Problems with generic thermostat

[macvmacv]

Hello, I have a better thermostat integrated with a generic thermostat, the problem is that many times both the generic thermostat and the better thermostat make different decisions about activating the heating.
I do something wrong.
Attached yaml of the generic thermostat.
Thank you so much.

climate:

• platform: generic_thermostat
  name: Salón Int
  heater: switch.srsalonint
  target_sensor: sensor.termometro_salon_int_temperature
  min_temp: 15
  max_temp: 25
  ac_mode: false
  target_temp: 22.5
  cold_tolerance: 0.2
  hot_tolerance: 0.1
  min_cycle_duration:
  seconds: 5

  keep_alive:

  minutes: 3
  initial_hvac_mode: "off"
  away_temp: 16
  precision: 0.1