This video has been the most thorough in explaining the sequence of operation for the defrost cycle. Keep up the good work.

when you get old and cant get do those things anymore, definitely you'll be a very very good teacher. you explain a lot way better. congrats.

I have a deep respect for a person like you, because of you sharing your knowledge and having the talent to articulate the subject.

Great explanation. You should consider going in to teaching after you get tired of the daily grind of service work.

It's one of the best videos I've ever seen on defrost clocks. You're an awesome teacher, mate!

Very few guys on KZfaq are good at Explaining thoroughly what is going on in a System,plenty can fix and solve the issue but the actual Explaining of all the Functions and Sequence of Operation of whatever they are working on is True Teaching. It is very rare to find a Super Tech and Teacher in One.Great Job coming from a 63 yr old Tech still working and Learning every single day.

I've been doing residential work for two years and just barely got into refrigeration. The way you explain things makes so much sense to me. Whenever I have a problem or I'm stuck at a job, I always come back and watch your videos. Thank you so much for these videos and keep them coming.

You can tell how competent someone is at their job by the confidence in their speaking tone and you sir sound really confident!!! thumbs up!

Chris, your explanation of the reason why they have defrost clocks reminded me of when I we a kid and used to unload the delivery truck at McDonald's. The air in the frozen section was so cold that on hot summer days, it would actually snow in front of the trailer door.

Thank you mate. You are a star 🌟. I appreciate people like you who take their time and share the knowledge. Respect 🇬🇧

currently doing a cooler project, and this is what I have been looking for. Thank you for taking your time

by far the BEST explaination for the sequence of operation on a deep freezer cooler sir! BRAVO!

Bro I never had a mentor before but you are one of best services tech and Refrigeration business man hones. That I see on KZfaq and the field just give thumbs up. I learnt things to do to cut back my call backs.

I appreciate this video was looking for a time clock refresher video good job bro

This is the best walk in freezer explanation video

Very good and simple explanation. Thanks.

Great video, took a 2-3 year break and fixing to start up doing repair work again

I love your vids man, you explain everything very thoroughly and well. As someone whos interest in getting into HVAC your videos are very useful and informative.

I have let the smoke out of a lot of new parts because of not fully diagnosing the root of the problem. Great video not a HVAC guy but I am a systems guy and can really appreciate the process.

Freakin love u man! TYVM I can't express how much I appreciate u taking the time to make these videos. God bless u and ur family

It's great that you give a lot of information. I think a lot of us are here to learn, so your format is perfect. If I'm not learning something, I usually skip through videos. I actually skipped back a few times to make sure I understood. Subbed also.

Thank you brother!!!!! Your video helped more than you know! I've been fighting with a walk-in freezer for the last week I was about to give up. I thank you for the video

One of your best videos yet! Well presented & even a refrigeration novice like me was able to clearly understand all the concepts concerning the time clock & its operation. A very valuable training tool indeed!

New to refrigeration and this video saved me today. Wow. Just did everything you did and boom, problem solved. Thanks for making these.

Howdy there Sir! Thank you much for recalling on basics as my shop school teacher said "always go to basics"including the security ID procedure(hajaha) Greetings from Cancun México blessings Vaya con Dios amigo

Love your videos! My son does this and he now has been at U of Iowa Hospitals and clinics ; but he did what you do years ago! Thank you for your time doing these videos!

Thank you so much about you explained the defrost timer work.

Excellent teaching method very good approach and fantastic analogy please continue to help you are a gentleman

Thank you for your videos. I appreciate them. I hope god blesses you and your family this year.

Good advice on diagnosis. Very helpful for techs.

I like how you took your time and did a systematic check of the electrical circuits. Checking for resistance in the terminal wires of the defrost clock, with the power off and then turning the switch gear disconnect back on, and pushing the compressor contactor in that power on the compressor and condenser fan. Basically the compressor and fan are wired in a parallel circuit, by doing this the defrost clock is faulty . You check the condenser fan motor, Commerical Ice boxes have a small defrost clock in them and electric heaters mounted inside the Evaporator coil, I used to work on those units, and to check to see if the unit went into defrost, I would turn the defrost clock wise, and hear a click the compressor and both evaporator and condenser fans will shut off and the unit will go into defrost, leers units and others did not have a fan limited switch and defrost limited switch or a electric heat safe limited switch, but it was easy to service and work on too.

