THERMISTOR Operation and Testing! Inverter and Mini Split Training!

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In this HVAC Training Video, I show HVAC THERMISTOR Types, Operation, and Troubleshooting on Inverter and Mini Split Systems. I Explain how to Test if a Thermistor is Bad and How to Check the Calibration! Supervision is needed by a licensed HVAC/R Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.
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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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#hvacr #hvacr #hvactrainingvideos #hvactraining #hvactraining101 #acservice #acservicetech #minisplit #thermistor #tubethermistor #beadthermistor #training #technician #operation #testing
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Опубликовано:

12 янв 2023

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Комментарии : 70

@acservicetechchannel Год назад

Mini Split Book on Our Website- www.acservicetech.com/mini-split-book Mini Split Book on Amazon- amzn.to/3ytHJSs Mini Split Book on TruTech Tools- www.trutechtools.com/BooksGuides Mini Split E-Book on Google- play.google.com/store/books/details?id=HN-iEAAAQBAJ Mini Split E-Book on Apple- books.apple.com/us/book/id6445178399

@HayabusaRydr Год назад

Found this while looking for a dissected cartridge thermistor on a 3D printer. Couldn't find anything until your video! Thank you for showing what was inside!

@youoweme5forreadingthisnam535 Год назад

Thanks for providing minisplit training. Not many companies offer it and not many techs on the resi side actually understand the ins and outs of inverter systems and diagnostic methods

@jpenn727 Год назад

Again, another wonderful and elegantly explained testing process.

@brianmcdermott2430 Год назад

Great info as always. Thank you, Craig.

@johnnyriser8519 Год назад

Well explained. Thanks for sharing.

@stan-r Год назад

Thank you so much for making this video! We have 140 Samsung mini splits at our resort and we have struggled with learning how to troubleshoot them. I purchased the new book that you recently published as well so I’m starting to feel more confident with troubleshooting. Thank you for all you do 😊

@acservicetechchannel Год назад

Awesome!

@zipperdingo6385 Год назад

Always a good value in every video, thanks Craig

@acservicetechchannel Год назад

Thanks so much

@tunaman2200 Год назад

Awesome video to supplement the book

@stevencossaboon3237 Год назад

Good video Craig, Thank you

@gxdughat1592 Год назад

Good information

@michaelmaclachlan2152 Год назад

I learned a lot, thank you!

@angusmac2037 Год назад

Such a great video. Easy to understand. Keep up the good work my man.

@deoranferguson5657 Год назад

I've always wanted this

@vw_mods_4711 Год назад

Got the e-book ❤ some very useful information for a new tech, thank you 🙏

@acservicetechchannel Год назад

Glad you like it!

@vieuxacadian9455 Год назад

Another great video as always .

@mitsos306ify Год назад

Thank you very much for doing this video!

@Barryd57 9 месяцев назад

This guy is the best on YT. Thx to his videos I learned how to install a mini split, fix my other AC, repair my car AC & even fix my refrigerator. It takes time to learn this and each time I complete something I take lots of notes and pictures so I remember what I did the next time something breaks.

@hongvietphan9806 Год назад

I learned a lot, thank you so much sir.

@rolanddejesus8685 Год назад

thank you very much sir for sharing...God bless.

@hmongbrothersqaibthaibyeej Год назад

Good Info

@howardblasingame7961 6 месяцев назад

Wonderful tutorial. I'm buying your book.

@acservicetechchannel 6 месяцев назад

Awesome and let me know what you think of it after reading!!

@thesilentonevictor Год назад

Good video

@kaceywills8551 Год назад

Hey Craig do you mind doing a video on how to make one of those test transformers you used in your electrical strip heating diagnosis video?

@pariwara43 Год назад

I like so much book

@michaeljamandron7820 5 месяцев назад

Thanks!

@vieuxacadian9455 Год назад

You should produce a video on the ill effects of exceeding mfr. tubing length distances . Some may encounter such in light commercial applications as I have .

@rcinfla9017 10 месяцев назад

Most commonly used thermistor is 10k ohms at 25 degs C and temp coefficient beta of ntc 3950, also known as type 2 thermistor. Good idea to check thermistors, they do not have great reliability. Mini-splits can have up to four or five of them.

@user-im8rm4wl4k Год назад

Very good explanation and thank you. Five thermistors in the split system exist, ok, but could you explain what each thermistor do? what tube thermistor in indoor unit do and what do bead thermistor.???

@samhaazratechnicalsupport Год назад

Very niece sir 🙏😘🇮🇳

@sachinchawla1368 Год назад

Hello sir, your videos are very informative, I request you to make this book and tools available online in India, thank you

@gxdughat1592 Год назад

I am waiting this video india

@JuicedupGorilla 5 месяцев назад

Hi, I have an old LG 12kbtu mini split system, got the led blinking error indicating thermistor of indoor unit is damaged. Can't find this part OEM, is it a good idea to just buy a generic one and solder the cable to the OEM connector? Any thoughts on this?

