BAR AC KEEP'S TRIPPING THE BREAKER
Vložit
- čas přidán 1. 08. 2020
- The customer asked me to figure out why the main breaker for their bar ac kept tripping now I never found the exact cause of the issue but I found a bunch of things could could have been the potential problems...
Contest email - contest@hvacrvideos.com watch the video till the end for the instructions on how to enter
HVACR VIDEOS NEW MERCH WEBSITE - www.hvacrvideos.com
Discord server link / discord
Please consider supporting my channel by
Donating thru Paypal - paypal.me/HVACRVideos
Becoming a Patreon member - Patreon / hvacrvideos
Becoming a CZcams channel member / @hvacrvideos
By purchasing tools via my affiliate links below at TRUETECHTOOLS.COM and use the offer code BIGPICTURE to save 8% on your total purchase (exclusions apply)
Visiting my website and purchasing merch www.hvacrvideos.com
TOOL LINKS
Ideal fuse puller - amzn.to/3k0fxhr
Viper coil gun- www.trutechtools.com/Refriger...
Viper Condenser coil cleaner Venom Pack- www.trutechtools.com/Viper-Ve...
Insulated screwdrivers - www.trutechtools.com/Klein-To...
Milwaukee M12 cutoff tool- amzn.to/30imNxw
Fieldpiece wireless scale www.trutechtools.com/SRS3?aff...
Fieldpiece SC480 meter www.trutechtools.com/Fieldpie...
Fieldpiece JobLink wireless probes www.trutechtools.com/JL3KH6?a...
Sman 480 digital manifold www.trutechtools.com/Fieldpie...
Fieldpiece MR45 recovery machine www.trutechtools.com/Fieldpie...
Fieldpiece VP85 vacuum pump- www.trutechtools.com/Fieldpie...
Wireless probes charging tee - www.trutechtools.com/AVT45?af...
Samsung 8" Tablet amzn.to/3bW8QJ6
OtterBox case amzn.to/2wgd0M5
Manfrotto tripod - amzn.to/3bPoupz
Jobi phone mount- amzn.to/2Yh2EY0
Magnetic Umbrella - www.trutechtools.com/Supco-Ma...
Bomber safety glasses - amzn.to/2yD6sbs
Bomber safety sunglasses- amzn.to/2zmhdPp
Nylog blue - www.trutechtools.com/RT201B?a...
Flir One Pro thermal imaging camera www.trutechtools.com/FLIR-One...
Check out my new CZcams channel- / @hvacrtools
For Optimizing my videos I use Tube Buddy
www.tubebuddy.com/HVACRVIDEOS
Please consider subscribing to my channel and turning on the notification bell by clicking this link goo.gl/H4Nvob
Social Media
Facebook / hvacr-videos. .
Instagram / hvacrvideos
For any inquiries please contact me at chris@hvacrvideos.com
Mailing Address
HVACR VIDEOS
12523 LIMONITE AVE.
#440 - 184
MIRA LOMA, CA. 91752
It's good that you leave in the mistakes (I do too). So many technical channels edit them out. It's good to show that everyone makes mistakes and has little "incidents" at work.
I agree!! Thanks for watching Clive
OMG YOURE HERE. And this was only 2 days ago. Both of you have great videos.
Thanks bud!
Ought to take that spare fuse and install it in the alligator clips.
Big clive? What are you doing here?
I like that you don’t edit out your mistakes. I show your videos every other Friday at our meeting. 👍🏼
I dont see the point because we all make them.... thats how we learn, thanks so much for the nice words and thanks for watching!!
chad darr hell yeah! Gosh I hate when that jumper falls off
From showing mistakes you really learn.
Looking at the fuses you took out, one was a different brand... that gives me an idea.
I propse that one of the previous problems took out two fuses. One of the fan motors and both compressors have been replaced, surely one of the three took out some fuses in the process. This stresses all three fuses, the two weakest ones blow. Someone comes along, replaces the motor, replaces the two fuses that are blown, leaves the one that still measures good.
That third fuse was also stressed, but not replaced. Over time, through just normal operation, that one finally goes. Now you have a missing phase, and we all know what happens when you try to run a 3-phase motor with one phase missing. The breaker trips. The customer resets it, and the board does all of its initialization crap, which takes a few minutes. When the board is done deciding whether or not it is still an air conditioner, it tries to energize some motors, with a phase missing, and the breaker trips again. Customer report: "I reset the breaker and a few minutes later it trips again."
