How to Remove a Mini Split Fan Wheel!

In this HVAC Training Video, Brandon shows how to remove a cross-flow fan wheel from several different mini split indoor wall mounted units. He discusses why a fan wheel should be removed and specifically covers fan removal from a Fujitsu (Model: ASUG12LMAS), Mitsubishi (Model: MSZ-GL12NA), Daikin (Model: FTX12AXVJU), and Cooper & Hunter (Model: CH-12MASTWM-230VI) indoor unit. Keep in mind every manufacture and every model is different and these examples are intended to teach general principles and not specifics. Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.
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Timecodes
0:00 - Getting Started
0:24 - Why the Blower Fan Wheel Needs to be Removed
1:53 - Removing the Blower Wheel for Cleaning on a Fujitsu Mini Split Indoor Unit (Model: ASUG12LMAS)
6:41 - Reinstalling the Blower Wheel on a Fujitsu Mini Split Indoor Unit
10:10 - Removing the Blower Wheel for Cleaning on a Mitsubishi Mini Split Indoor Unit (Model: MSZ-GL12NA)
12:42 - Reinstalling the Blower Wheel on a Mitsubishi Mini Split Indoor Unit
14:55 - Removing the Blower Wheel for Cleaning on a Daikin Mini Split Indoor Unit (Model: FTX12AXVJU)
17:04 - Reinstalling the Blower Wheel on a Daikin Mini Split Indoor Unit
19:30 - Removing the Blower Wheel for Cleaning on a Cooper & Hunter Mini Split Indoor Unit (Model: CH-12MASTWM-230VI)
20:32 - Removing the Blower Wheel from units Where the Set Screw is Hidden
20:56 - Learn More
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⚠️ Disclaimer:
Information in this video is intended for educational purposes only. Any work related to the topics in this video should be performed by licensed technicians or by apprentices under the supervision of licensed technicians. AC Service Tech LLC is not responsible for any possible damages or injuries caused by the use or misuse of any information provided.
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#minisplit #fanmotor #fanwheel #hvac #hvacr #hvactrainingvideos #hvactech #technician #fan #trainingvideo
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[@povoljan13]

As a new hvac tech, I really appreciate videos like these. Thank you

[@btrained8760]

Great job, Brandon! Very informative!!

[@CommercialGasEngineerVideos]

Thanks for the video, nice steady camera too

[@luisarriaga3545]

Excellent video...thanks

[@tielkgate]

Thank You. Great video.

[@jasonshearer1870]

Nice job!

[@raulgarcia528]

Waooo Creo que El Daikin fue El mas facil para acceder. Gracias por compartir

[@thepatrioticmistersnevets9850]

These infernal units are too easy to break. One of the worst aspects is when the customer watches, and when they see how flimsy the parts are, they get buyer's remorse.

[@JohnSchwing]

😊😊😊

[@ashveersanilal1699]

Your aircons are very easy to work with

[@samhaazratechnicalsupport]

Very niece sir ❤

[@Youngsuperman17]

Nice

[@u2tipsy]

Great video! The music is a little "screwy" though. 😂

[@Rhahdhdn]

Easy enough when it’s at eye level and nothing is in the way…

[@andysantos8286]

Exactly!

[@Chainsaw600]

Yep. Just popping the top off when the installer did not maintain space above the unit is my favorite.

[@RoastedHVAC]

Settle down... It's good information. We all know the challenges.

[@richiegarcia-lopez4268]

Man be grateful for channels like this, if you can’t attend training then this is your next bet along with webinars. Something is better than nothing

[@paulbluepoint1472]

Bib and coil jet

[@YTsux24-7]

The older VW Bugs could be disassembled with a flat head screw driver. This is a prime example of why I dislike mini-splits. There are too many plastic parts that can be cracked or broken. Here in Colorado plastics become brittle within a few years of use.

[@chrisdeanndavison3626]

I agree. I'm always afraid I'm going to break something unintentionally when I work on them.

[@joansparky4439]

The plastic on my Fujitsu units is still OK after 10 years.. had them apart 2-3 times (2 with wheel+motor out) for cleaning. What destroys those devices is the corrosion+mold in the evaporator areas that can't be cleaned, even with the wheel out. To be able to clean there and do some corrosion prevention/treatment the evaporator needs to come out, which requires HVAC tools+knowledge (and licenses).