@stephwaylonwells3218 Год назад

👍

@whitesheatingairappliancer7101 Год назад

Whirlpool had us place them in ice water and ohm them out. It's nice we don't have to put them in ice water.

@HVACRTECH-83 Год назад

You don't necessarily have to put in ice water but it would be the most accurate test, when calibrating or checking accuracy of all test equipment really, unless of course the instrument can't get wet

@ishalljr Год назад

Thank you. Did you happen to compile the different manufacturers charts in your new book? Thanks.

@jkbrown5496 Год назад

That would likely be impossible as what is used is an engineering choice. Likely most will be 10k thermistors as the chart in the video shows (look at the resistance at 25C or 77F) for the range, but it might be a different "type" which has a different response profile or accuracy. But 10k Type 2 seems to be the most common for middle temps. 5k seems common for freezers so the resistance change a low temp is has enough range to be easily monitored. The TP is likely a 100k since that gives a decent range at higher temps.

@i.r.mrefrigeracion9985 Год назад

Esperando la versión en español del libro

@cc123456789 8 месяцев назад

The epoxy holds the two wires in the tube. Are the 2 wires connected together or do they need to touch the tube?

@watdasantos Месяц назад

Sir is ther positive and negative wire to the aircon sensor

@ABC-wz2db 3 месяца назад

How much more efficient is this unit with communicating vs 24v thermostat? If its been asked already ill find it in the comments. Thx

@floridacoder 6 месяцев назад

I have a Eco-Breeze KFR-35W/GX1b with no fault codes. Been working about 10 years. Fans all spin up. One day it just stopped blowing cold air or hot air in heat mode. Checked the high and low copper tubes and they are at ambient temperature. Doesn't appear that the compressor is doing anything. Given that I have no fault codes, what are the first things I should check? I have manifold kit, multimeter, and installed it myself years ago. So not afraid to figure things out.

@christiangv24 8 месяцев назад

Hi, in indoor we have 3 thermistor, all are 10koms ? Or only room is 10

@lakehouse9305 9 месяцев назад

Would very windy conditions make my unit run constantly in heat mode?

@cadamham 6 месяцев назад

Where can I buy meter leads that are small enough to fit into the thermistor wire harness? They are tiny

@calholli 24 дня назад

I can't seem to find a thermistor for my GE window unit aew24dth1 .. I guess it wants me to get the whole control board? Is this normal or is there some other way to buy these parts? My thermistor is working, but it's out of spec and won't go below 72 degrees, no matter what.. So then the unit never shuts off and it will just continue to run until it ices over. I can't find one online

@safetyalways7788 6 месяцев назад

please if the room has reached its desired temperature set by the remote control and the AC compresor doesn't shut off, which of these sensor is the culprit?

@ititrainingcenter2095 Год назад

Cuando van a tener el libro en español

@florinmangu371 7 месяцев назад

What is that metal clip called? at 2:19

@sylwinkassem2274 25 дней назад

Hi Will anyone know where the sensor be located on a ducted air conditioning? I have a code in regards to evap sensor and would like to located and test it.

@letimend05 Год назад

My fridgiare ac unit has a code A5 which they told me its the thermostat sensor but not to sure which on exactly. The unit works i just cant adjust the digital temperature it just stays on. Can some one help me on this

@shamsheralam8862 11 месяцев назад

Very useful, how to access E book please reply

@acservicetechchannel 11 месяцев назад

Its on google play and apple books, thanks!

@renecuevas4128 Месяц назад

77 room temp is equal to 10.00 ohms. But if room is 87 degrees will be 7.72 ohms if 67 room will be 12.72 and on and on.....

@user-cd1pg3ep9q Год назад

Pls where can I get the book!

@acservicetechchannel Год назад

You can find our books on acservicetech.com!

@josedelsonpadernal9019 Год назад

How can purchase that book and how much

@acservicetechchannel Год назад

available at www.acservicetech.com and www.amazon.com/shop/acservicetech thanks!

@safetyalways7788 6 месяцев назад

Please what's the role of room temperature sensor? My ac compressor only cycles on and off when temperature is set at 25 -30 degree Celsius but if the temperature is set between 18-24 degree Celsius, compressor continues to run even when the set temperature is reached . I want to know the sensor that's malfunctioning. @RajonRabidash so what's the role of room temperature sensor? My ac compressor only cycles on and off when temperature is set at 25 -30 degree Celsius but if the temperature is set between 18-24 degree Celsius, compressor continues to run even when the set temperature is reached . I want to know the sensor that's malfunctioning.