#2 compressor:"I QUIT! Im outta here" #3 compressor: hands in 2 weeks notice

A litte portable booster pump would be a great addition for those low pressure situations, like a grundfos scala 2.

when i hear someone say "i could pee harder than that" it usually isn't literal but you weren't kidding, that's probably the lowest preasure i have seen yet!

Coil cleaning is my favourite part, thanks for leaving long sections of it in

True story! had a Tenant use a kitchen fork "yup a kitchen fork" to clean my coils on my ac air handler. She said she was trying to help me out. Didn't want to bother me with a service call......Well, I had to replace the entire air handler unit at "Her" expense. Too bad for her. Unit was still under warranty, but warranty doesn't cover kitchen forks... Yes, she paid! She had a house that I was going to place a lien on if she didn't.... it was a poker bluff on my part but it worked.

well the symtpoms start coming and they dont stop coming, flip the switch and i hit the ground running

thanx chris , i learned very much about hvac , and my English is also going good because of your video s , thanx very much grzz from the netherlands

9:54 comp 2 is ARCING... holy shit

Be sure that the water flow from the hose satisfies the pressure washer's input requirements. Otherwise, you get cavitation on the pump input, and very short pump life. You almost need a pressure gauge on the input.

I would think pre-washing the condenser would help the chemical spread out because it's likely water soluble. Great video as usual.

Not sure if you get them in USA but we use Battery Power Washers the ones we use are from Worx 20V pressure washer but I think karcher do one as well. I'm in Scotland, UK btw. Very handy piece of kit for cleaning coils 👌

when I saw the wires jumping on comp. 2 that told me it was arcing internally either phase to phase or phase to ground the wires jump due to surge current causing electromagnetic forces to act on the wire making it move

Big picture diagnosis is critical. Because the customer might want a 20 year old unit fixed, and they would lose faith if something was missed. None of us probably like working on trash cans, but that's what we get paid for time and time again. Good work Chris!!!!!!

Thanks Chris for the Sunday morning videos. Something to look forward too. Also thanks for the 60fps 4k . Looks great on my 55 inch Samsung

A local pizza business with 6 locations each with 100+ seating. And it wasn't low quality cardboard crust pizza like the big national chains. They had a thriving business model with a lunch time buffet that packed them in. One location was a 30 year community fixture. All locations giving up the buffet and moving to hole in the wall locations with no seating and to-go pizza only. Most of the other small individual restaurants in the community are closed permanently. Lot's of for lease signs. Kinda reminds me of times when Nafta was first put into effect. The current result is a short term boom time for HVACR as the new hole in the wall locations have to be equipped with the necessary equipment. A bad long term for HVACR as overall there will be much less equipment to repair.

I love watching you trouble shoot, you are very thorough in diagnosing all of the issues.

Bright and early, good morning!! 🌞

Geez! That wouldn’t be fun to work on a unit with multiple problems that keeps showing up!

Those Lennox units are pretty good too, but once they start having problems, they have a TON of them.

Lowes sells a $100 cast iron transfer pump that works very well as an in line booster pump. I use it often in the middle of summer. Also works well to move glycol, and for decaying tube and shell heat exchangers.

Yo chris keep up the good videos, do really enjoy them!!!

What this channel has taught me....restaurants care nothing about their equipment, run it into the ground then want the cheapest fix possible, then say no thank you to any preventative work and wonder why stuff breaks.

On the 3rd compressor refrigerant will wash out the oil, if the crankcase heater is not working. What it does is keeps the oil hot so refrigerant cannot get underneath it when the system is off and it stabilizes. That is were wash out will occur. At work we have 11 chillers, sometimes the operator's will just kill power to one because it's not needed now the oil heater is off. And the chiller will not start back up when needed, however they have oil sensor's and you instantly know what's wrong but you have to go through a bunch of shit to get it back up.

Your pre soaking helps the cleaning solution soak in faster.

M18 Transfer Pump should try using that on your next clean . I think it will help with the water pressure issue. Great video as always

Hi Chris, just an idea for low pressure moments like this, pop to your local hardware chain or whatnot, anything with a garden Isle where you can find those cheap weed n feed spray packs (or any spray pack you just click onto the garden hose) and grab one, do what ever you like with the pesticide, just keep the lid and stick a screw or something to block the uptake hole, or even cut all the plastic back so you just have the little jet piece that sticks in the hose... Cheap little jet that ups the pressure but won't damage anything 😊

Man this looks sooooo smooth in 60 fps

Great job in getting that unit to work enough to get them through. I always cringe when I see a power washer being used to clean coils. It is so easy to mess up. My favorite tool for power washing dirty coils is the Little Big Shot Fully Adjustable Super Hose Nozzle. That little beast rocks but if you have high water pressure it can bend fins so as always pay attention. I still have a wand like yours too but that little big shot nozzle rocks. I would have loved to have been diagnosing that unit with so many things to test and analyze at least to point, lol.