So you've walked up to a unit that doesn't actually have a currently-existing electrical problem, other than a missing phase, caused by a fuse that blew under "normal" conditions having been weakened by a previous fault.
just a theory.
Certainly possible.
It would be interesting to see the discrimination/coordination between those fuses and the breaker though. We saw the breaker was tripping first in this instance with the locked rotors/single phasing. Would the fuses have gone first in a sustained overload or dead short? Probably the latter.
I love your theory, especially the "deciding if it's still an air conditioner" part lol, but I will also suggest that sometimes fuses fail, possibly due to manufacturing defects causing it to overheat, or corrosion causing overheating, or sometimes due to mechanical fatigue from the vibration.
If you open the fuse, you can tell the difference between a hard fault and a mechanical failure, and at least tell something about the fault that caused it.
Perhaps a theory but in my days as a tech (computer nerd now) we saw that kind of behaviour often enough on 415V three phase that it was standard practice to replace them in sets (Euro & Australasian 50Hz work)
but it could have been the one fuse replaced and not the other two! maybe brownout/phase loss, short outage and no delay to turn on or simply upstream internal building wiring issues. something in the breaker panel overheating and causing tripping, which they reset too often. guessing game unless you can catch the issue or inspect it all, sometimes asking the customer or who was there if there was an weird power issues works :)
@@ke6gwf good suggestion, fuse guts are messy, so be prepared ;)
Who else was excited when he said the customer approved the work...more video!
Those are pleasant words whenever you are working!!
bigpardon 👍🏼
One reason I’m getting into commercial. You’ll always have work.
@@gregmercil3968 More importantly, your customer will always have the money to pay...
@@LMSILVIA s0
Chris, I do assessments on facilities across the country which includes HVACR. You are always cleaning up garbage and making it right which is refreshing to see and I loved that you got rid of that plastic pulley on the blower.
All that being said I see hackers a lot and it is uplifting to see someone getting it right.
Pride in Craftsmanship...don't see enough of it.
FYI: I realize guys do all the time, but you don’t have the PPE to be pushing on those disconnect knives with it energized, even with an insulated screwdriver. I enjoy your videos and would not want to see you get hurt.
Arc flash potential. 👍🏻
You’re right. It does rarely happen. I worked with a guy who it happened to. It was 480v. His hand looked like an overcooked hotdog.
Famous last words "I haven't test power yet, it should be off cause the breakers off"
Lmao
Kinda like "well i hope this doesn't blow up" i keep expecting a loud bang and smoke from something
@@demonknight7965 ya gotta remember, to be a top notch HVAC dude ya never let the smoke out.
ElectroBoom Approves of this message.
I had a compressor panel that still had a phase live when the isolator was off. The isolator had failed internally.
One of the most difficult things to teach any technician is how to question and walk back their assumptions. Most people respond to "I don't know what's going on" by shotgunning solutions (I call this "flailing at the problem"), which usually leads to incorrect or half-solutions to problems because the problem solving usually stops at the first thing that seems to change the behavior.
My response to flailing at problems is to remind technicians that when the world fails to make sense, they have failed to have the correct assumptions about how the world works. This is why when I teach troubleshooting theory, I always require my students to understand the system and have a testable hypothesis for the problem mechanism before they make any changes.
It was very nice to watch you make mistakes and walk back your assumptions when the problem no longer made sense. That's not something that is easy to do because it requires much more mental effort than flailing. Good work. :)
I'm an electrician and at one time a friend of mine who's a dentist called me and he had a problem that the fuses were blowing out so he asked me if he could put the next size amp fuses on the A/C unit so I said no you can't do that so I went over to check the problem and the A/C guy replaced the compressor but he put a bigger compressor so the unit was overloading the fuses I told my buddy that he had 2 options to put the correct compressor or rewire and replace the fuse disconnect box so he decided to rewire and I've done A/C electrical work repairs because the lack of experience in the electrical safety and all the time A/C techs tend to do a short cut but they end up creating a huge problem and I hate that. Good video keep up the good work and have an excellent day.
i love the extra long videos
That's what she said! 😂😭
Same!
