That helped! Thanks. I didn't know I needed to leave the dial on 6 until it finished and that it had to reach 0 kpa. After draining the furnace and putting the dial back to 6 the light turned off.

@brehmluke I just made a change to the Flush light IC chip, not sure it was a problem, but I had double labeled alias's , so I repaired it. Check out the flush light IC chip and make sure you have the light on d0 and the furnaceIC chip on d1.
But if your valves are not going off, then it is an issue with your auto fill and flush IC chip. Most like you are not pulling it down to 0 for some reason, that will make it stick there.

Here is the flush code:
flush:​
s d1 On 0​
l r11 d0 Temperature #load furnance temp​
sgt r8 r11 273 #if temp over 273 turn on No2​
s d5 On r8 # saving No2Pump On to device​
sgt r3 r1 0 # compare furnance pressure > 0​
s d2 On r3 # saving On to OutputPump​
s db Setting r3​
yield​
yield​
yield​
yield​
j start

Notice if the temp is over 273 Kelvin or the Pressure is over 0 pa, that the vlaves will stay on, which will make the light stay on.

@brehmluke , whats the temperature of your N2 gas that you use for the flushing? Does the furnace ever get to 0 kpa and 0 temp?

I'm having a problem that the flush light never goes off and it never turns the N2 and Return pump off. I've tried leaving the dial at 6 for a long time and also turning it to 0. I have everything setup correctly as far as I know. Any idea what I'm doing wrong?

@McyD I just used a happy medium to conserve power. If you are setting your N2 pump to 50 for cooling and flushing, I would suggest at least 60 on the output pump.
The pumps use way too much power, but the higher the setting the faster it will cool it down and flush it out.

What is the ideal volume pump output rate for this? I usually max them out, so 100l, but will that pump to fast for the system?

@Parrot the issue with Aliases and assigning them to registers is that there are not enough registers. You have to reuse alot of them to acheive the desired outcome. I wrote these programs as I was actually learning them myself.. I just dove right in, and actually created something that I think was pretty fantastic for a beginner to achieve. I know there is some issues with the way I wrote it, and I know there is alot of people that could do this 100 times better, but I managed to make it work, on about as few chips as possible I believe. I will try to look into doing more comments, but the room is limited for comments in the code part, and you are only allowed 128 lines in the program as well. i really appreciate your comments on where I can improve it, and I will see what I can do, when I don't have so many irons burning in the fire so to speak.

ok i got it working now...PLEASE PLEASE PLEASE do a review and correctly label all programs , I/O-screws and try to comment more in the program or use aliases instead of just plain registers...

@Parrot I did alot of copy and paste of code to Notepadd ++ and probably just left those comments in, but the Chips and code work. Not sure how you have your setup done, but you will have alot of IC chips, one for each code. You will need all the valves, and pumps listed and be sure to set the valves and furnace, so forth to the correct dial on the IC chip for that code. If you can't figure it out, you can send me your save game minus the backup folder, and I will take a look at it

I just downloaded everey IC program from the collection and i am having trouble setting this up.
Why has every Program the Steel Light in it (it should be named after the ingot youre trying to smelt?)?
First i installed this program on a ic , then all other ores and the all ore ic and the flush light ic... nothing works , doesnt flush , turns on the input mixer immediately when turning on the main ic...

Please leave a comment if you are having any issues with the build, I have not run across any bugs on the build yet, and still is working great on my end.

@Roughy Glad you like it.

This is GREAT, Thank you for posting your work.

Ah No2 not N2O lol

Ah i found where i read it ;)
In your Note above :

Note: My No2 gas for flushing the furnace is always cooled below 20c, and if your gas is not that cool, change line number 66 to whatever temp you would like to close the No2 pump.

Ah thanks dont know where i read from the N2O.
N2 is easyer to become.

I use N2 for flushing, not N20. N2 = Nitrogen , N2O is nitrous oxide

I Mean the N2O for flushing.

Yes i know.
The Filter is faulty, all other Filters work right.
The N2O Filter consumes N2O and give H2O out.

@winwas there is a Nitrogen filter for your filtration unit. The filtration unit will output only the gas that the filter itself is. You have a Input, output, and waste pipe.

How to get the N2O Gas for flushing?
The N2O Filter only gives Water out on filtration.

Well I have not seen any complaints on it yet, So I am hoping that it is working as intended!

Added description to code lines, to help in understanding of what the code is doing!

Auto Activate fo Furnace has been added!

@williamv1999: Thank you! and thanks for the list. I hope, i have all! Big Thanks and LIKE!!!

Don't for get to get all the IC code you need for the full experience here: https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1542347661

Note: If you leave your Dial set to anything other than 0 or 6, the furnace will continue to attempt to keep running at setpoints untill you run out of fuel.. So be sure to always turn to 0 or 6 once you are done smelting. 6 will auto shutdown once it is cool and empty.

@Melwehr You are very welcome. i hope that everyone enjoys it.. I am so new to this IC scripting, that it took me quite a while to figure this out, and then work out the bugs I found in it. i hope it helps you in your building.

Thank you for this IC Programm!

The build is pretty straight forward. If you need help, just let me know here in the comments. I am using cooled N2 as my purge into the furnance to help cool it down on the vent stage.