I have an option from way back in my years when I was a resi guy. If it’s not hot as balls out… check standing pressure then valve off condenser… come back in 48 hours and put gauges on… if pressure is same open valves and you’ll know what side of the system it’s on. Just a tip for you resi guys coming from me struggling to pin point frustrating micro leaks before moving up to big mf’ing systems.
don't forget to account for it being frozen/blazing hot, from things like no airflow/bad indoor blower, non-condensable contaminates. the pressures may go up or down in real life. now clearly a huge pressure loss is obviously a leak, while pressure gain could have been from frozen to hot(attic) or bad gasses mixed, but that's harder to judge overall.
Whipping the UEI around made me think of the old school sling psychrometers! Everyone has to love leak checking!! Every once in a while you might get lucky and get one of the easy leakers … we all know that’s not likely. At times we split the lineset and braze in access ports and put both sides under heavy pressure of nitrogen. And come back to it to check both sides. It’s not the easiest method but it’s helped us find some micron leaks we probably would have never found otherwise. Sometimes micron leaks on both halves of the system. Keep up the good work guys!
Enjoy watching your channel! Just started in this field about eight months ago and I’ve been watching your videos every day before work. You are one of those guys that has their doctorate in the AC business. I hope to one day you get there too.
"it's a real piece of York", Love Steve Lav. like a big brother, even though he/many blocked/ignore comments(they still seem to read some). OK by me 😉 some may help, other may be random gibberish. 🥳
Mike i finally seen you on sunrise highway when i was going to work I'm not even going to lie it was like an oh shit moment and then i seen the truck later after work i hope one day to shake your hand I'm in the auto trade myself
What did you do with the high pressure switch? Looked brazed on. Leave the switch bypassed or did you put a tee on the exterior liquid line and use an aftermarket pressure switch. I never leave any safety bypassed unless the customer signs a waiver, and i absolutely never leave a furnace limit switch or roll out switch bypassed under any conditions for obvious safety reasons, even if its after hours and I need to open a shop and pay after hours fee. Its either replace the furance limit or no heat for customer on furnace.
Mikey..lm thinking you have a restricted or a kink in the liquid line somewhere. Liquid lines don't ice for no reason. Micro channel coil won't store refrigerant like a copper coil will. Just my thoughts..
Hey Mickey, of Mickey Pipes Plumbing not easy being cheesy. I like your podcast/social media. I guess some of your customers still checking up on you. By the way, Mickey, C-Span 1, 2, 3 it is still hanging low. When you want it again, let me know. What are you talking about biscuit. Love you buddy,jolly good show old boy, God save the King.
@@PipeDoctor may have been what blew the pressure switch to begin with, or a semi closed service valve. if they had actual discharge ports to could see what your discharge pressure is not liquid line pressure. Ive never seen a liquid line freeze up like that from low charge, at least not when it has enough freon to freeze all the way back to the compressor. If they had a bad burnout I wouldn't be surprised if there's wax/winding material stuck in a semi kinked line or even the manifolds on the micro channel 🤷♂️ I've seen 5/16 and 3/8 lines on small 134a system condensors get shellac buildup plugging them from a small piece of braze that buildup and snagged pieces until it completed plugged. Freon pressures will look half decent but your discharge is 200+ degrees and keeps tripping internal overload and if they had a discharge pressure sensor it would trip/weaken it. I work on every kind of commercial and residential equipment around. I've never seen a high pressure switch trip THAT low unless a fan motor failed or a restriction occured. And Ive seen several 20+ year old high pressure peanut switches still working fine as long as the nahcineb
@@PipeDoctor the next slow leaker you get to replace keep the coil and pump it with leak sealer conduct a not so science type experiment. It might be eye opening. If the sealer is good enough it should seal the leaks even though the coil is separated from the system. Place the coil so the sealer will run to those areas of the coil taking. If you use dye based sealer you'll know where those leaks are. If one brand of sealer doesn't work use another until success, time lapse video should be interesting. I've used 2 in field and in this kind of test. *both failed*
Mike I have a question for ya. I have a 3.5 ton AC (oversized a half ton) with a gas furnace. The thermostat is a visionpro8000. The ac normally runs for about 5 minutes before turning off resulting in poor dehumidification. Would adding a delay on make timer in the condenser help increase run times? I already set the ac cycle rate to 1 but that didn't change anything.
Have the static pressure tested, probably to high. The system has to breathe. Oversized unit doesn't help. High velocity overcools too quickly with low dehumidification.