Sir I proud of your job I like your job sir can I attend your job and your company please tell me I want to join your job and you company please I am from Bangladesh and I am normal technician me but I think I can do better please forgive me turns I want to job with you thank you sir
I wish there were techs like you where I worked when I got out of hvac school. Super informational and break it down so we understand. The techs where I worked didn't care and acted like I was less then them and not worth the time. Which killed my drive to work commercial/industrial or for another company for that matter. Guys like you really help us new guys out. Thanks man!
I like the fact that when you are wrong, you own up to it and move forward. There are many people who are stubborn and won’t admit their own faults. I’m sure there are also technicians that would just replace a blown fuse and call it a day. I really like your troubleshooting skills and persistence that usually pays off in the end!
this.
I'm not an HVAC guy, but I'm glad that across all the trades, those who do care are more than willing to clean up the spaghetti. I work with low voltage security hardware and if I need to put my meter up to something, it definitely helps that I can see the where everything goes. Great videos as always.
When the boss goes out to the job you left & proceeds to talk to himself for an hour about the unit while literally getting nothing done. I am kidding bro! I love the content & the explanations along the way. P.S. I am ordering a shirt!
Ha thanks bud, talking to myself is nothing new, adding the camera to the mix just makes me seem a little less crazy
@@HVACRVIDEOS if you start having a 5 way conversation with your self let me know and i will send your membership certificate to the crazy club :) Btw yes i have done that. I routinely have 3 way verbal conversations with my self 5 way requires 2 in my head 🙃
@@HVACRVIDEOS There is nothing wrong with talking to yourself...
After all, how else are you going to have an Intelligent Conversation...
@@demonknight7965 Multi-way conversations with your selves isn't the problem...
Having an Argument with yourselves and LOOSING is the problem...
@@HappilyHomicidalHooligan so true
No bushing on the Blower motor coupled with vibration = wear thru on the wires
the insulation on the wires going into that motor didn't look that great indeed.
Yeah no bushing? I'm with you on this one.
You have the some of the best service call videos.
Thanks for everything including showing your mistakes. These mistakes are a blessing for us young techs fresh out of school.
Man ,every time I watch your videos I learn something, like that dirty IBW was making that shaking, your the MAN.
Gotta tell ya, it´s somehow therapeutic to me to watch your videos, I can sit for hours watching you explain and fix stuff.. Thanks and keep on the good job
Thanks so much! I will be going live on CZcams this evening 1/18/21 @ 5:PM (pacific) to discuss my recent uploads and answer questions from CZcams comments, the Live Chat and emails, come over and check it out. czcams.com/video/donStSxMDe8/video.html
I really appreciate the fact that you went through the troubleshooting process of trying to figure out why the fuse blew instead of just replacing it. I know too many people that would just replace the fuse and call it good with no thought about the cause, just so that they can get the job done quickly and get paid. Super Awesome videos, I found the channel a few weeks back, and it goes great with the mechanical engineering and thermodynamics classes I am taking currently. Keep up the awesome content!
The best thing on CZcams: good educational videos, that are also entertaining. Keep up the Great work.. ! Vince
Also: keep up the grunt work.
2:05am in Singapore and I am lucky to have watched your video and entered the contest! Managed to learn lots of stuffs in your channel! I just wish there are more competent techs out here in Singapore to do maintenance on our AC Units.
I like watching your videos when it’s electrical issue, electrical is my struggle but watching you trouble shoot improves my skills.
Very nice. There's no sweat leaving small mistakes in a video, and showing them getting corrected. That's great information for those learning how to troubleshoot. Knowing a problem was a small mistake made during troubleshooting versus a preexisting problem is very important. It's real-world documentation!
Your wiring job at the end looked nice to me; even if I hadn't seen how it started. It's so satisfying to see something go from almost scrap; to having a new lease on life.
As for the 'little bit high' discharge temps there at the end, I have a feeling that the gap around the cover (while it was just leaned up against the housing) was letting quite a bit of air bypass the condensers. Probably once that was completely buttoned up, the pressure was lower.
Looks like a hot day in mo val ....
My Monday customer is about 2 blocks from where you were , and yes past few weeks have been brutal !!
Stay hydrated Chris !
I've always been curious of HVAC work, I;ve worked in alot of various skilled trades but never this work, Ive learned a lot about it from this channel alone
You know you love ac when you do a 12 hour day in south Florida and watch 40 Mins of ac troubleshooting as soon as you get home. Great videos
It's always nice to watch a tech who knows what he is doing.
"Ok so I screwed everything up, well that's fine."
