I am proud of you for trying to commission the equipment as a non professional. If you had a professional doing this, we could have addressed this quickly and usually we should be doing nitrogen pressure testing before letting the refrigerant out. Unless mr cools service valves dont allow for that? Either way good on ya and good share. Not sure if you can blame qc though, some things do fail from factory. U r lucky
Welcome to Mr Cool! All the units are made in China. I had a soldered joint leaking at the reverse valve, and lost all my freon. At least they honored the warranty and sent me out a new condenser. But it took months to contact them. Apparently soldering is not done very well at the factory in China. No quality control
@@Jon-hx7peyeah, carrier-midea, midea rebranded, gree rebranded, aux rebranded. I believe Mitsubishi is made in Thailand, similar to Daikin, Thailand and Malaysia (or Czech)
I think the line sets are pre-charged, so you probably lost all your refrigerant, that’s why you don’t hear/ see it leaking. You could hire someone to repair the leak, pressure test with nitrogen and pull a vacuum and recharge.
Precharge lines doesn’t mean they’re filled with refrigerant, they are just purged and ready for install, the refrigerant is still all contained within the outdoor unit.
Don't do anything more, just tightened the service valves and call a professional to remove and reinstall your line sets. Turn off the unit and do not restart till it's repaired.
That is a manufacturing defect and that's why i don't like these pre-made line sets. These are good if they come properly done from factory but even then extending or trimming the pipe requires extra work. Just make your own flares and tight it while testing for leaks.
Totally agree with you @Kuntal Ghosh, planning to do my own flares when installing the next unit. It will look a lot neater looking too with lines having the proper length versus having to hide the excess somewhere
I love all the people that take this as a reason that people shouldn't be allowed to do DIY work. The fact is that this was a very easy fix at the factory if MrCool would of just tested their work.
Most HVAC companies that service minisplits won't touch DIY systems and they have no idea what MrCool is. They only consistently work on Mitsubishi, Fujitsu, LG, Senville.
hmm, what's that saying, not everything that glitters is gold? I don't consider MrCool the golden product it's high budget marketing makes it out to be... it's more like bronze Definitely has it's place and is perfect for smaller applications, like getting cheap AC into your garage or bonus room, but you'd probably want a more bespoke setup for your home, i.e. custom length linesets
This is why I hop mr cool will not stick to their warranty ONLY if a professional hvac personal installs the system. They need to go cases by cases and realize they sent a defective line set out. Good luck
That why you vacuum check all your lines before releasing any refrigerant and know most of the lines come vacuumed sealed not charged. The smaller single do it urself units come with refrigerant charged lines, thats different. At least the multi ones I did came vacuumed sealed🤔
This type of stuff happens from time to time when your in the HVAC field. I would rather have the professional models vs the DIY models just cause I can easily fix them. That can also be fixed. I know it's new but sometimes you roll with the punches
@@neppy5 OK... this now means that air was in the lines... i would now recommend removing all the refrigerant,pulling a vacuum on the system and then add new fresh refrigerant.. Not sure how much air circulated into the other components??
I have only seen the unit charged with refrigerant, not the lines. After installing the lines (and doing a pressure / vac test on the lines) the refrig is released into the lines and the system can be run. Anyway, he needs to fix the leaks before vac/recharge or it is a waste of time.
Not worth it at all. If this is your only fix for this problem than you just don't understand the problem. This could of leaked out if it was a one way split.
Single zones are usually more efficient, on better brands a lot of the cost increase for me when I install them is the stands and extra wiring ect. My state gives better rebates for the single zones and if you can locate the indoor and outdoor closer it can make the cost pretty close.
overall yes, got the mess sorted out about a month later and have been using the unit almost daily for cooling and heating. I love how quiet it is and how well it has been working, definitely a big upgrade from window ACs. Heating mode isn't sufficient to carry you through an NY winter but it's good enough for the 45 degree and up days. It's been 90's all week here and the house is very comfortable. If I could go back and do it over, I would get it again, just not from MrCool. I would go with other brands and cut and flare the linesets myself and roll the dice. If anything went wrong I would call a pro to fix it using the difference in cost. Hoping to get at least another 8-10 seasons out of this unit, time will tell. Also I wouldn't mount it, I would put it on the floor as the vibration it creates and transfers to the building is pretty significant. Thankfully it's just to the garage but if it was a bedroom, someone would be pretty unhappy.