Could always go outside the box and get a humidity sensor installed and a stat that can run on dehumidification to run until your desired humidity but your house will be like a meat locker. 😂🤣😂🤣
by 2:21 I am howling like an pack of banshee's 🤡 frozen liquid line, gas gas blow it out your, uh-oh what gas? **edit, those two "TINY" returns on a 5 ton system? 😏😏😏😏😏
Hay your doing what I do … if you don’t do A this can happen if you do B or C your poring money down the drain or D ! But the bullet and forget your problems for a few years.. wealthy people is replace it middle is can we bandaid it?? An the poor?? We really need it but can’t afford it….😢😢 some times?? I take it in the booty an help them out an?? Sometimes it works in my favor an many times? I get Fk’ed 🤷🏻♂️ life is chances an rolling the dice.. but them was some nasty filters…. But great job on SC
The title of this video is very misleading, you didn’t properly diagnose the unit and having a PDF of options when the system is low on gas doesn’t make anything official. Did you ever think that maybe the filter drier is partially blocked? That would cause it to freeze up, not to mention the high pressure switch is in the discharge line, before the drier and before where you hook up the high side gauges! Wow, it’s almost as if the system looks low on gas at the high side and low side service ports because of a restriction before those points! And you called the previous techs hacks! Did you even see the drier? Did you even try to do a temp drop reading across it? Do you realize that to someone who does this for a living you look like a hack? By the way, I’m just a sales rep for a clothing chain, what do I know?
I have an option from way back in my years when I was a resi guy. If it’s not hot as balls out… check standing pressure then valve off condenser… come back in 48 hours and put gauges on… if pressure is same open valves and you’ll know what side of the system it’s on. Just a tip for you resi guys coming from me struggling to pin point frustrating micro leaks before moving up to big mf’ing systems.
Good looking out
don't forget to account for it being frozen/blazing hot, from things like no airflow/bad indoor blower, non-condensable contaminates. the pressures may go up or down in real life.
now clearly a huge pressure loss is obviously a leak, while pressure gain could have been from frozen to hot(attic) or bad gasses mixed, but that's harder to judge overall.
Why don't they put valves on the evap side so you can isolate it to remove and clean.
I like how you have to touch the ice on the lines to make sure it’s frozen!! 🥶
Mike , really love the options, so fair and upfront.... you da man
Whipping the UEI around made me think of the old school sling psychrometers!
Everyone has to love leak checking!!
Every once in a while you might get lucky and get one of the easy leakers … we all know that’s not likely.
At times we split the lineset and braze in access ports and put both sides under heavy pressure of nitrogen. And come back to it to check both sides. It’s not the easiest method but it’s helped us find some micron leaks we probably would have never found otherwise. Sometimes micron leaks on both halves of the system.
Keep up the good work guys!
Nice troubleshooting as usual ... Thx
👍 that sheet is familiar
7:05 I thought Mikey was getting ready to throw out the first pitch at the Mets game.
😎👍😎👍😎👍
only thing i know of that could cause a liquid line to freeze is a restriction.
I can appreciate a guy who can find a leak…
Enjoy watching your channel! Just started in this field about eight months ago and I’ve been watching your videos every day before work. You are one of those guys that has their doctorate in the AC business. I hope to one day you get there too.
Please don’t
The other tech could not think like a schematic. So they just replaced the condenser. Excellent work.
@@PipeDoctor Thank you for the nice comment.
Hey John, of John Phillips Plumbing. Got your number three wire waiting for you again. Go Navy.
Would replace the liquid line dryer inside the condensing unit
The Ice on the liquid line might be from a restriction
If ya ain't testing...you're guessing.
"it's a real piece of York", Love Steve Lav. like a big brother, even though he/many blocked/ignore comments(they still seem to read some). OK by me 😉 some may help, other may be random gibberish. 🥳
00:04:32 do they have a battery door issue. I See duct tape on measuring device!
I'll be interested in that PDF
Very well handy
So was the high pressure cutoff switch bad?
Mike i finally seen you on sunrise highway when i was going to work I'm not even going to lie it was like an oh shit moment and then i seen the truck later after work i hope one day to shake your hand I'm in the auto trade myself
What did you do with the high pressure switch? Looked brazed on. Leave the switch bypassed or did you put a tee on the exterior liquid line and use an aftermarket pressure switch. I never leave any safety bypassed unless the customer signs a waiver, and i absolutely never leave a furnace limit switch or roll out switch bypassed under any conditions for obvious safety reasons, even if its after hours and I need to open a shop and pay after hours fee. Its either replace the furance limit or no heat for customer on furnace.
Why not just replace the switch if it’s malfunctioning, makes sense to me
Another well diagnosed and well-done job Mike. Hacks bringing you stacks. Make the trades great again. #LoveBosch #LetsGoBosch
Mikey..lm thinking you have a restricted or a kink in the liquid line somewhere. Liquid lines don't ice for no reason. Micro channel coil won't store refrigerant like a copper coil will. Just my thoughts..
Clogged dryer if equipped also?
Love your videos, why did
You go to the small vans
Only I drive the small one.
Hey Mickey, of Mickey Pipes Plumbing not easy being cheesy. I like your podcast/social media. I guess some of your customers still checking up on you. By the way, Mickey, C-Span 1, 2, 3 it is still hanging low. When you want it again, let me know. What are you talking about biscuit. Love you buddy,jolly good show old boy, God save the King.
