Disgusting mobile home air conditioner evaporator coil replacement with Goodman. Step by Step guide

In this video I walk you through how to replace the evaporator coil on a mobile home down flow air handler. The process would have been alot easier had I been able to use the compressor to pump all the freon into the condenser, but that wasn't possible for this job.
I hope you found this video helpful and informative! If so, feel free to give it a like, and check us out on patreon.com using this link: / diyhvacguy where you can make a contribution to keeping these videos coming! Also, below you will find links to all the products used in this video. These links are amazon affiliate links and they also help me out a little when you purchase something through one of these links. Cheers all!
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⚠️ Disclaimer:
This video is for educational purposes. Any and all HVAC repair work is done at your own risk. The DIY HVAC Guy channel is not responsible for any possible damages or injuries caused by the use or misuse of the provided information.
Most links provided are affiliate links through amazon and they give me a small commission when used. Thank you all for your support! Cheers

[@emilywalton4105]

Wish I had an an instructor like you during my apprenticeship. I was not trained to do things properly like you do (flowing with Nitrogen, using a micron guage, adding into the high side as a liquid, etc.), now I'm a journeyman and I'm just starting to learn and only because of online videos.

[@michaelmiller5382]

You do a great job of describing the whole process

[@number1pappy]

Seriously! Thank you so much for your videos! Your a godsend!

[@annetteseabrook9764]

Very informative, this is exactly what mines looks like and I am having to replace it

[@trucle1859]

I loved all your videos, Dave. Keep these videos coming buddy. Thanks

[@diyhvacguy]

Thanks man!!

[@Honestandtruth]

​@@diyhvacguy......Oh come on,.....😅😂 don't let grass hopper Scare you

[@IvanHVAC]

Liked the video from the beginning, because I know you goin to put up valuble info... thanks for sharing your knowledge.. Houston Tx.

[@diyhvacguy]

Thanks so much for the support! Cheers

[@pitobansheePR]

Great video!! Thanks

[@franciscotejeda1461]

Excellent video n have a good day !

[@manuelbustillos3925]

Manufactured home units don't have service valves, because all of the components in the system are "pre-charged" which makes it easy for the mobile home installers to connect the system during installation without needing to adjust the charge or pull a vacuum. additionally, no torch is needed because of the quick connect style fittings on both ends. One more point even if that unit had service valves you can only "trap" what is in the condenser, you can't perform a pump-down on a microchannel. One additional point, there are coils on the market from ADP, ALLSTYLE & Mortex that are specifically designed to fit those mobile home air handles and gas furnaces

[@emilywalton4105]

I recommend Harbor Freight tube bender, Doyle brand.

[@DidierBan]

👍👍👍👍👍👍👍👍 Really good video .

[@love1another]

Can’t wait to see pressures after releasing 410 back in system

[@RichB0330]

Nice work boots.

[@ICExMikey]

That coil is sparkling clean compared to my apartments Black n loaded with hair. Having lung issues.

[@TheBushey]

Nice

[@tellitallnow3914]

Subbed, brother, thanks for creating this channel. The information your sharing and the way you go about creating your videos , my MOMMA could go rip out and replace OR maintenance any AC unit!!! 😂😂 👍👍👍

[@dand3975]

I have brazed with oxygen and acetylene on steel. I Did not understand the turbo torch setup with one tank, acetylene or mapp gas? How did you have enough heat to braze? Was the nitrogen flowing in side the copper pipe to replace oxygen ? Or did the nitrogen act as a shielding gas? Enjoyed the video, here to learn.

[@rpg8744]

Love your videos! Where would you recommend a DIY'er purchase the evaporator coil or other parts?

[@rostamk8635]

Great video!! Keep up the good job Dave!! I noticed that you did not put any sealant below the base of new evap coil when you put it in the housing. Are not we supposed to put some? 🙏👍

[@diyhvacguy]

You could if you wanted to but the air (if any) that goes under the coil is very minimal.

[@diyhvacguy]

And thanks for the support!

[@frankmontez6853]

I’m not getting much from at least one vent or more . Room stays warm. Besides chewed through damaged air ducts what should I look for ? Bad dampers that are in the ceiling? I tried them switching to open / closed but almost no difference in air coming out

[@hg2.]

Min 2:52 Could you have purged the yellow hose at the recovery tank too?

[@hg2.]

Any chance we could get some "intro" on this job? Specifically, what led up to the homeowner's needing an new coil? Was it leaking? Was there a chance of braze-fixing the leaks? Some specs on the system and the evaporator? (Aluminum is better for leaks than copper? Interesting -- I always thought people went to aluminum just because it was cheaper.)

[@Lord_Joseph17]

I live the explanations but on this particular DIY... most DIY'ers have brazing torches... but for the rest of the equipment: it would cost a fortune unless I don't know something... Si a job like this to replace the coil e-vap how much did this job cost in particular please? and on another note, since my e-vap coil froze without having the dirty filter, clogged airways or anything of that sort, I'm pretty sure I have no more freeon in the system. Can you show a cheap way to know if the is freeon left? and what if we buy the E-vap replacement, replace it, Sauder the lines ready for the HVAC tech to do the rest? thanks in advance for the great videos, clear voice, great camera angles and great motivational projects 🥂

[@diyhvacguy]

This job to replace the Evap coil is probably about 1000-1500 including the new coil. It’s very common for the Evap coil to freeze up when it’s low on refrigerant. So you might save some money and just get it topped off until you can replace the whole system. I’ll definitely be doing some videos on how to add refrigerant as we get into some warmer months but right now it’s all about the heat! Cheers

[@KurtMiranda]

Did you place the filter(s) on the coils themselves or the door panel? My MH (recently bought) didn't have any filters at the furnace and we have down flow coils without cabinet and I am attempting to buy the correct filters before AC season. Thanks

[@JeremyRoche]

Hey can you explain why you chose a coil with a piston instead of a TXV? Thank you

[@rubenguzman6144]

Do you think it would be safer if used less pressure to test incase you had less standing pressure in the condenser and bad valves that would allow nitrogen go into the condenser and then would have nitrogen in your refrigerant

[@lisarobertson4485]

If you can’t afford to buy a new coil of fins can you repair missing Finn’s by soldering or welding new fins on there?