Thank you for your time and specially your knowledge ! I could never eliminate those drips on the ceiling of walking cooler or freezer ! Of course no one explained it to me !! Now I know !!! Happy Easter 2019

Your the best. I always learn something from your videos.

Stumbled upon your channel and really like how thorough you are with your service calls and explaining how things work and the process you go through. I’m new to the refrigeration part of the trade, got put on call this year. So I’m just trying to learn whatever I can. Glad I found your channel.

Thank you, my friend. you remind me of myself. I've been doing this a long time. The video is in great detail and was very helpful. Thats is a great talent you have there. Thanks again

Watching this video literally helped me finally connect the dots in refrigeration. At the time clock where your explaining 3 is defrost 4 is refrigeration 1 n 2 are your high voltage line and N your neutral and X is defrost termination than explaining the theory behind the limit switches into a light switch concept was very practical. Thank you.

you are an absolute excellent proctor explaining !!! the best ive seen on you tube. thanks from one tech to another for being so entailed and informational !!!!!

Your videos are a godsend. I do facility maintenance and I'm the only guy on my team with HVAC training, but I never learned about medium/low temp stuff. We have about 7-8 walk-ins. The first time I looked at one of the condensing units, I didn't even know what a low pressure control was or did.

Really good video details than everyone,finally i understand how the defrost timer works thank you

A huge thank you for making the video and sharing - the most thorough and best explained fault finding I have seen.

Another great video! Between you and Nor Cal Dave Im learning tons!!!! Cheers

What an awesomely explained video. Thanks for taking your time to make these videos bro!!

Great explanation. Thanks for the detail. I'm going into my third year in the HVACR industry. The company I work for does similar work as to yours and its good to see someone willing to share. Thanks for the content. Looking forward to future videos.

Your videos are awesome! You explain everything so clearly and step by step. I wish most journeymen had this approach.

Very good teacher. Thanks a lot for helping out the new guys.

Thanks Chris for the little ref class that was great explanation GOD bless you and your family too.🙏🙏

I am Brazilian I work in the refrigeration area I am a refrigeration technical I work in the area for over 15 years and I really like your video s

Cris like always, very instructive videos, thank you God bless you and your family, Merry Christmas 🎄.

The best teacher and an excellent technician, thanks man. I can't hold the multitester probes on one hand.

Thanks, i have been dying to learn about defrost time operation and this helps alot. P.S, i will never cut and destroy my old drivers license. Great tip my HVAC Bro.

Thank you for helping me understand much better the sequence of operations.

Very thorough explained video and the safety tip at 08:15 - extremely important.

Thanks for the gems of wisdom. You are a great teacher & it comes naturally! I’m guessing you had a great mentor/teacher who gave you the gift that keeps giving....knowledge. Keep em coming!

They will sing songs about you one day my good sir. Love your videos! I especially appreciate this one because for whatever reason, this doesn’t stick lol. I hope that changes now. Thank you!

Best explanation I’ve seen hands down.

Thank you very much. Your videos are gold.

I watch your videos all the time, watching you has made me a better tech. Much Blessings Brother

Good Job. Thank you for all the good information in the video.

GREAT VIDEO. Especially good for those of us who worked on refrigeration and stopped like 15 years back. Now scrambling for a quick refreshing due to new service contract that includes light refrigeration. I’m going to watch this one several times this week or till I feel comfortable again. Thank you for posting this video ✌🏽

I'm new to the commercial side. Coming from the residential side these videos are helping.

Thank you so much man I’m a 19 year old service tech for refrigeration company in sf and watching your vids have helped me become a killer tech

Thank you for a great video, learned a lot. I agree with some of the other comments here. you would be a great instructor at a technical school. Thanks again

Finally I found these video....now i understand how to work that timer...👍👍👍❤❤❤❤...thanks a lot .....

This video was shown today in class for HVAC, it was very clear and informative 👏🏽

I love your great explanation that is quite detail. It helps me a lot. Thanks guy!

Thank you for the thorough, simple explanation. I understand now.

My work is more Gas Heat AC service, so I like to watch areas that I do not see a lot of. And I have to say your video with explanation is very very good. Im now subscribed. Cheers!!

