Hi!
Unfortunately, the process will not start.
The test runs fine, no errors, but it never starts automatically.
What did I do wrong? Thanks.. 
Help me…
This flow will only run at 08:00 (or 00:05) so if nothing turns on (or off) it means the temperatures are below (over) your thresholds.
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If I start it manually, the processes don’t work either. I turn on simulation but then there is no control, not even once. I don’t understand 
If you start the flow manually, at which flowcard and which output does the flow stop?
The naming of all Temperature tags is the same, but I assume they relate to different devices. Is the selected Temperature tag the correct one in each of the Logic cards?
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Yes, the lines are good, temperature monitoring is fine. The conditions are external temperature and room temperature. The logic does not hang, the simulation runs as it should. Somehow the whole program does not start. If I remove the time start and start it manually, it does not execute anything either.
So just to double check: when you start the flow in test mode via the play button it completes until the very last flowcard on the right hand side of your canvas (so the last ‘turn on’ card), but the fan/fans does not/do not turn on?
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If I start it with simulation, it runs as it should. The pump and fan start. The problem is that the process does not start automatically.
Or if I start it, there is no shutdown (low temperature), I have to turn it off manually. It’s interesting because simpler logics work. I still have a 2018 pro model. Could this be the problem?
As a test:
- Create a new flow with a play button and a send push notification card;
- Have the card send the current date and time to you. Using the Date and Time tags.
Does Homey report the correct date/time?
Some other things to try:
- Remove the ‘time is …’ triggers and re-add them using the time picker;
- Restart your Homey.
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Thank you for your previous advice and help. I am grateful for it!
The problem is that the logic runs through the simulation, taking into account the conditions. However, it does not turn off, so it does not regulate the temperature.
The logic is that if the temperature in any room rises and the outside temperature exceeds 25 degrees, the pump and the fan coil where cooling is needed start.
I sent messages for troubleshooting, but none of them started the temperature increase.
The logic is good, where the temperature is lower, cooling does not start, it is visible.
If I put a simple start block for starting, it does not start automatically either.
I am sure I did something wrong, but I can’t figure out what…
Thanks for reading! 
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I think the problem is that both conditions of the All card will not be true. The card “temperature becomes greater/less” only triggers once.
You can replace the If-card “temperature becomes greater/less” with the If card “Temperature changed”, and add a AND logic card to test conditions. This way the flow will trigger when both conditions are true.
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So my understanding: You are looking at the outside temperature and the temperature of different rooms. If the trigger is based on the outside temperature then the condition for the outside temperature in each combi is superfluous.
The current trigger indeed only triggers 1 time when the tresshold is passed and then maybe the other condition is (not yet) met. Probably the inside temperature is following the outside temperature with a distance greater than 1.3 degree (the max difference used in the cards).
So as a trigger use the card ‘Temperature has changed’. Then the first condition is the one on the outside temperature being higher then 25C (instead of repeating it for each room).
From the upper (condition met) link you can then brnach to all cards checking the various room temperature.
From the lower (condition not met) link you can go to a card checking if the outide temperature is lower then 24C and from there again to the room related cards.
On a personal note, why is the outside temperature at all interesting, do you not just want to cool a room when it gets to hot (in my house I have had conditions where outside it was -14C and inside the sun drove up the temperature to 26C)
I’ve had similar issues with flows that only trigger when a threshold like temp (or other sensor reading) passes a certain point going in a certain direction. I’ve had better luck using that kind of thing to set a variable state so that I have a lasting condition indicator, then reversing that when the condition passes the threshold the other direction. I can then use that variable state to control the other behaviors as well. I’ve had really mixed results with using this kind of “becomes greater/less” card to trigger something. Not sure why.
I have also started using a delay/recheck strategy on things like air quality metrics triggering ventilation. If CO2 for instance passes a certain threshold, I wait 3 minutes and check it again before triggering the bath fans. It is fairly common to have CO2, VOC, PM1, PM2 spikes at the Airthings sensor location, and it only last a few minutes. It’s not worth ventilating every time that happens. If it persists, though, I trigger the fans for a 15-minute run.
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Can be done much simpler, just first calculate an average if you have multiple sensors and create a variable (do the same for outdoor sensors):
Then I use the following for opening or closing the window:
Ort his one for setting the thermostat:
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Hello!
I apologize for the late reply..
Thanks for the ideas, the mistake is definitely mine. I need to learn how to create logic and variables, because it won’t work otherwise. (unfortunately)
I consider external temperature measurement important because if it is lower than the internal temperature, it stops the cooling and opens a window.
The cooling plant is still working manually, because no matter what conditions I start it with, I get very variable results in operation.
If you have any simple ideas, I would be very happy to help.
Thanks..
-Thomas
Thanks for the examples. There are definitely more methods that could apply, but I’m not sure I’d say that this is simpler. The only thing I’m doing is trying to avoid transient spikes, so just retesting a few minutes later works fine. I’m ok with occasionally ventilating too much. I just don’t want to trigger the fans because someone was standing next to the Airthings monitor for a minute and raised the CO2 level.
In fact, Homey recently added a card that can check a value and specify a duration that it must remain above/below that value before the card proceeds as true. That solves my issue directly!
I’m really just getting into some more complex scripting and flows. I just started using a HomeyScript to change my Solar Inverter settings through a web interface for various things like seasonal changes, changes to Time of Use utility rates, storm prep based on weather alerts (charging batteries), etc. Fun stuff.