Sorry but this stuff happens. Could of happened to anyone. Try to get Mr. Cool to pay for the fix but even if they don't you have to get it fixed. My HVAC man would fix it in a second and you would be done with the problem.
As a professional... CHINESE JUNK ! this system is poorly made.. very limited system. No dealer network.. no real distributor network.. poor warranty.. little to no parts availability... does this sound like a wise investment?
@@prestonclarke727 Mitsubishi/ fujitshu.. 12 yr warranty... great dealer network... great distributor network .. great manufacturer support.. great parts availability the only question is the company you deal with. Call Mitsubishi/ fujitshu they can recommend a diamond dealer. But remember Mitsubishi/ fujitshu is more expensive for a reason! P.s ... I never saw a Chinese made mini split last for more than 6 yrs... in my 25 yrs... p.s.s. Chinese minisplits are not allowed in commercial/industrial applications
@@Tomcoker1952 no.. they will not give pricing... ask them for the nearest diamond dealer near you(customer service ).. or.. they will have a dealer location app on thier web site.. or.. google , Mitsubishi dealer near me! You will have the answers you seek.
I know it cost a ton to recharge all of the refrigerant that you let leak out of there. Those line sets are cheaply made soft copper. When you start having issues with them you only have 2 options. 1. Complete a custom cut and flare on the line past the damaged area or 2. Do what I did and buy separate higher quality stand alone lines and connectors. Depending on the model unit you got they can be expensive but again those line sets are cheaply made that comes with them and they are only good if you are doing a singled direct L or Z angles and carefully at that. I purchased the non DIY model which was still well over $1K single zone and had issues and didn't waste my time. I immediately went and paid another $300 for completely different type ( but compatible ) high quality commercial lines and fittings. Also, you couldn't have done the vacuum before releasing the refrigerant because that would have exposed that leak immediately. Nevertheless, judging by the fittings that is a DIY unit so I'm sure you got the replacement unit from them for the issue or at least I hope you did.
Obviously you didn’t vacuum your lines properly before opening you freon lines. You are suppose to use nitrogen o pressure test your system.it’ll cost you to call a hvac tech to repaire and re-charge
the system takes a total charge, not sure what kind of metering device is behind each valve but all the refrigerant is combined in the outdoor condenser and distributed to whichever head is calling usually with an EEV. Shutting the service valve on the head that is leaking will fix the issue but not because they each have their own refrigerant.
You can’t beat a person at their own trade! It takes experience to do this! Not to mention a license! This is not diy! Hire a PROFESSIONAL! I loved this one!
So called "professionals" are scammers. A license proves absolutely nothing. Installing these units is a simple DIY project. We are finally liberated from the scams of the HVAC techs.
To be fair no license is necessary, some skills are needed, don't make more out of it. The guy seemed to do a decent job installing. He should had a pro ck and start it up, he justed saved a bunch of money and you know it. Good job dude!
These systems come pre charged lines. No vacuum pump or nitrogen test is done. They are designed to just be connected and opened up unlike all professional grade units like mitsubishu Bryant or Fujitsu
this is why i got my system professionally installed. 1 year parts and labor so i have one year for the system to fail due to a manufacturing defect or an install error. and it will be fixed at no additional cost.
there is a reason why in most states this is a licensed trade. this minor problem with a DYI pre-charged line set turned in to a potential major ooopsy. now at best you lost most of your charge, a pro is going to removed the charge, brase the pipe pressure test, then evacuate and recharge, you found out DYI is not advised and not allowed in some states. dont blame manufacture's with common defects that us in the trade face and correct all the time, even with some times new stuff. also keep in mind that if that leak was small and kept you cool in the summer and then you rely on the same system to heat your home, what might that jack wad pickle look and feel like.
I assume they will just say you put a strain on the lines that caused the leak. If it was a defect the lines were probably void of any charge we h we my you got them. Just be like the inside unit that has no charge and can contaminate the system on all installs. Warranty is not even any good as too many limitations on keeping it in warranty. See no warranty on line sets anyway.
thankfully they believed me and sent out a replacement line (albeit a used one). I was able to get up and running once a local hvac tech came out and recharged the system, has been good since
yes, they basically wanted to send me replacement parts for the two zones affected (2 heads + 2 linesets). After much pleading with them, they agreed to let me hire a local HVAC tech to evacuate, pressure test, vacuum, and recharge the system... and they covered the cost for that. I had to produce an estimate from the tech for approval before work began. System has been working well since then, has no problems handling 90+ degree days.
I am proud of you for trying to commission the equipment as a non professional. If you had a professional doing this, we could have addressed this quickly and usually we should be doing nitrogen pressure testing before letting the refrigerant out. Unless mr cools service valves dont allow for that?
Either way good on ya and good share. Not sure if you can blame qc though, some things do fail from factory. U r lucky
I thought the lines were pressure tested b4 they left the factory.
Yes, they are supposed to test the line.
Welcome to Mr Cool! All the units are made in China. I had a soldered joint leaking at the reverse valve, and lost all my freon. At least they honored the warranty and sent me out a new condenser. But it took months to contact them. Apparently soldering is not done very well at the factory in China. No quality control
it's all made in china even from major brands for mini-splits
@@Jon-hx7peyeah, carrier-midea, midea rebranded, gree rebranded, aux rebranded. I believe Mitsubishi is made in Thailand, similar to Daikin, Thailand and Malaysia (or Czech)
I think the line sets are pre-charged, so you probably lost all your refrigerant, that’s why you don’t hear/ see it leaking. You could hire someone to repair the leak, pressure test with nitrogen and pull a vacuum and recharge.
Precharge lines doesn’t mean they’re filled with refrigerant, they are just purged and ready for install, the refrigerant is still all contained within the outdoor unit.
Don't do anything more, just tightened the service valves and call a professional to remove and reinstall your line sets. Turn off the unit and do not restart till it's repaired.
That is a manufacturing defect and that's why i don't like these pre-made line sets. These are good if they come properly done from factory but even then extending or trimming the pipe requires extra work. Just make your own flares and tight it while testing for leaks.
Totally agree with you @Kuntal Ghosh, planning to do my own flares when installing the next unit. It will look a lot neater looking too with lines having the proper length versus having to hide the excess somewhere
I love all the people that take this as a reason that people shouldn't be allowed to do DIY work. The fact is that this was a very easy fix at the factory if MrCool would of just tested their work.
amen!!!
Most HVAC companies that service minisplits won't touch DIY systems and they have no idea what MrCool is. They only consistently work on Mitsubishi, Fujitsu, LG, Senville.
A year later, what are your thoughts on Mr. Cool stuff?
hmm, what's that saying, not everything that glitters is gold? I don't consider MrCool the golden product it's high budget marketing makes it out to be... it's more like bronze
Definitely has it's place and is perfect for smaller applications, like getting cheap AC into your garage or bonus room, but you'd probably want a more bespoke setup for your home, i.e. custom length linesets
This is why I hop mr cool will not stick to their warranty ONLY if a professional hvac personal installs the system. They need to go cases by cases and realize they sent a defective line set out. Good luck
I have the same problem too with line set … did get a new line set ?
You can run the others but one leaking don't use
Ive seen a couple leak thats happens when you get precharged line instead of vaccum lines
It’s completely unacceptable,Very sad!
That why you vacuum check all your lines before releasing any refrigerant and know most of the lines come vacuumed sealed not charged. The smaller single do it urself units come with refrigerant charged lines, thats different. At least the multi ones I did came vacuumed sealed🤔
Mr Cool DIY line sets are pre charged as is the evaporator and condenser/inverter. You can not pull a vacuum on the line set, or anything else.
Wait till you have a problem with it, Mr cool will ask you to send an email😂 and then another then another
So you were surprised by poor quality control on a cheap made in whatever system? Hope they made it right for you!
How long did take to get a new line from MRCOOL ?
This type of stuff happens from time to time when your in the HVAC field. I would rather have the professional models vs the DIY models just cause I can easily fix them. That can also be fixed. I know it's new but sometimes you roll with the punches
That unit seems awfully close the house
This is music to our licensed contractor ears!
That's why I will not install that junk. Mitsubishi and Durastar equipment only for me
Are those line sets pre-charged with refrigerant? the DIY quick connect type?
yup! only ones that offer a DIY warranty that’s why i went with them
@@neppy5 OK... this now means that air was in the lines... i would now recommend removing all the refrigerant,pulling a vacuum on the system and then add new fresh refrigerant.. Not sure how much air circulated into the other components??
I have only seen the unit charged with refrigerant, not the lines. After installing the lines (and doing a pressure / vac test on the lines) the refrig is released into the lines and the system can be run. Anyway, he needs to fix the leaks before vac/recharge or it is a waste of time.
The unit is pre-charged but the line sets should be pre-vacuumed (but there could be some/a bit of refrigerant in the line sets if it's not vacuumed)
I never use multiple zones in mini splits. I would rather use 3 separate.. costs more. Worth it.
