An automation has three parts (that you need to worry about for now).
- Something that triggers the automation,
- something that validates if everything is in place or conditions are okay to continue for the action of the automation, and
- the actual action
You “have to” have at least 1. and 3. defined. It appears your automation only defines the trigger.
So in your case what is the trigger? The trigger is the Aqara - master bedroom temperature is below 62.8F (presuming this is F, and not Celsius, Kelvin, or Rankine).
What are the conditions you have where even though the temperature is below 62.8F you would want to turn on the heater?
For example, you are not home, or the sun is below the horizon (like chilly bedroom), or the electric rate is too high, or… anything you can think of. Those could be reasons not to turn on the heater.
So -
.a Trigger: The temperature is below 62.8F!
.b Condition: the heater switch is not ON, AND
.c.1. Condition: @invisible999 is home, OR
.c.2. Condition: Spouse is home
.c Actions: Turn the switch ON
Here is a simple example where HA turns on a switch (which is connected to a light) if there is motion.
My Trigger is a motion sensor called (suprisingly) MotionSensor1. If it detects motion, it drops to Conditions.
For me, I check two things, if I am home (Confirm info4hx4 is home) AND the switch, in this case PlugRelay2 is off. If BOTH are true (notice the little indentation of the two and the line Test if 2 conditions match preceded with an &), then Actions!
My Actions is simple, just turn on the PlugRelay2, which happens to be a plug relay that has a light stuck in it.
I suggest you skip the Conditions to try it out first. If that works, you can weave into it all kinds of Conditions. A neat little feature is that you can execute the Actions by clicking the triple-vertical-bubbles on the line where it says (for me) Turn on PlugRelay2 Switch, and selecting Run. Helps checking if you have the right entity.
You can also check if the Conditions are true, at individual row level, or overall, by selecting Test in the right of Test if 2 conditions match, or at the individual condition’s triple-bubbles.
Hope this helps.