[@YTsux24-7]

@joansparky4439 as I mentioned, the dry climate here in Colorado Springs at 6200+ feet in elevation makes plastics brittle long term. I'm sure lower elevations with higher humidity keeps plastic resilient. What tools and licenses are you assuming I don't have?

[@joansparky4439]

​ @ YTsux24-7 here in AUS one requires HVAC licenses to be able to work with refrigerants (R136A, etc.) and unhooking the indoor unit (i.e. the evaporator) from the cycle requires to collect the refrigerant in the outdoor unit, and later on using a vacuum pump before letting the refrigerant back into the whole cycle. YMMV? I'm on 750m ASL, 17 deg south, so not quite as high as avg CO but also not SL. We also got plastics/rubber that goes bad, but the Fuji-AC plastic seems pretty tough.

[@denverbraughler3948]

@@joansparky4439 : Recovering the small amount of refrigerant, opening the evaporator coil to atmosphere, removing, cleaning, or replacing it, vacuuming it, and restoring the charge, would cause wear and tear, lose some refrigerant, and introduce contaminants. It’s impractical even for annual cleanings, not to mention the labor cost. Does the manufacturer recommend this?

[@zyrtec455]

I suggest that their should have more models that can’t remove water tray such as, Mr.Cool, Pioneer etc. that manufactured from Chinese Factories.

[@ashveersanilal1699]

Can you please post a video doing a gold air 12000btu blower wheel removal and drain pan removal. Cos this aircon is difficult to remove. Blower wheel locked on the shaft motor and no screw to remove to loosen blower wheel out.

[@paulsilver1625]

Try doing this on a unit 10 years old. Brittle as hell. Rusted corroded and needs to be replaced. Spend hours doing the clean. Only for it not to go back together. Seriously easy on a brand new air handler.

[@joansparky4439]

Yep, corrosion and designed to not to "really" be maintainable is limiting the lifespan on any of these.

[@BernWag]

Have these gotten easier over the last couple of years? My 2 ton DuctlessAire is 5 years old and a huge pain ITA to clean the blower wheel.

[@LeeJooLeong]

Hi, Mine is multisplit Mitsubishi Starmex 2018). I unscrew and removed the set screw but the blower wheel is still stuck to the motor and I am unable to pull it out. I have used screw driver as a crowbar to try force it out but it seems stuck to the motor. (I have already loosen the cooling coil). Any suggestions? Thanks.

[@salvatoregiovanni8967]

I have a 36k Gree mini split, and my blower fan wheel is a two piece design due to the indoor unit being so long. All the videos I see show one piece wheels. I’m trying to figure out how to replace my right hand fan (closest to blower motor). Do you know how?

[@jerronbigbee9545]

What do you recommend for cleaning evap coil? Bibb kit and water or no rinse coil cleaner?

[@joansparky4439]

mold+corrosion doesn't go away with "no rinse cleaner" and even pressure washing isn't going to do a lasting job.. ideally the evaporator coils should be taken outside for a proper clean, but those systems are not designed for that.

[@ashveersanilal1699]

Hi its very difficult to remove the blower wheel on a gold air 12000btu indoor unit non inverter unit. The drain pan has no clips to drop it down and blower wheel has no screw attached to it.

[@jmuir6097]

HI Brandon what about a lennox

[@chasemanhart]

I have a unit full of mini splits, all different models. Absolutely despise them. Any advice for cooling interior units with no windows?

[@pedrojuarez5834]

I must confess that I did not clean the mini split blower wheel now I'll do it right the next time

[@rehannaseemsiddiqui1970]

hello brother I think damage inside cooling coil frence

[@azzeddine4135]

سلام عليكم انا احد التابعين للقناة وارجو ان تكون هناك ترجمة للعربية مصاحبة للفيديو thank you

[@brichusi]

Mine is in my RV right above my bed I was wondering why I have been feeling well. I looked into the fan area, very dirty wet. 😂😢

[@Cain-x]

This is a dirty secret that manufacturers will never talk about or just glance over - deep cleaning these split systems annually, maybe twice a year if in very dusty and humid regions. Is there some other maintenance plan that helps keep the blowers from collecting dirt/mold and without doing a full dismantle?

