysa:

  • V2, Lite and V1: A hold for 10 seconds resets Mysa. Mysa removes its Wi-Fi, its Apple Home (HomeKit) pairing, its schedule and its settings. Then you must set up Mysa again in the Mysa app.

  • Gen3: On Gen3, the same hold starts a countdown on the screen. When the countdown ends, Gen3 resets its Wi-Fi and removes all its smart home (Matter) connections. Then you must set up Gen3 again in the Mysa app, and add it to your smart home app again. For the steps, see Gen3: Pairing and reconnecting.

Get support

Send an email to support@getmysa.com.

For help with schedules, geofencing, sharing, homes, zones, Wi-Fi and more, see the Mysa App help section. For Gen3 product details, see Gen3: Overview and product specifications.