I'm a software engineer and I sometimes submit code, see reviews, and think the same thing hahaha!
now try being an end user or technician that has to deal with both your broken software and the electrical wiring/electronic design failures.... add in mechanical issues for a triple headache
We have all done that Chris. I have been a repairman 49 years and I don't know 5 fellow repairmen that are as thorough and conscientious as you are. (AND or as knowledgeable).
Your videos as been a huge help for me as a new technician
I love watching your videos. I am from Philippines and currently I am working as Chiller/ HVAC technician in Saudi Arabia.
I really like that you don't remove your mistakes in the video, it really shows that in every work we will have minor mistakes....
I start HVAC residential school in 2 weeks, all because of you my man, the impact you’ve had is tremendous, love from Myrtle Beach
Awesome bud!!
HVACR VIDEOS I’ll be watching you every step of the way!
great, honest and extensive work, not leaving tiny things out because "you could" big ups
Looks much better so good to watch you thanks for sharing
Thank God you sorted out that wiring. It looked shocking. Literally!
Great job doing the instructional video on this unit. The focus on the unit disconnect was excellent. Sometimes techs do not realize that those fuses in the disconnect will open if they get hot due to a loose fuse holder, worn spade, etc.. Also, out here on the East coast with our colder temps, not having the economizer or some type of low ambient kit can cause nuisance trips of the clo board requiring a manual reset. What generally happens is that on a call for cooling with cooler outside ambient temps, the suction pressure will nosedive initially causing the clo to lock out on low pressure. A delay on break across the LP switch with prevent this. Also, head pressure controllers on condenser fans may be required if unit is to be used for cooling with low ambient conditions to prevent the clo from locking out. If fuses continue to blow, a phase monitor may solve the problem. As you know, with a fan speed controller, ball bearing condenser motors are highly recommended due to fans shaft oiling issues at low speeds with bushings instead of bearings. I think this unit will need economizer/low ambient as it is a bar unit and it will run at night, year round. Maybe not in California temps. I had to self train on this model unit, I didn’t have your videos? Ha,ha,ha!
how come im addicted to watching your videos and this is not my trade , i install sound and lighting in bars and clubs . your work is good keep it up
Nice Job! Looks a lot better and I agree with getting rid of the wire nuts. Thoroughly done over 👌
Great video as always ,really informative as usual, hope your staying safe and well during the Corona crap, I'm thinking of going in to the HVAC Industry, my brother in law does the controls side of stuff such as trend, deals with the AHUs etc that wiring is a rat's nest ,.stay safe and another great video from yourself
5:45am in Hawaii and I’m watching your vids.🤙🏽
That was a spider web of issues to come across , starting with the mystery blown fuse . Glad your customer chose your plan to correct those issues , the out come look nice an professional .
Nice job on a very hot day. I was always told to only run wiring at 70% of its rated capacity. I always hated to fix other peoples mess ups. Thanks for the video.
Going by the 2013 written on the blower motor, this unit is at least 7-8 yrs old, probably a 10 ton. With all the problems this unit has, it is a prime candidate for replacement soon anyway. We get about 10yrs out of a unit like this here in S.Fla. I know restaurant owners can be cheap at times, and take the less expensive routes, been there done that kind of thing. Good to see you were approved, and are gong to attempt to make it right.
Great contest for a solid valuable piece of equipment!
In my home town of Moreno Valley I see the Big M in the on the mountain, great video by the way I’m an apprentice and this video really helps out.
Excellent job, this one was a mess. I would have loved to work that one. I know this doesn’t apply necessarily to service but when I worked as Mechanical foreman on a 7 story hotel new construction the inspector loved seeing clean wiring jobs. Makes for an easy green sticker and continuing the work flow. First one done with their punch list wins, lol.
Good Day to you Chris. Name is Kyle and I watch your videos all the time. I work for the military and my shop consists of 4 people. We are responsible for roughly 400 AC units plus many other things on the base. When ever we run into trouble and get stumped I always try to find a video of yours to help us move forward with ideas. I also watch them at night sometimes just to better sharpen my troubleshooting and repair. You are making a difference on my end and I’m sure you are helping many other techs out in the field. Have a great day.
Wow thanks so much bud and thanks for supporting the channel with the merch order!!
Awesome work and thanks for the great content stay safe and take care
Nice video and Great problem-solving and figuring out the problem
These are excellent. Thanks for posting.
