THERMISTOR Operation and Testing! Inverter and Mini Split Training!

Рет қаралды 109,686

Жыл бұрын

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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Пікірлер: 72

@acservicetechchannel Жыл бұрын

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 Жыл бұрын

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!

@jpenn727 Жыл бұрын

Again, another wonderful and elegantly explained testing process.

@stan-r Жыл бұрын

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 Жыл бұрын

Awesome!

@angusmac2037 Жыл бұрын

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

@youoweme5forreadingthisnam535 Жыл бұрын

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

@Russo2024Zir 3 күн бұрын

Outsource the CEO's job.

@johnnyriser8519 Жыл бұрын

Well explained. Thanks for sharing.

@stevencossaboon3237 Жыл бұрын

Good video Craig, Thank you

@zipperdingo6385 Жыл бұрын

Always a good value in every video, thanks Craig

@acservicetechchannel Жыл бұрын

Thanks so much

@michaelmaclachlan2152 Жыл бұрын

I learned a lot, thank you!

@tunaman2200 Жыл бұрын

Awesome video to supplement the book

@mitsos306ify Жыл бұрын

Thank you very much for doing this video!

@Barryd57 9 ай бұрын

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.

@vieuxacadian9455 Жыл бұрын

Another great video as always .

@vw_mods_4711 Жыл бұрын

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

@acservicetechchannel Жыл бұрын

Glad you like it!

@hongvietphan9806 Жыл бұрын

I learned a lot, thank you so much sir.

@rolanddejesus8685 Жыл бұрын

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

@deoranferguson5657 Жыл бұрын

I've always wanted this

@gxdughat1592 Жыл бұрын

Good information

@brianmcdermott2430 Жыл бұрын

Great info as always. Thank you, Craig.

@Russo2024Zir 3 күн бұрын

Outsource the CEO's job.

@hmongbrothersqaibthaibyeej Жыл бұрын

Good Info

@kaceywills8551 Жыл бұрын

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?

@michaeljamandron7820 5 ай бұрын

Thanks!

@thesilentonevictor Жыл бұрын

Good video

@user-im8rm4wl4k Жыл бұрын

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.???

@pariwara43 Жыл бұрын

I like so much book

@vieuxacadian9455 Жыл бұрын

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 .

@howardblasingame7961 7 ай бұрын

Wonderful tutorial. I'm buying your book.

@acservicetechchannel 7 ай бұрын

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

@rcinfla9017 10 ай бұрын

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.

@sachinchawla1368 Жыл бұрын

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

@watdasantos Ай бұрын

Sir is ther positive and negative wire to the aircon sensor

@samhaazratechnicalsupport Жыл бұрын

Very niece sir 🙏😘🇮🇳

@ABC-wz2db 4 ай бұрын

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

@cadamham 7 ай бұрын

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

@cc123456789 8 ай бұрын

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

@JuicedupGorilla 6 ай бұрын

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?

@safetyalways7788 7 ай бұрын

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 Жыл бұрын

Cuando van a tener el libro en español

@sylwinkassem2274 Ай бұрын

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.

@christiangv24 8 ай бұрын

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

@i.r.mrefrigeracion9985 Жыл бұрын

Esperando la versión en español del libro

@ishalljr Жыл бұрын

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

@jkbrown5496 Жыл бұрын

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.

@floridacoder 7 ай бұрын

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.

@lakehouse9305 9 ай бұрын

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

@gxdughat1592 Жыл бұрын

I am waiting this video india

@calholli Ай бұрын

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

@florinmangu371 8 ай бұрын

What is that metal clip called? at 2:19

@letimend05 Жыл бұрын

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 Жыл бұрын

Very useful, how to access E book please reply

@acservicetechchannel Жыл бұрын

Its on google play and apple books, thanks!

@stephwaylonwells3218 Жыл бұрын

👍

@whitesheatingairappliancer7101 Жыл бұрын

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 Жыл бұрын

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

@safetyalways7788 7 ай бұрын

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.