Excellent video. Worked on a walk in today and was puzzled. Not anymore. Keep up the good work.

This is a great video for me to learn from. I really appreciate your videos as I am learning a great deal of knowledge. You are a great teacher. I look forward to watching more of your videos. Thanks.

Very professional presentation of the walk in Freezer sequence. Good job.. thank you

Nest explanation on that defrost I've seen.

Excellent explanation, I really appreciate this type of educational videos.

One of the best logical explanation of defrost timer . Thanks to make it so easy.

Hi sir I'm bert from Philippines is nice explanation about defrost timer I'm very enterested thanks for sharing your talents God bless you always see u next blog

Thanks so much I really enjoyed the video it really taught me something about commercial refrigeration.I am a service technician doing AC and chiller on buildings. That really help me and would like to thank you for sharing the taught with us .

Awesome explanation on how defrost clocks work with refrigeration application we haven't got to learn about those yet until this next term when we go back January 13th it's good to have a little heads up on this thanks a lot

Great video, Ive learned alot from watching it...thanks Zack!

Good job bro I learn more gad bless you keep going

Thanks for this I came across your video I've been doing ac for awhile and still learning and I've just gotten with a company that does refrigeration and this video really helped explain what I've been seeing since working with the new company thanks for your help and for explaining things and using the light switch part that really helped as well take care and I'm subscribed now

great video! thanks for sharing this great info and knowledge in the field

Great work my fellow HVACIAN

I have a deep respect for a person like you , have a deep respect for a person like you, have a deep respect for a person like you, THANKS

Excellent explanation of a defrost system. Thanks for sharing.

Very thorough explanation and tips! Thank you very much! Know that this video is very appreciated and helpful.

Thank you sir for the lecture. Alot of people don't like to share the knowledge.

Thanks for clueing me in to X terminal. Replaced clock needlessly but no damages, just a spare clock.

This dude knows his stuff. Imprissive tutorial.

Keep up the great instruction, you are great. Thank you sooo much!!

Chris, Just want to say many thanks for posting these dumbed down versions like this! I just happened to stumble across your channel one day and have been hooked on your videos since. The way you explain things and don't whine and complain all the time makes them very enjoyable. I am sure a lot of your viewers are seasoned pros that already know all of this information. But the only thing that I knew about HVAC before watching your videos was it makes summers bearable and keeps food cold. So as someone with no knowledge of any of this stuff it really helps me understand how it is all working together. I find it all very fascinating and am truly appreciative of the work you do. I have been considering going to school to learn this trade as it seems very rewarding at times. Anyways just wanted to say thank you and hope you have a very merry Christmas! -Ryan from Ohio

Your videos are helping me so much man, you don’t know how much I appreciate it. Just started my new career in refrigeration tech work. Been doing residential AC TECH for two years and started to get bored and wanted to learn everything. Your videos are great.

You are a natural educator

Thanks for the videos bro. As a new technician these videos are very helpful! ✊🏾

Keep the videos coming im a 4th year refrig mechanic and its a good watching these american videos

Personally I think it would be a good idea to have the defrost heater on its own seperate contactor and have the timer control the coil rather then running it thought the timer. While the timer can handle the current if something went wrong with the heater and it started over amping then it can easily overload and burn up the relays in the timer. If you used a contactor that was rated 10-15 amps higher then the load of the heater it could easily handle the over amping and neither the timer or contactor would get damaged. Adding a properly rated fuse in line with the contactor will add an extra layer of safety that can protect the contactor meaning if the heater shorts or something you will most likely only have to replace a couple fuses instead of a timer.

Thank you for the explanation. It really helped. Awesome way to explain. And great video format.

I had this explained to me before and it was not like that. Your da man when it comes to explaining. I am Just getting started in Refrigeration from Resi and I use your videos all the time I run into an issue. Will give you tons of credit on my KZfaq station. Thanks.

Thank you for clarifying the function of the defrost timer. Akshay the video and knowledge!

my first time seeing one of your vides and it the best by far. very good explaining. very educational video. Thanks for the time you put into it. i will be checking out more of your videos.

Thanks for the information am ordering fluke 376 fc

I used to wind up making several repairs to other units I wasn't called on. Some guys put blinders on when entering the motor room! I liked to keep my equipment running nicely-made me stress less when home.