WHY DOES OUR AC ALWAYS STOP WORKING

Well if the exhaust fan's were on the other side of the roof we wouldn't have this problem

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[ChicagoHVAC]

As I am typing up my comment about don’t add refrigerant because you have negative approach (liquid temp is below OA temp) because that is not possible so either the coil is still wet or you have a drier plugged up, you pan over and show coil is still wet and let everyone know not adding yet until coil is dry.
You’re a Pro Chris. Great video.

[Freonleon]

The blue coating is more than likely a “coastal coating” help to prevent salt water from destroying the coil in 3 -5 years

[liamtheinventor]

Hey Chris, I really enjoyed your videos and has encouraged me to make my own. I’m a 16 year old and I will be taking my cooling class this fall. I will be showing up with your shirts. I have learned a lot and really enjoy HVAC, I can’t wait to soon be in the field.

[gordonrockafellow]

Chris I have put 18 " extensions on the exhaust fan discharge and it sends the hot greasy air strait up and away from the coil. It makes it more difficult to service the fan but i would rather that than to try to clean greasy coils. By the way I have found that HD Calgon is excellent for grease, kill the condenser fan motors run the compressor about 30 seconds and spray it on.

[Jackhvac_R]

You are extremely intelligent and articulate, trade is blessed to have you. We are also all grateful for our restaurants/business owners who don’t necessarily have enough money to replace their elderly equipment. Makes us better technicians and people at the end of the day.

[DavidNull]

Chris, about the hot water at that place: Almost always restaurants use commercial water heaters, Unlike home water heaters commercial water heaters are designed to deliver **continuous** hot water, the health departments require them, the health inspectors don't want any restaurant to run out of hot water, even for a few minutes'. Ask a seasoned, knowledgable restaurant manager at the next one you visit. Commercial water heaters are Expensive, and they consume a truck load of natural gas, 300K BTU input isn't uncommon.

[volvo]

Wow, the blue made the before and after coil clean look so obvious.

Initially i thought the blue was applied as some hack and was very uneven, but it was all dirt and grease covering it.

[zidanek]

04:30 Just once I would like to see an example of a microchannel coil bubble party 😅
Edit: 05:42 I guess it would be like that but floating upwards instead of being blasted against the chassis wall

[Thedeville]

Always good to have a new video before you turn in for the night

[dbjrx]

The blue fin or the blue-coated condenser fins enhance the durability of an AC. It allows the refrigerant to transfer better heat and increases the cooling capacity of the Air Conditioner. This has the epoxy coating on the coils which protects them from water droplets, accumulation of salt, and deposition of acid.

[Mike-wxki]

Maybe depends on situation, but could of ran heat during the coil cleaning since building wasn't open. But definitely harder to do with RTUs and commercial in general, unfortunately.
One thing I miss about residential lol.

[kens.]

Great video, Chris! You’re thorough as Ever. Thanks! 👍🙏

[nepocrates]

Lol when I saw the thumbnail on my phone I thought it was some sort of star war walker. So color me surprise when I watch this video😂😂😂

[carloshilarionvazquezaranda]

Buena noche Chris, nuevamente muchísimas gracias por compartir, enseñar y dar muy buenos consejos para trabajar con responsabilidad y entusiasmo, pues así tendremos la plena seguridad de que se están haciendo bien los trabajos.
Saludos y abrazos a todo tú equipo y nuevamente muchas gracias.
Desde Coacalco estado de México.

[standardstyle]

Chris is no fun, he doesn't like bubble parties!

[thephantom]

I always wondered how different it is from using the venom stuff vs dawn dish soap. Maybe you should do a side by side comparison one day?

[MrNick]

Would an automotive foaming degreaser be an alternative for the grease build up or would that still be to aggressive?

[Joshua.Sookoor]

Hmm, putting an ehaust fan right by the unit could cause the greese to be sucked it the coils, that was definitely a bad design. Be careful cleaning those blue fin coils because the coil cleaner could eat away the coating that protects the coil, from the salt air if youre by the ocean! Great video!

[joeyyeazel]

I've personally had good luck with my battery powered pressure washer for micro coils. The pressure isn't enough to hurt anything and it really blasts the crap out. Use it on kitchen reach-ins as well, the grease just disappears after soaking with cleaner.

[gregmercil]

I recently learned that those metal mesh filters are called mist eliminators, their function is supposedly to cut down on moisture coming in through the economizer.