My automation does not work

[AlTedescino]

Hi, I am a complete newbie in HA and have created a very simple automation, which SHOULD switch on the heating if one of the temp sensors goes below certain temp. YAML source here:

alias: Chladno v domě 2
description: ""
triggers:
  - entity_id:
      - sensor.sonoff_snzb_02d_cidlo_teploty_teplota
      - sensor.sonoff_snzb_02d_cidlo_teploty_02_teplota
    below: 23
    trigger: numeric_state
conditions: []
actions:
  - target:
      device_id: af62e9c661f6edea9474999320c6fe91
    action: switch.turn_on
mode: single

… when I run the action manually from the context menu of the automation, then the switch goes on, but nothing happens if temperature sinks below the limit of 23 C. The automation switch is on in the list of automations. Any advice welcome Thank you, Cheers

[Didgeridrew]

Automations #1: trigger only fires when it changes from not true to true

In an automation written to run when the heating drops below 20C, the trigger will fire when the temperature changes from 20 to 19. trigger: - platform: numeric_state entity_id: - climate.study for: hours: 0 minutes: 10 seconds: 0 below: 20 It will not fire again until the temperature rises above 20C and drops for a second time. A trigger is an event… Not a state, but a change of state. This topic is part of the community-driven cookbook where you can f…

[Hellis81]

I suggest you set up a generic thermostat instead