There can be many reasons:

  1. Themo is in Manual mode, not SLS mode
  2. Themo machine learning period is approximately 1 week and during that time it can overheat or undercool your floor or heat during wrong time periods.
  3. Your floor temperature was below minimum. Themo is always programmed to maintain minimum temperature regardless of the price. For more info see section Technology.
  4. Your floor has unique heating characteristics which make the Themo prediction complicated. See section Technology.