[@christian81846]

Hey what happened to Craig

[@deanriver9388]

The older Fujitsu heads are an absolute nightmare to take apart most of the pieces break

[@freonpeon472]

Bought a SpeedClean CoilJet Coil Cleaner battery power washer a few years back and will never go back. Their cleaning solution does an amazing job. It's far faster than doing all this unnecessary labor saving our customer money not to mention potential problems demoing/reassembling unit.

[@joansparky4439]

u are not going to clean the mold out of the unit properly when relying on spraying fluids into the unit blindly.. LOL

[@byronlentz4825]

I have a couple of Friedrich units. They don’t seem to be anything like this. I have no dealer support, so I’m on my own.

[@smyejhamza]

The set screw is not in the middle on the blower wheel, it is on the shaft of the motor which is at the right of the unit. You will.have a screw right beside a beige insulator where the copper diffuser is then there is one behind de electrical compartment ( at the left of the compartment but on the right of the unit. Next wiggle the black drain pan downward and your set screw is under the yellow plastic cover protecting the motor. Hope this help

[@andysantos8286]

Damn! Was this evaporator buried?

[@brockbeckstedt6483]

What a nightmare this can take some time and nobody wants t I pay hours on cleaning and still take a chance on breaking the plastics they sure didn't make it simple to clean therefore cleaning won't be done well leaving the end user with half ass cleaning.

[@joansparky4439]

mold+corrosion within the evaporator fins/coils gives those things a lifespan of 10-15 years (if run frequently) and due to how the system is being designed those areas can't be cleaned properly anyway as those parts have to stay in place..

[@paulsilver1625]

Not a gasket. Omg. It’s a poor excuse of a bearing.

[@joansparky4439]

quiet-running = rubber with ceramic-sleeve-bearing is the BEST choice

[@billevans3262]

From15

[@letstravelsandadventures8326]

I need to know how I can cancel my Patreon subscription to your channel.

[@acservicetechchannel]

Hello! Reach out to our email, [e-mail], with your patreon information and we will help you cancel your subscription!

[@dylanvilkofsky8180]

Gotta mention there's older dumber models that have no set screw and need to remove the motor with the wheel

[@paulsilver1625]

Why don’t the manufacturers make it easier. Profit I guess

[@mackenziegray2090]

Once you do it couple times is pretty easy.

[@thepatrioticmistersnevets9850]

Job security.

[@joansparky4439]

the refrigerant cycle can't be disconnected on any of those, so the evaporator has to stay in place - corrosion+mold in them destroys the unit depending on usage.. mine are running frequently and even after cleaning them from the inside (wheel out) every 2-3 years are going to need to be replaced after 15 years tops. Plastic is still good though (got Fujitsu units) - Mitsubishi seems to be easier to maintain IMHO.

[@klabkebash]

Or.. Just use the cleaning kit with plastic bag to drain into the bucket and use a moderate pressure washer with cleaning solution. No breaking of plastic clips and messing around for hours with 1 blower trying to put the blower wheel securely on the motor. 😎💩

[@denverbraughler3948]

These clearly aren’t designed to be cleaned. I’ll call it bad engineering.

[@joansparky4439]

to properly clean the evaporators (going outside with them) the refrigerant cycle would need to be disconnected (HVAC knowledge + tools needed) or the system would need a glycol based (2nd) cycle to carry the heat/cold from outdoor to indoor with pumps and leakage potential (to be able to disconnect them easily).

[@denverbraughler3948]

@@joansparky4439: Or the coil could be left in place, sprayed with cleaning foam, and rinsed into the condensation drain. You know, like systems with better engineering that can be cleaned without major disassembly.

[@joansparky4439]

​ @ denverbraughler3948 What systems would that be please? I'have to replace mine in the next 5 years, so would be good to have an alternative - if it exists?

[@denverbraughler3948]

@@joansparky4439 : For a mini split, I don’t know. Most horizontal package and split units can be installed to permit the evaporator coil to be easily washed without major disassembly of the air handler. Ease of maintenance, especially routine cleaning, should be an engineering specification.

[@c21meister]

Mini splits are annoying

[@anthonygasparini1734]

The only time I have seen wall units this dirty is when the rest of the house wasn't kept clean! A dirty environment leads to a dirty wall unit.

[@joansparky4439]

bull.. just run them in a tropical climate and ANY will look like that within 24 months top - no matter how clean the house is.

[@ryanmoore2779]

Not Fujitsu 😂. Nobody likes the F word