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Davis Amy Clark Charles Martin Ronald

Taylor Donna Taylor Karen Williams Mark

@1:54, I've had the 1968 edition since the late '70s.

👍👍👍👍👍

Great Video Joe H Navy Seabee

Best every!

Audio only in the left channel. Sorry, cant watch.

Great video, but i had an issue where the walk in freezer coil was not doing a good job cooling the space, superheat at the evap was 39, Suction pressure 17psi, i had to charge the unit to get proper subcool values, how cam i use the information in this video to diagnose a restricted txv? I know this video can indicate if a txv is stuck open but what about an restriction where the txv cant allow much refrigerant through? I already checked across the drier and other places

When I was doing commercial electric common was the neutral. When I got to an industrial plant common was my power for 24 volts...sometimes 😵‍💫

This has helped me out understanding and better troubleshooting an issue I have going on currently! 👍

I very rarely write reviews but I decided to write you are truly God in this industry TNX!

Thank you I learned make more videos

Awesome video, thank you! One somewhat related question: Are there gloves available that provide both electrical and thermal (i.e., protection from refrigerant burns) protection?

Thanks 👍🏻

I'm convinced technicians doesn't want to trouble shoot. They just want you to replace with brand new, with something that probably didn't need to be fully replaced.

In this case the txv valve was good or bad?

I’m finding this class very informative and well tought. It’s been 40-45 years since I handled refrig/hvac. And I’m wanting to learn again. Thanks !

How to get the outdoor temperature in °C?

Awesome very intuitive helped me understand it.

I got a second opinion furnace call and when I got there, the house was 79 degrees and the lady said the furnace had not stopped running since the first guy left at 10 am. All I had to do was remove the alligator clips from R and W and guess what? The furnace shut off!!! I guess he fixed the problem and kind of left in a hurry. I didn’t charge the sweet lady but kept the jumper.

So if I’m testing a TXV on a geothermal heat pump, I can switch to heat to effectively do this same test?

This is a great video !! Easy to understand and yet it also made me think. A video on Heat Pump Hot Water Heaters would be great as there seems a lot of voodoo around them.

Excellent. Many thanks for this. I thought I was going mad with mine.

a quick question! how did people make ice in the past before refrigeration and how did they move and make it in the summer months?

Top notch explanation and with field example 👏

But... The condenser is not condensing without the fan.. you are feeding hot gas into the txv.. how are you testing to TXV when you are creating a fault for the TXV to not work properly?

Brilliant, simply brilliant. 👏 Does blocking the intake or discharge air produce a similar result without removing live wiring and potentially shorting out something, like my lifespan?

I like him😅

Thts a way to burn the fan 50 percent voltage disconnect the cap. Safer too

my customer complains that unit shuts off, stays off 15 minutes then comes on for 2 minutes and off again. Is this a cycle rate problem.I like that the unit stays off 15 minuted.

Well done Thank you for your sharing

Great video. Thanks

Thank you very much

Thank you

Dont let those crazy Kevins and Karens mess up a good strategy 😂

Great video

30:48 - I was taught the complete opposite. When a unit is low on refrigerant, your manifold gauge will show high Superheat, low Subcooling, and low pressures on both sides. And since temperature & pressure are directly proportional, the lower your temperatures, the lower your pressures. You even confirmed this at 33:22. Would you please elaborate on my confusion here? Thanks.

THIS IS SO HELPFUL!

"You can't watch the sensing bulb and the suction pressure at the same time." *Job Link probes have entered the chat*

Thank you for the explanation!

Thank you

10/10 presentation

Pure gold... I'm talking 24K...

Fluke = waste of money, i got two and they read totally different

My right ear feels lonely.

Incredibly good. You are a born teacher. Thank you!

Please cover heat pumps as well

Eric, you are spot on. The most important thing to do to understand the problem the customer is having is to talk to them. The second most important thing to know when troubleshooting is the equipment's sequence of operation. I can tell that when I worked for other people I unfortunately never had a service manager that understood the importance of this, all of them were parts changers, even though one of them had actually taken a two year HVAC course. Sad, but true. That's when I decide to go out on my own since I knew I could do better than what was already out there. Thank you for this video! All five points are critical to successfully troubleshooting an HVAC system. I retired in 2022 after running a very successful HVAC business. I often out-troubleshot the BIGS'S technicians, but why was that? The reason was, first of all, I knew my stuff, second of all I knew how the equipment was supposed to work, and thirdly I followed a logical step-by-step process(i.e. what is supposed to be happening and why isn't it) to solving the problem. Eric, I wish I would have been able to work for you. Hope you're having a wonderful life and thanks for imparting your knowledge on us.

What if you have a high, medium and low cycle rate what do you set it on for the best Heating in your house and Cooling in Michigan

During this test test (ie raising head pressure) if pressure remains the same then TXV is good. What would bad look like. How much change in the suction pressure would be considered bad.