Fan shutting off even if temp changes

#1

1) Give a description of the problem
Shutting off after 75 Minutes regardless of temp change

2) What is the expected behaviour?
I have a exhaust fan coming on when the Garage temp exceeds the temp of an outdoor sensor by 10 degrees. The fan should come on and stay on until the temp of the garage does not change for at least 75 minutes.

3) What is happening/not happening?
The fan is shutting off after 75 Minutes regardless of temp change.

**4) Post a Green Snapshot of the piston![image|45x37]

image
image.png1178×642 14.5 KB

5) Attach logs after turning logging level to Full
Just enabled to full so no logs as of yet.

#2

Here is an idea,
Maybe sthub is not registering the temp change on that sensor?? In that case webcore is blind. All it sees is no temp change…
I’d try refresh or ping every 30 minutes maybe??
Where do you see the temp change?? In st app or someother temp control in the room?

#3

Your temperature unchanged is the only trigger in your piston (lightning bolt) so it won’t even see to turn on until the temperature is constant for 75 minutes. Need to change your first if to a trigger (becomes greater than).

#4

I would drag and drop your first IF to the inside of the second IF block