25 Ton AAON Roof Top Unit, Both Condenser Coils Leaking And What Caused The Leaks

Service call of no cooling on this 25 ton Aaon roof top unit. Both condesner coils leaking and both circuits were flat out of refrigerant.

Hello Everyone,
In this video I take a look at a Aaon roof top unit experiencing no cooling issues. I show the locations of the leaks and what caused the leaks. Also I discuss why it is so important to do your due diligence when troubleshooting problems to ensure the correct and complete diagnosis is made. I am a NJ Master HVACR contractor license holder, home renovator and handyman. I have extensive experience in the HVAC field along with adequate knowledge in plumbing, electrical and carpentry to perform most tasks around a house. Subscribe to my channel for more around the home how to videos and other informative content. This video is not sponsored by any brands, products or companies seen or referred to in the video. Always check for power to verify electrical source has been isolated before working on any HVAC equipment. Always remember to follow all manufacturer safety guidelines, recommendations and requirements when working with any powered and non powered tools.

[maheradous]

This is very good you replacment every part not working.

[CZDigger]

Well done. I’m working on one now. Same unit. Leaky unit since start up. Took a minute, but after looking through the system on a pc, saw Circuit 1 down again to 78 psi. What I don’t like is that there was no alarm. I figured after so many start attempts it would generate an alarm or the LP read would do it. Standing pressure of R410 is relatively high, even on cold days. But no such luck. So had to dig a little to find the issue. Contractor coming out to do the warranty work on it. So just hanging and saw your vid.

[Pebo]

I'm with you Bro when it comes to Aaon RTUs. Right now I have a 12 year old 100% outside air RN-050 serving an automotive service shop. 20, 000 CFM, 2 desiccant wheels. 2 compressors down and a condenser fan motor. It's repair or replace time. $196, 000 smackaroos and a 26 week wait. Fortunately we have 4 Carrier 10 ton units doing a fairly good job of carrying the load.

[nathandaubis]

do videos on the 100 ton AAON UNITS. this video was great.

[soundsleeper]

Damn good vid keep it up. it had backfired on me many times, always do diligence

[pineychristian]

I have had a few issues also on AAON's. It's like any commercial RTU, they all have problems. Daikin's have had nothing but problems and they don't stand behind their products. Be glad you don't work on Daikin's

[howardharaway]

I'm working on a Daikin/Goodman 15 ton.
Zero Charge. Pumped it up with trace gas and nitrogen to 350 psig.
It is a extremely windy day and I cannot pin point the leak. There is a oil stain on the complete width of the bottom of the coil. My sniffer is going off in several spots but not consistently. I finally used bubbles. No luck. I wanna either evacuate the other circuit and cut the coil out and try repairing at the shop on a work bench or replace the c.coil all together.
My boss claims there is no leak you cannot find AND repair. If I wasn't dealing with a extremely windy day. I may be able to pin point leak (s) .I feel I am letting my boss down for not finding and fixing it.
Another thing. Daikin uses 1/4" tubing which makes the rows tight where if you try and cut the alum.fin away, you risk damaging the other circuit tubing by either denting it or gouging it and creating another leak. Anyones thoughts ?

[joehernandez]

Why have separate condenser fan compartments? Recipe for disaster. We have several AAON units. none have closed off compartments.

[WswRefrigeration]

Amy update to this? Aaon warrantying everything?

[marvinosegueda]

I’m working on a 25 ton system and the compressor #1 makes aloud noise it sucks

[USAGE]

😂 heatwave at 98. That’s chilling temps

[ricardomuniz]

Get yourself a utility wagon for these jobs, save your back and knees from all these trips

[adampajcz]

We replaced the condenser fan motor and blade on an AAON unit as well as doing a PM. Shaft came loose on the motor it could have been bad. I'm learning about them but getting parts etc isn't easy as i was trying to order a fan belt, filters and for 2 weeks i kept calling about them. Finally they tell me i didn't have a credit card on file so they could not order the parts. 2 friggin IDIOT'S.

[michaelramirez]

Too many bells and whistles on those units, never liked them.