[@GillyGomez]

I'm looking to instal a mobile home evaporator coil in a regular residential due to the size of the plenum . Would you say that there's a difference between the mobile ones and residential other than the size? I'm looking to get a 3 ton

[@mikehenry7517]

Can you pressure test with regular compressed air?

[@aamirghanchi9487]

On the old airframe, is it normal to place the air filter like this directly on the evaporator?

[@xxnomanxx]

nice vid , wow they new a new unit all rust i bet they barely change filters, and did you installed king valves?

[@diyhvacguy]

I did not. I just recovered the freon into a tank, did the repair, then recharged the system. Yea the old coil was pretty nasty!

[@hg2.]

Min 4:00 and 27:00 Could you add a pencil-and-paper diagram at this point to show what's-going-where? (It would make it easier to keep these hose connections and purgings straight in our head. ) Thanks for making. [PS: for a good example of video segues to pencil-and-paper, see Gendron HVAC-R.] [PPS: great use of headcam!]

[@nitetimebeagle]

I don’t see air filters on the coils. Is there one on the intake grate?

[@diyhvacguy]

Correct

[@johnwagner846]

Did I miss something regarding the "burping" of the lines? Didn't you "burp" the wrong end, and you left air in one of the yellow hoses two times?

[@TheDemonMadeMe]

Where do you buy your parts from (Evap Coil)

[@johnisraelhvac2019]

You can’t pump that condenser down anyway. It’s micro channel it won’t hold the charge

[@diyhvacguy]

Interesting.. how you doin bro? Thanks for the comment.

[@johnisraelhvac2019]

@@diyhvacguy doing well thank you

[@brianhaney3613]

What size turbo torch tip did you use

[@diyhvacguy]

I believe it was an A-14

[@southeasternservices1683]

I might be overlooking it, but what company makes the aluminum evaporator coils used in mobile homes?

[@rubenguzman6144]

Do you not like using mobile home coil aspen or your other mobile home coil or you trying to increase efficiency of the outdoor unit by using bigger coil just curious

[@matthewnelson730]

Should use leak detector, aka bubbles to test for leaks also let evacuation stand to see if it raises above a reasonable level and also should always add refrigerant in a liquid form. When the system is off and breaking vacuum add to liquid side of system when system is operating add to suction side. Also should find target superheat not just set to 10 degrees.

[@hg2.]

Did this have a TXV or piston? (re: setting for superheat (min 28:00) -- I think that means "piston") Sorry -- question answered at min 29:00.

[@gainesinlife]

I hope you know this guy, you over there flip flopping it up. Doesn't seem too professional to have your toes out there!! LOL

[@diyhvacguy]

It was at my grandpas house so I wasn’t worried about being all professional haha

[@miguelteran-raful2718]

Sir can you give me your honest expert opinion!? When is it necessary to replace the entire HVAC System? My evaporator coil was rusted and leaking but the HVAC guys were pushing into replacing the entire system. My common sense was telling to just replace the evaporator and keep it moving. Just like a car, you dont buy a new car when something breaks down!

[@mikemalone6103]

I noted at about 19minutes your turbo torch tip was like an 11 or a 14… way too big. Also the gas pressure wasn’t open or the tank wasn’t full because it’s whistling and you’re burning the tip, it’s turning yellow hot at the tip. You may need to clean the tip…. Drop down to a 5.

[@love1another]

You didn’t purge your hose at recovery tank. 410 is garbage now:(

[@hg2.]

Min 16:00 Could you expand on what happens here? This is a nuance of brazing, but we can't see what you're referring to.

[@summerforever6736]

Dave where are you located?

[@diyhvacguy]

Utah

[@summerforever6736]

@@diyhvacguy ok Why are you using a hard start instead of soft start? Thanks

[@blackericdenice]

7:20 Put on shoes when you are working.

[@rolandoroquefl2836]

Good men ac are so bad have to replace the AC Handler condenser every two and a half years

[@MrRupus2020]

Nice OSHA approved flip flops 😂😂😅

[@diyhvacguy]

🤣🤣🤣 it was at my grandpas house lol

[@rumplestiltskin5036]

Hello, Dave. I'm a relatively new subscriber and am interested in learning how to clean evaporator coils inside my manufactured home. My unit is about 3 years old, and as you already know, there's not a lot of space to work with. What would be the best approach? Any insight you can provide would be greatly appreciated. Thank you, Sir.

[@diyhvacguy]

Since your furnace is a down flow, it would be real easy to clean, no debri will be ok the bottom of that coil, only the top. So get the big debri out like I did in my last video with a metal coil comb, then spray it down with evaporator coil cleaner and you’ll be golden 👍🏼

[@rumplestiltskin5036]

@@diyhvacguy Thank you, Dave. I appreciate you taking the time to respond 👍