Make up air unit not heating

power flame burner with flame safeguard lock out. return and outdoor air dampers hacked by others, let's figure out how it's supposed to work and set actuators properly.

[@jasonjohnsonHVAC]

Yeah buddy....great troubleshooting Steve...you took what it wasn't doing, combined it with what it should be doing and changed what needed to be changed to suit the customers need and have a safe and reliable operating system. Nicely done....you are a sharp dude and know your stuff

[@EverythingHVACR]

Thank you, Jason!

[@kyleh1974]

Wow that air makeup is way cleaner than any of the junk I work on. Access is always the worst on them. I've had to do some sketchy stuff to get into them. Good work!

[@EverythingHVACR]

Thanks Kyle!

[@stevencossaboon3237]

Great job Steve. That thing was a effing mess. At least they found the right man to figure it out.

[@EverythingHVACR]

Thanks Steven!

[@HughesManHVAC]

Awesome video Steve! Found myself invested in the diagnosis and commentary.

[@EverythingHVACR]

Thank you, sir! I appreciate that, Ryan. I'm getting more comfortable working on crap I don't really know anything about, which is basically what I do most of the time, lol

[@jochemsluis8834]

Well done. I had a fault with the a/c system before Christmas and only open a few months and faulting out on super heat. It ended up the controller was set to wrong gas and compressor. Trying tech support was fun at this time. I was there when they weren't. I reprogrammed the controller and fine now.

[@EverythingHVACR]

It happens. Stuff doesn't get set up correctly or gets adjusted incorrectly. Thanks Jochem!

[@zekenzy6486]

Great Video. Thank you for sharing

[@EverythingHVACR]

Thanks ZE!

[@WillieMakeit]

thanks man really helped me understand the controls

[@EverythingHVACR]

Thanks, shitsgettingreal! I didn't do a great job of explaining, I was trying to figure it out myself on the fly.

[@georgebrabec1749]

We have a lot of these here in Houston mostly

[@thesilentonevictor]

Great touch on it one

[@EverythingHVACR]

Thanks neilvester!

[@Eddy63]

Good little vid Steve-o and that was a good live stream the other night ... Thx ...

[@EverythingHVACR]

Thanks Eddy!

[@georgebrabec1749]

Sorry lost it, they have basically a rack of compressors feeding a multi-circuit evaporator. Some of them control the humidity from the outside air and have either gas or electric reheat. There are different manufactures other than Aaon. All of these are design build per engineer specs. No diagrams abd no way to get them. Great job, considering how you had to use an extension ladder to get to it.

[@EverythingHVACR]

Thanks, George! We see a lot of these as well. Once you understand the basic operation, you have to understand what it was designed to do, then they are not too bad.

[@lowrybrock8272]

Does it break so often they leave a ladder laying there to work on it? Take care and stay warm out there.

[@EverythingHVACR]

😆, I actually hadn't considered that. These do tend to get jacked up. People dont understand them, so they just start messing with controls. Thanks, Lowry Brock!

[@ccthepope]

dang not only are you smart but brave also (to be up on that ladder in the ice)

[@EverythingHVACR]

Lol, it wasn't so bad once the ice was gone. The concrete platform was not always there. They added to allow better access. Thanks r aeronca!

[@c21meister]

Are you in Canada?

[@EverythingHVACR]

No, I'm from KY. Do i sound like I'm from Canada 😆. Thanks, Charles!

[@c21meister]

@@EverythingHVACR oh no lol the thermostat readout was in Celsius

[@EverythingHVACR]

Lol, the unit was not from US that's for sure.

[@carlseiz1266]

I swear when they put these systems in they don't think about when they need to be repaired I should be in a better location easier for you to repair

[@EverythingHVACR]

💯 Thanks carl!

[@billy5032]

Air turnover units are a PIA

[@EverythingHVACR]

Yup, Thanks Billy! We work on a lot around here

[@SoutheastHVAC]

That’s a sketchy unit to work on being so tall like that

[@EverythingHVACR]

Yes, it is. The concrete was added to help access, and think about before, it was damn near impossible.

[@adamdnewman]

It takes a professional to take jaked hackery and fix it *right*

[@EverythingHVACR]

Thanks, Adam.

[@kennyw7453]

ICE (Industrial Commercial Equipment) is out of business but ICE Western (also in Canada) now manufactures and supports their equipment. Not sure if they bought them or if the merged or something else.

[@EverythingHVACR]

Interesting, we tried to get information, but the wire diagram wasn't this specific unit, and that's all we could get. Thanks Kenny W