Great that you documended all the problems for the customer so they could make an informed decision on what to do! Like you said you have to do your job for a big picture diagnoseas ! Great lesson for the younger technicians to learn from! I remember when I first started out my boss would say to me when I would by pass diagnoses steps junior you have alot to learn!

The water pressure is so low. Reminds me of Las Vegas water pressure in the 70s

What a great Sunday

Another great video!

That Viper Coil Brightener is CRAZY insane for cleaning neglected coils. I used it on my A-Coil in my furnace, was seriously caked in dust, hair, and coil corrosion. I knew it was going to cause the coil to etch and erode some fins, but with low air flow; I didn't really care!! I sprayed it on their, let it sit for a good while, and the amount of crap that came out would make you puke!! It was very bright and clean, had some aluminum fin bits come out, but the air flow through the furnace was amazing. The A-coil will probably fail, start develop leaks, but the Viper coil brightener is also very potent, and not something to mess with!! I was very impressed, glad you recommend Viper products, and use it now for seasonal maintenance for the AC units.

Your reliable, they know you'll do a good job and get it done.

SEVERE neglect and abuse, but the healings hands of HVACR was laid upon them... good work sir!

Chris you are the best !

Awesome and informative vids my man 🤘

Good morning Vietnam!!!!

Even though you replaced the complete unit, (troubleshooting) big picture diagnosis is a way to increase your knowledge on any and all A/C units. Like you say, you can never stop learning.

Congratz on 100k!! seems like yesterday you were getting 10,000

You coud charge people to clean those coils for you. It is very satisfying

Man, that unit was in a complete meltdown.

Hi Chris, I was at two supply houses here last week in Johannesburg for some fittings as I need to connect 1/4 flare to pressure sensors, the application is actually test equipment. However, at both places I was the only customer. Never had that, the effect of this situation is felt heavily. Anyhow, about this video. That RTU was tired, and the lack of pm takes years of their lives. So what's new, it's why we have work to do right. But, as you said one has to be thorough and do proper reporting when communicating with the customer. And be sure that if the customer gets a second opinion on your diagnosis that there is not going to be any discrepancies, like you take care to avoid. Nice one, thanks for sharing, Kind regards to all, South Africa

Great work and thanks for the content stay safe and take care

For those who are wondering where to get that water wand from? I actually found the same one at Lowes the other day. Thanks Chris...

Booster pump for the water but using PLEX or any other similar- stiff hose so it dose not collapse under a negative pressure when trying to pull water from the tap faucet. My grandfather taught me this when I was a kid pass on the information.

Dewalt makes a a portable pressure cleaner battery operated up to 550 psi and can switch for regular water may want to look into it for it isn’t as strong as conventional pressure washers part# (DCPW550P1) also you can attach a hose or run it from a bucket. Good Luck

Good morning ,great job!!

When a turd can’t be polished, it’s time to replace the turd with a brand new shiny turd. 🤣 Good job as always. 😀

catching up and making sure all the ads run

Morning brother

Great way to end my day

We don't do these things because they are easy but because they are hard!

I like that you record as you can show the customer what was going on and to fix what has to be done there's lots of cow boy's that will change stuff that don't need it to and rip the customer of till it get to the point of changing service company's to fix the problems

Dewalt just game out with a portable power washer. It's about 5x typical water pressure. Can't beat that with bringing up a bucket of water. Great video thanks!

Low water pressure: At least some pressure washers have a low pressure output mode where they are still pumping water, but only delivering it at 50 or 100 or so PSI. This is often in conjunction with a soap siphon mode to be used for washing cars and the like. If your pressure washer can do that, you could use it as a pump to increase puny water pressure by literally sucking the water out of the low pressure line and delivering it at something usable. If you can't do that, you can probably find a little booster centrifugal pump for $50 or the like at the hardware store. Again, just put it in line with the low pressure hose, and you should have usable water pressure. It is a pain to have to drag that up on the roof, but maybe less of a pain than no water pressure.

Holy smokes see the wires jumping at @9:55 is that from the current :o?

Poor management makes excuses, good managers take good care of capitol equipment. Restaurants are notorious for bad air handlers.

Another great video, thanks

Thank you chris

Nice video

5:24 might get better pressure just pissing on those coils LOL!

That was lame water pressure for sure. Circuit 1 compressor looked like it might have been changed already unless there's something I'm missing. I do residential. It had a totally different terminal lead cover than circuits 2 and 3.

