Mobile:
Go to device settings,
Maintenance > Try to Repair
Web:
Right click > Repair
Next, Add entity
Now enter a part of the name of temperature entity, or the type; “target” should get you results.
When you notice the desired entity, select it
Next, adjust the proposed Homey capability; erase it and enter “target” or “temp”.
Now the target_temperature shows > select it
Press ok next next finish, and, in my case, my watermeter now has a target temperature dial:
