Service call on a walk in freezer not working In this video I explain how the electric defrost system works in detail.

For editing my videos I use Adobe Premiere Elements
For Optimizing my videos I use Tube Buddy

Please consider subscribing to my channel and turning on the notification bell by clicking this link

To support my channel please visit my Patreon page at

Social Media

For any inquiries please contact me at

Subscribe to Channel:

This video by HVACR VIDEOS was liked: 3097 times

If you like this video by HVACR VIDEOS, please support their CHANNEL by clicking on the SOURCE link below and Subscribe.



Featuring Your Videos:

By featuring your videos on our blog, your videos will receive hundreds of views daily from our website visitors, you get a backlink to your channel for followers to subscribe to your channel. This is a win/win for SEO for both of us. If you would like your videos or channel highlighted and premiered on our blog for FREE, please contact us.

However, if you no longer want us to premier your channel, and want us to remove your video and not feature your channel anymore, please contact us.

Video Post Disclaimer:

The information contained in the multimedia content (“Video Content”) or post content in general, represents the views and opinions of the original creators of such Video Content or post, and does not necessarily represent the views or opinions of The mere appearance of Video Content or the post on the Site does not constitute an endorsement by or its affiliates of such Video or Post Content. 

The Video Content or Post has been made available for informational and educational purposes only. does not make any representation or warranties with respect to the accuracy, applicability, fitness, or completeness of the Video or Post Content. does not warrant the performance, effectiveness or applicability of any sites listed or linked to in any Video Content or Post.

Affiliate Disclosure:

This post and description may also contain some affiliate links, which means that the post creator may receive a small commission at no extra cost to you if you click on some of the product links and decide to make a purchase. This channel is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to

Copyright Issue:

If you find any of your copyrighted material in this post or video, please contact us, so we can resolve the issue.

All rights reserved by respective owners.

39 thoughts on “Walk in Freezer service call (electric defrost explained)

  1. Win Dennis says:

    This was a great video. I would’ve like if you explained what each of the wires controlled. The first set obviously went to the coil heater. The rest then the condenser unit. X as you say defrost termination.

  2. Jas Wolfie says:

    How much do those clocks cost? They look easy enough to fix to be perfectly honest. BTW those are resistors, fairly large ones which means they dissipate a lot of heat, likely doing a voltage divider to drop the voltage to a working voltage on the board. Most likely fault is the relay fused open for safety. (fail safe)

  3. Appomattox Ross says:

    It's too bad that commercial buildings such as these cannot have a permanent sun shade all across the roof to protect equipment from the daily blazing sun. A lot of electronics will have early failures.

  4. crazytekkie1 says:

    I agree with others… great thorough job explaining not just how but why things are done the way they are… gives better in depth understanding… just a great job!!

  5. F F says:

    Hi guys,
    My norlake walking freezer just stop working.
    Defrost timer panel looks like no power, the green light on panel is really weak flashing. Comp and fan not start at all.
    Can any one help?

  6. Abdorakeeb Naji says:

    Very good vedio with details 👌but I have a question, I see some of these defrost timer the power coming to 3 and N.instead of 1 and N….and there is jumper between 3 and 2 !! Is that's mean that # 1 will be the defrost instead of 3 !! Will you explain that please and thanks..

  7. Armando Rodriguez says:

    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 ✌🏽

  8. Matt Martin says:

    Hi, can you do a video explaining how condensing units are connected to case lineups (example, 36 feet of produce, or three 12 ft cases) ? Are the thermostats in all 3 cases connected in parallel with each other, and in series with the liquid line solenoid coil? Thanks.

Leave a Reply

Your email address will not be published. Required fields are marked *