THE MAIN BREAKER IS TRIPPED AND THE AC IS NOT WORKING

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I love how when you're explaining things and then suddenly... "Oh, look, duct detector...oil!" Cracked me up.

I mean, you're enough of an expert to look into the reasons why things happen the way they do. That's good enough for me.

Great explanation of what a circuit breaker does. So many people have this idea that the breaker is to protect you/them. A standard breaker couldn't care less if the power is going through something plugged/wired in or you so long as the current isn't above its rating. It will let you get electrocuted all day long. It's there to protect against overcurrent that could cause a fire or other hazard. GFCIs are meant to protect you, and some breakers do have those built-in, but a standard breaker ONLY protects the wiring and ONLY looks for overcurrent.

Always look forward to watch your videos. Your troubleshooting expertise is on point. Keep up the good work

Last week, we had two separate electricity fluctuations at the donut shop due to high winds and tree branches. Both times the power flickered, I needed to reset 6-10 breakers to restore power to 110v and 208v equipment. One circuit had barely 2 Amps of load (wireless headset system) on a 15-Amp breaker, another circuit had about 4 Amps of load on a 15-Amp breaker, etc. Over a million bucks spent on "renovations," and the worn-out 1990s breakers are still in the panel. (EDIT: Most of the breakers don't "click" on or off, they have very "mushy" operation that is more than a bit concerning.)

If our 208v espresso machine starts working, you can hear the 480v microwave convection ovens' internal fans slow down. If the microwave convection ovens are cooking something, all the LED lighting overhead starts flickering. At this point, I'm simply waiting for the place to burn to the ground so I can stand there with a smug grin and say, "Maybe next time you'll listen to me?"

Hey Chris, I love watching your videos even if I'm just a sparky, it helps to show me troubleshooting tidbits, I did notice though that at the beginning of the diagnosis you checked for continuity to ground, however its also good to check for continuity between the phases before re-energizing a tripped main breaker as I have seen a scenario where 2 phases were shorted together but weren't shorted to ground.

Good job diagnosing it. That’s absolutely insane that 2004 was 20 years ago.

Once again I learn a lot from you. You explain everything the way I can learn. You are sharp

I'm glad no one was there when it went but I bet you that was one heck of a light show coming out of that

Hey Chris you absolutely are an expert! This video show that your knowledge makes a HUGE difference when doing big picture diagnostics. Great video

Chris is a master at his craft that’s y he’s the best of the trades. Very thorough and precise work.

The thought of a chef sitting there at the breaker box, just resetting it over and over.... why... if it goes pop right after you reset it the first time, that means something is seriously wrong, so STOP DOING IT!!!

By far one of your Best videos i"ve watched. Your customers are lucky to have you.

After about 30 years into the trade you'll be able to diagnose with one low side gauge,
an old Taylor stem thermometer and fix most of it with a SOG or Leatherman tool.
You know what the real problem is?
A 20 year old Lenn-ox!
This ain't a 1950's Carrier Weathermaker!
Shame the owner for having inefficient garbage still being used.
My rule was 10 years max on anything.
7 years was maximum for equipment depreciation!
I only slummed for mom and pop startups until they got on their feet and understood equipment depreciation for tax advantage for their business.

But dude!!
The cook or chef is the top dog in the facility!!
Another words, your understanding of a ohm doesn't even come close to their understanding of how to flip a patty melt, do you understand that?😂😂

Compressors need motor overloads.
You should be using an insulation tester, 500v to earth picks up lots of faults.
You should be getting commission for selling a new unit.
Great channel 👏

All the years in college come flooding back. Professors lecturing that the circuit breaker "Is there to protect the circuit".
"The load is on it's own". FAA Test Question.

(2) 15 tons direct from Lennox national accounts will run you 68k and about 20 weeks lead time.

Good troubleshooting chris