I'm not an electrician, I don't work in hvac or refrigeration but I really enjoy your videos!
Great video. Thank you for talking us through the Electrical. No discussion of a giveaway at the end. Thank you for this great video!.
Awesome job on the rebuild! I have a good feeling you fixed whatever caused the fuse to blow.
I am not an HVAC pro at all, but I watched this whole video. You do an excellent kob on these videos. Really outstanding. I make video for a living.
Thanks bud
Great job! I like that fieldpiece meter.
thank you for making your videos i find them enjoyable and informing.
Sunday morning coffee and an HVACR video, Nice!
Was just saying the same thing!
For me Sunday morning waffle house in the middle of a hurricane
I enjoy your videos. Not an hvac tech but i am an electrician. Agood habit to get into is to hook your jumper to the load first then the power. This will keep you from shorting the lead against a ground when working.
Awesome work! I feel like you went over pretty much everything on this rtu.
Your videos are awesome, maybe after some time watching your videos I’ll become a master tech in restaurant equipment ❤️🙌🏽
Love the videos. Always watch to the end!!
Good job.... I was and engineering tech for over 27 years.... I use to chase my tail trying to figure out why a fuse blew. Sometimes I just had to resign myself to believing that the fuse just blew and it was really just a faulty fuse.
Damn. Never considered that amp draw difference with the fan cabinet door closed. Glad I watched this.
I was watching a lot of board level repairs from Louis Rossmann. Its pretty much the same technique just on a much smaller scale. It's interesting to see how you can repair the units with oem or aftermarket parts and even have schematics right on the door. He is fighting for the right to repair bill for consumer electronics.
Sweet got a grey shirt with only 6 left. Big boy 2XL awesome, thanks for the gear.
Wiring and everything looks 1,000 times better great job!
Such a good job done here, the unit needed it
Got hats ordered. Love your videos.
Really appreciate the non-editing. That’s the only way we learn, thank you for sharing!!
Always check the motor amps and be careful setting the variable pulley up similar to the existing one that was on the unit as it could have been set up wrong from the start. 👍keep the vids coming
I’m betting the fuse was blowing because of the second condenser fan motor was sitting outside/too low in the shroud and caused high head pressure on the wrong size compressors. What a mess you had! Great work!
Every time I come across the "No Bushing" and in my head I say, "Bushing, I don't need no bushing..." and I climb down and grab a strain relief and put it on, that's my pet peeve, much like your contactor face being upright
Good video Chris . Condenser fan motor on the right side looked a bit slower than the aftermarket. Unless the OEM was an 875 RPM motor , and the Aftermarket a 1075 RPM .
Nice job,fixing a screwed up mess . There’s a lot of units like that out there . I’d like to see you explain economizers some time .
low voltage "spark spark" gave me a good laugh anyway, I hate when I do stuff like that lol.
That is a lot of hot,hard work to keep others cool. Great job!
I was told by an electrical engineer that those type of fuses were meant to be mounted flat because the fuse part inside is surrounded by sand keeping that from down grading overtime from the heat. Build up created from the electricity going thru it! What happens when the fuse is mounted up right is over time the sand inside compacts from vibration leaving the metal fuse part inside with no sand covering it to absorb the heat causing it to eventually melt and burn through opening up! That is why many times a fuse will blow for no apparent reason ! So that can be the conclusion after you trouble shoot and find nothing wrong! The repairs that you made were good but it would be nice to get rid of the excessive amount of vibration! Awesome video ! thanks!
Dude great video, just found you today. You go through everything very well and are pretty informative.
350 on r22 is quite high (143 deg F) liquid temp on a pt chart. Thats borderline hitting high head controls. Based on what you've found with the unit (nice sell btw, I wish all customers were like that) and how the compressors were changed pretty dam close to each other, I'd say they didn't do a proper system clean after a seize up or burnout or reused the same gas. I didnt see what your discharge temp was but I can only assume at those pressures on the liquid and temps on the pt chart your oil is starting to wax. Maybe splitting the condenser coil and checking to see if the previous company did do a proper cleaning would be a good idea.
But I dont work where it gets 110 deg f outside. I'm north of 60 in Canada, i work on outdoor condensers and then go in the freezer to warm up. So maybe I'm barking up the wrong tree and those readings are acceptable.
Again thanks for the great videos!