I always learn watching your video great gluon mike. How do I e mail to get a sticker or those 5 things ?
Yeah some leaks you can find in a hour but there are plenty of times it takes a lot longer for sure. Leak searches suck lol
Almost looks like plugged up filter dryer or someone didn't open the.h high side service valve all the way
@@PipeDoctor may have been what blew the pressure switch to begin with, or a semi closed service valve. if they had actual discharge ports to could see what your discharge pressure is not liquid line pressure. Ive never seen a liquid line freeze up like that from low charge, at least not when it has enough freon to freeze all the way back to the compressor. If they had a bad burnout I wouldn't be surprised if there's wax/winding material stuck in a semi kinked line or even the manifolds on the micro channel 🤷♂️ I've seen 5/16 and 3/8 lines on small 134a system condensors get shellac buildup plugging them from a small piece of braze that buildup and snagged pieces until it completed plugged. Freon pressures will look half decent but your discharge is 200+ degrees and keeps tripping internal overload and if they had a discharge pressure sensor it would trip/weaken it. I work on every kind of commercial and residential equipment around. I've never seen a high pressure switch trip THAT low unless a fan motor failed or a restriction occured. And Ive seen several 20+ year old high pressure peanut switches still working fine as long as the nahcineb
What's the success rate on the sealant?
@@PipeDoctor the next slow leaker you get to replace keep the coil and pump it with leak sealer conduct a not so science type experiment. It might be eye opening. If the sealer is good enough it should seal the leaks even though the coil is separated from the system. Place the coil so the sealer will run to those areas of the coil taking. If you use dye based sealer you'll know where those leaks are. If one brand of sealer doesn't work use another until success, time lapse video should be interesting. I've used 2 in field and in this kind of test. *both failed*
I'll take that challenge. I can find a leak in under an hour.
Compressor does not compress gas only works without pressure
Mike I have a question for ya. I have a 3.5 ton AC (oversized a half ton) with a gas furnace. The thermostat is a visionpro8000. The ac normally runs for about 5 minutes before turning off resulting in poor dehumidification. Would adding a delay on make timer in the condenser help increase run times? I already set the ac cycle rate to 1 but that didn't change anything.
Add some outside air to the return.
Lower blower speed from Hi to medium Hi…
Have the static pressure tested, probably to high. The system has to breathe. Oversized unit doesn't help. High velocity overcools too quickly with low dehumidification.
Could always go outside the box and get a humidity sensor installed and a stat that can run on dehumidification to run until your desired humidity but your house will be like a meat locker. 😂🤣😂🤣
Can I have the PDF ?
im subscribed shheessshhh stop yelling at me, good job! looks like that unit needs therapy
78.1 =79 mikey pipes 23'
Looks like Man Baby got removed from his apprentice position. Or, he is still sleeping 18 hours a day. No Bueno.
@@PipeDoctor The Shabbos nap that lasts all week….Rinse and repeat.
More stacks
I would never just add refrigerant, it’s putting a plaster on a gun shot. Amateurs
by 2:21 I am howling like an pack of banshee's 🤡 frozen liquid line, gas gas blow it out your, uh-oh what gas?
**edit, those two "TINY" returns on a 5 ton system? 😏😏😏😏😏
Looks like someone’s needs a duster and a wet rag and some motivation to clean…..
Hay your doing what I do … if you don’t do A this can happen if you do B or C your poring money down the drain or D ! But the bullet and forget your problems for a few years.. wealthy people is replace it middle is can we bandaid it?? An the poor?? We really need it but can’t afford it….😢😢 some times?? I take it in the booty an help them out an?? Sometimes it works in my favor an many times? I get Fk’ed 🤷🏻♂️ life is chances an rolling the dice.. but them was some nasty filters…. But great job on SC
Great job, I've been watching your videos a lot and looking forward to your visit to my house, I'll invite you for a beer!😆😁😍
@@PipeDoctor Should we have a party, sir?
"I can find a leak and fix it in an hour" I've heard that a lot and they never can prove it, just talk at that point.
“If You’re Not Testing, You’re Guessing” 🤪👎 Only a Hack and a Dumb Jack 🤪 would Replace a Compressor without Confirming the Compressor was Bad🤪👎
First
The title of this video is very misleading, you didn’t properly diagnose the unit and having a PDF of options when the system is low on gas doesn’t make anything official. Did you ever think that maybe the filter drier is partially blocked? That would cause it to freeze up, not to mention the high pressure switch is in the discharge line, before the drier and before where you hook up the high side gauges! Wow, it’s almost as if the system looks low on gas at the high side and low side service ports because of a restriction before those points! And you called the previous techs hacks! Did you even see the drier? Did you even try to do a temp drop reading across it? Do you realize that to someone who does this for a living you look like a hack? By the way, I’m just a sales rep for a clothing chain, what do I know?
@@PipeDoctor good point, congrats on the following, I’m subscribed and am looking forward to more of your videos!