That clicking noise that you're hearing is the internals something's loose and knocking but not causing it to short The only other possibility is if a piece of metal from brazen and something got sucked in somehow and it's small enough to get through the screens or punch the hole through something and is in the discharge hole for the scrolls compressor for the scrolls

Thank you for the video.. A prime example of what problems could arise if regular maintenance is not carried out,, even if it is just cleaning the coils and filters and adjusting or changing belts..

if you are willing to do it there is a way to turn down the pressure washer to turn down the PSI it is just tricky depending on how it is set, but google is your friend.

We worked on kitchen hood cleaning and industrial equipment cleaning,using a dry ice power washer is way faster method,plus you get no secondary waste,no water all over the roof,also dry ice works perfect for cleaning electrical wires without any harms,look it up,if it is not worth the price since you don’t do much cleaning as hood cleaning,you might use steam cleaning machine,it produces less pressure but also less secondary waste and won’t bend anything

Yeah it’s pretty cool up here in Juneau Alaska very few people have air-conditioning lol only Couple times a week in the summer

This unit is an example of the customer not taking care of their equipment. why? Good video.

You are the best 👍

the usual routine great professional work with low water pressure and leaks and bad compressors

Hi Chris, That black hose you are using seems really nice and flexible, much better than a normal garden hose. Can you share what it is/who makes it?

The compressor number 3 has also a bad scroll plate and by the way Chris go and check the overtime show community to see something funny!

I look forward to no cooling calls. Its 19° here in Buffalo

I'm not surprised the client went for full replacement. Two compressors and a TXV are bad, plus the condenser fan motor... A new unit is likely more efficient, and there's a lot of man hours in repairing a RTU that's already running on borrowed time... I'm a huge fan of "repair, don't replace," but sometimes you just gotta do it.

I wear a similar hat. Love it

Viper must give you a kickback for advertising for them all the time lol

Wires on 2nd stage compressor looked like they were twitching.

idk why i watch these videos and find them interesting when i dont even want to do hvac for a living, lol

I like the videos that have the camera further away seem to get a better idea as to the processes , also you may have tried this but take the nozzle off the pressure washer wand and use it as a booster pump on that low water pressure, without the nozzle it would be a bit more powerful stream but not enough to bend the fins. just say'n Great video

That's one dirty bunch of fins ! Yucko ! 🤗

Nice a dancing compresser

For future pressure washing of coil fins - buy a larger orifice fan tip (try Amazon). Your current tip will have a number engraved on it, pick one a few thousandths larger and it will spray with considerably less force/pressure.

Hey Tomorrow can we talk about taking an “approach” reading? As well as the suction line p trap

That whole unit is just hammered shit.

I was so proud just replacing the control board on my HVAC. I could never do any of the other things you do in your videos.

Not related to the content, but yay 4k 60fps!

Id say when that middle compressor was popping and jumping like that it was starting to burn up inside and short out. The wires contracting the way they were with the amp spikes. Prob would of tripped the breaker/blown a fuse if you left it on much longer. Either way that comp was toast.

I could have sworn I saw compressor 2 arcing out.

just wonder how often should we usually have preventive maintenance done on an roof AC unit?

If the tips on the pressure washer are too strong, what if you took the bits off and have a boost of pressure compared to the garden hose but not as much pressure as the tip produces? just a thought! great video as always!

YIKES!!!!! YOU WALKED INTO A HORNETS NEST ON THAT ONE CHRIS.

When I see cond coil cleaner actually foam im scrambling to rinse it off asap . I feel safe when the concentration yields very few bubbles

Could try something like the Dewalt DCPW550P1, It connects to a hose and uses the 20v batteries to increase pressure, Not nearly as high psi as a pressure washer and uses pressure washer nozzles aswell.

Question related to HVACR- what is your normal saturated condensing tempteture should be during low ambient or what tempteture it should not fall bellow, I heard 85 to 105F I want to understand low ambient head pressure control properly what is that magic number it should not fall bellow also one refrigeration tech was telling me you will want a 70 degree F liquid temp going to your TXV for better operation can you explain this a little in detailed way so I dont have ask others thank you.. Thank you.

Good information. Question, are you getting paid for 8hrs diagnostic? I seen customer don't want to pay $75 diagnostic fee if they have to replace system

Damn Chris love how you’re all dressed up for the UV rays, I was on a rooftop for no heat yesterday -2.2f, I need to move to a warmer climate😂

So why is the water pressure so low? Is that one of those California ways to save water?

Before you said it, I was thinking the best course of action was to replace the whole thing.

Yeah baby