I do hope the fuse size was point out to read thats almost as bad as upside down contactor name plates. Good catch on blower wheel packed. Respect for going OEM
I your videos, i find your work fascinating. Thanks!
Another awesome job !
Nice video. Cant wait for my hat! 6 gauge is the standard for 60 amp circuits by me.
Just got my HVACR hats in mail today! Great hats n product! Thanks for the quick delivery man! Love them 👍. Time for some shirts lol
Thanks so so much for the support!!!
@@HVACRVIDEOS thank you for the videos man. Keep up the great work 👍
After watching a lot of your videos, one thing stands out across all the units you service - Open frame contactors. So many of them have burnt contacts and no wonder - they're open to atmosphere. Particularly where you are with such a dry dusty environment, it's always going to affect the contacts. So the question is twofold: 1) Why aren't the manufacturers designing with closed contactors, and 2) Why aren't you all installing closed contactors when repairing?
$$$
Should be habit to spray clean contactors on visita with an electronic safe parts cleaner. Dust enhances resistance & corrosion, especially in the Southwest.
failing parts generate money haha
Don't judge a book by it's cover. There was no voltage drop and nothing was getting hot. The contacts get pitted from normal operation, every time they make or break a load there will be an arc, but that is what they are designed to do and the contacts are made of materials to handle it. Open up a sealed contactor and you will still see pitted contacts. But they also do have a definite service life.
it's from high start current when they close and large back EMF voltage spikes from the motors when they open. just no good way around it :)
Love the video mate. Been watching them and really enjoy them. Would be great to get my hands on some merch but unfortunately you dont ship to australia, yet. I do residental work in australia but love the content and videos. Keep up the great work.
This is just a really good video learned a crap ton.
Nice video sir. I had this issue with AHU York 20 tons that keep blew fuses. I checked everything and it was good. I got callback again next week for same blew fuses. I found out that panel is too old. Maybe you can have your customer to call for electrican to replace breaker and possibly wiring issue within panel. My customer needed up replaced panel and it’s working good after that, sir.
When testing contactors , switches relays etc i prefer to test for amperage drop or loss using a bench meter. I find its the most accurate way of determining the viability of any contact. My threshold for pass/fail is 30 milliamperes. Testing voltage drop across contacts is arbitrary as voltage is the ‘pressure’ or potential for current flow. Measuring actual current bypassing the contact through the meter is exact and precise.
What do you mean amperage drop? Contactor or relay will pass al the current, even if it is not functioning fully properly. Measuring the resistance, or the voltage drop is the best way I think, followed by the temp check (which can be from the voltage drop, or from the relay coil itself just warming up).
Chris did you fire the heat ? Those insiders are notorious for having issues causing blown fuses!!! Also did you put a connector on the blower motor and check those wires?
Its amazing how that little fuse blowing out prevented the entire thing from starting. The moment you plugged in the new one it all of a sudden started
I thought I noticed a bearing chirp from the condenser fan motor. I think the one you replaced had a very dry shaft bearing and when the motor runs for a long time it may have siezed and when it cools down will spin again. With the compressor lockouts bypassed, the compressors would be over amping causing the fuse to blow.
I agree. correct!
Good video, that is service done correctly.
Can I ask you a favour Chris? Can you do a video that goes into more detail about the quotes that you provide to your customers? I’d like to compare notes to what we’re doing and see if there is any room for improvement. I was suspecting that your customer was going to decline your quoted repairs given the condition of that RTU, and then you got approval. I’d like more of my customers to approve my repair quotes...
Thanks!
Thumbs up from cape Town, South Africa
Great job and video
Chris, very good quality training video's. One question though, after you checked the major loads with a VOM why didn't you follow up with a megger? 500vdc low amp insulation test would show a weak motor winding.
I have to wonder if the vibration rubbed out one of the power wires going in to the unprotected knockout on the blower motor. I didn't see the finished product, but I'm sure you checked. Also, was that beer can hiding in that unit ;)
Thanks for having a contest, as I don't work on A/C stuff myself, I'll let the others put their entries in.
that snake's nest wiring. i've opened a panel to this, and first response is "wtf??", then, "i need a beer". had one where my own tech connected everything inside a 2" diameter ball make from rubber tape. from what i heard, he works for oscar-meyer now.
You are welcome, you are probably the only business that can keep going on without being infected due to being out in the open air. Like others have said look after your self, family and employees.
lol 😆 when I seen that spark ⚡️ I thought it was over great video