It returns True.
Good! That means the template works properly.
When the Template Binary Sensor uses that template it will report True as on and False as off. Those are the two states you can use for triggering an automation.
Usually not 0.00W
Ok, so changing back to True again. Any other ideas? I thought this should be an easy one… 
A binary sensors reports its state as on or off. Just look in the States page and you’ll see that. Your automation’s trigger should use on.
binary_sensor:
- platform: template
sensors:
washingmachine_idle:
friendly_name: 'Washing Machine Idle'
entity_id: switch.tvattmaskin
value_template: "{{ state_attr('switch.tvattmaskin', 'current_power_w') | replace(' W', '') | float < 1.5 }}"
automation:
alias: wm_done
trigger:
platform: state
entity_id: binary_sensor.washingmachine_idle
to: 'on'
action:
service: notify.ios_ivans_iphone
data:
title: "Washing is done."
message: "Washing machine stopped."
while you are on the states page look to see what the current state of your “binary_sensor.washingmachine_idle” is? on or off? and does it exist?
I was wondering if the syntax of the template might be an issue. That’s why I was asking for that screen shot just to verify it wasn’t reporting in some weird json format that needed the square brackets.
Yeah, nothing but the string True returns. No markup or any other chars.
I found a lost “binary_” in my text. Got overwritten in a save somehow, I guess. Testing that now. Again with your above ideas. Hold on 
did you ever verify that the automation state was ‘on’? i don’t see an answer to that question i asked above.
Sorry, I replied with a screenshot of the state page entity, showing the binary_sensor as on. Maybe you searched for something else?
I amtracking the psuedo binary sensor as icon in home assistant card and it changes from on to off and back to on again as intended.
Is it possible to get extended log information? Right now it doesn´t show triggers etc…?
not the state of the binary_sensor. I saw that.
I wanted to know the state of the “automation.wm_done”.
Ok, great thinking. It has not triggered today:
[automation.wm_done] | on | last_triggered: 2019-04-13T19:13:59.164771+00:00 friendly_name: wm_done
What does it mean that an automation is “on”?
well, crap.
The automation is actually on. i was hoping it was off because that would have been a really easy fix (i.e. turn it on).
now we need to do more troubleshooting.
Hehe, ok so the “on” tag for automation is simply if its active/listening or not.
Well all help is greatly appriciated! 
I am not allowed to post more posts today obviously
Reply to your below question:
It´s psuedo just because it does not exist in reality. It´s a binary sensor that I have created myself for this prupose. It is the same sensor mentioned everywhere - I have no other sensors in this automation.
Meaning I have a switch with energy monitor, that I use as a imaginary binary sensor - on when under 1.5W, off when above. Then I use that sensor for triggering the push… Well so I thought…
I guess I´ll be back tomorrow when I am welcome by the system again
what is that? is that different than the other binary sensor that you listed above?
yes
Ok I just wanted to make sure we were all on the same page.
and that’s strange. i didn’t realize there were limits on posting like that for users.
see you tomorrow then! 
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Edit: just realised you are using a binary sensor instead of an input_boolean. Never mind my remarks, still you might get some inspiration from the examples below 
I see an automation for turning on the input_boolean ‘Washing machine idle’, but I don’t see an automation for turning it off again. If it remains ‘on’ all the time, it will never trigger the automation.
Did you manually turn off the input_boolean before each test run? You’ll also need some logic for that part in your automation.
Here’s my stuff for inspiration, it’s been working perfectly:
Template sensor:
- platform: template
sensors:
washer_pwrdn:
value_template: "{{ states('sensor.plug_wasmachine_power') | int < 3.4 }}"
Input boolean:
input_boolean:
washer_status:
name: Status wasmachine
initial: off
Automations:
- alias: Wasmachine start
trigger:
platform: state
entity_id: sensor.washer_pwrdn
from: 'True'
to: 'False'
action:
service: input_boolean.turn_on
entity_id: input_boolean.washer_status
- alias: Wasmachine ready
trigger:
platform: state
entity_id: sensor.washer_pwrdn
from: 'False'
to: 'True'
for:
seconds: 90
condition:
condition: state
entity_id: input_boolean.washer_status
state: 'on'
action:
- service: notify.by_telegram
data:
message: De wasmachine is klaar.
- service: input_boolean.turn_off
entity_id: input_boolean.washer_status
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but it will write a warning in log file, won’t it?