Service call on walk in freezer not working properly. I take you through my troubleshooting steps to determine the problem.

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37 thoughts on “Iced up walk in freezer

  1. 404 Refrigeration & HVAC Services says:

    Excellent video. I’ve worked with a lot of techs that know what they’re doing but aren’t very good at explaining what they’re doing or why (I would include myself in that description), but you are the opposite, that was an excellent logical video clearly explaining each step and why you took the next step in the progression of servicing the machine. If and when you get tired of being on the tools you could easily take on a teaching role at a technical college. Thanks, looking forward to more of your videos.

  2. Len Miller says:

    Brought back memories for sure. I remember working at a wholesale club. Their freezer had 4 separate evaps and one had a bad fan motor. They would never shut the unit down so we all had cold weather gear we had to wear. The store would lift you on a forklift up to the evaporator and the driver would leave. The wires on my meter would become brittle, sockets would stick together and any sweat would freeze almost immediately………………then you had to hope the driver came back to get you……..why did I retire again????? lol Great video

  3. Wiresgalore says:

    Seems like it would make sense to have the defrost timer drive a contactor instead of relying on those springy contacts to switch/carry ~10A of resistive load. I'm sure the timer says it rated for it but you can't help but be skeptical once you see melted plastic, and those numbers degrade as oxidation and pitting takes hold. Id be curious to know how common that failure is for that specific timer.

  4. Tim Stanford says:

    Great video! I am a diesel mechanic and I am interested in refrigeration. There is no training for the aftermarket for mobile refrigeration that I am aware of. Your videos help alot. Keep up the great work!

  5. buixote says:

    I wonder if they make washers that would turn your sheet metal screws into captive screws… that would be pretty killer…! Search: "self retaining washer"…

  6. Glenn S says:

    good video, only you should have ZOOMED in on the points contactor to show how is was no Longer aligned and making 1/2 contact till failure. the melted plastic caused this

  7. Aeternus Doleo says:

    Minor point of criticism: Check voltages after pushing the disconnect switch to ensure the power actually disconnected. Breakers and/or disconnect switches can fail and remain closed. You had 208v on a wire you're going to be switching over to a new module. Getting zapped by 200+ volts is unpleasant at best.

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