Not worth it at all. If this is your only fix for this problem than you just don't understand the problem. This could of leaked out if it was a one way split.
Single zones are usually more efficient, on better brands a lot of the cost increase for me when I install them is the stands and extra wiring ect. My state gives better rebates for the single zones and if you can locate the indoor and outdoor closer it can make the cost pretty close.
Close the valves on both ends, and replace the line
Are you still happy with the unit now?
overall yes, got the mess sorted out about a month later and have been using the unit almost daily for cooling and heating. I love how quiet it is and how well it has been working, definitely a big upgrade from window ACs. Heating mode isn't sufficient to carry you through an NY winter but it's good enough for the 45 degree and up days. It's been 90's all week here and the house is very comfortable. If I could go back and do it over, I would get it again, just not from MrCool. I would go with other brands and cut and flare the linesets myself and roll the dice. If anything went wrong I would call a pro to fix it using the difference in cost. Hoping to get at least another 8-10 seasons out of this unit, time will tell. Also I wouldn't mount it, I would put it on the floor as the vibration it creates and transfers to the building is pretty significant. Thankfully it's just to the garage but if it was a bedroom, someone would be pretty unhappy.
Sorry but this stuff happens. Could of happened to anyone. Try to get Mr. Cool to pay for the fix but even if they don't you have to get it fixed. My HVAC man would fix it in a second and you would be done with the problem.
As a professional... CHINESE JUNK ! this system is poorly made.. very limited system. No dealer network.. no real distributor network.. poor warranty.. little to no parts availability... does this sound like a wise investment?
i saw the warranty is 5 year parts and 7 year compressor, is that not good? What brand would you recommend im looking into getting one
@@prestonclarke727 Mitsubishi/ fujitshu.. 12 yr warranty... great dealer network... great distributor network .. great manufacturer support.. great parts availability the only question is the company you deal with. Call Mitsubishi/ fujitshu they can recommend a diamond dealer. But remember Mitsubishi/ fujitshu is more expensive for a reason! P.s ... I never saw a Chinese made mini split last for more than 6 yrs... in my 25 yrs... p.s.s. Chinese minisplits are not allowed in commercial/industrial applications
@@Blitzkrieg.u812 i contacted Mitsubishi in June to ask for a quote for a multi zone mine split. Still waiting
@@Tomcoker1952 no.. they will not give pricing... ask them for the nearest diamond dealer near you(customer service ).. or.. they will have a dealer location app on thier web site.. or.. google , Mitsubishi dealer near me! You will have the answers you seek.
U are .going to pay thru your nose $5k to $10k
I know it cost a ton to recharge all of the refrigerant that you let leak out of there. Those line sets are cheaply made soft copper. When you start having issues with them you only have 2 options. 1. Complete a custom cut and flare on the line past the damaged area or 2. Do what I did and buy separate higher quality stand alone lines and connectors.
Depending on the model unit you got they can be expensive but again those line sets are cheaply made that comes with them and they are only good if you are doing a singled direct L or Z angles and carefully at that.
I purchased the non DIY model which was still well over $1K single zone and had issues and didn't waste my time. I immediately went and paid another $300 for completely different type ( but compatible ) high quality commercial lines and fittings.
Also, you couldn't have done the vacuum before releasing the refrigerant because that would have exposed that leak immediately.
Nevertheless, judging by the fittings that is a DIY unit so I'm sure you got the replacement unit from them for the issue or at least I hope you did.
Not really, 410a is pretty cheap
Mitsubishi makes the best mini-splits.
yepp, and they know that and charge accordingly 💰💰💰
Only they very expensive,,,
Obviously you didn’t vacuum your lines properly before opening you freon lines. You are suppose to use nitrogen o pressure test your system.it’ll cost you to call a hvac tech to repaire and re-charge
Can't vacuum the lines they come precharged
All others will work like the should they run on different freon each one has it own freon
the system takes a total charge, not sure what kind of metering device is behind each valve but all the refrigerant is combined in the outdoor condenser and distributed to whichever head is calling usually with an EEV. Shutting the service valve on the head that is leaking will fix the issue but not because they each have their own refrigerant.
I have one just like nothing but problems spent lots on money for repairs
Comment ça fonctionne ?
You can’t beat a person at their own trade! It takes experience to do this! Not to mention a license! This is not diy! Hire a PROFESSIONAL! I loved this one!
So called "professionals" are scammers. A license proves absolutely nothing. Installing these units is a simple DIY project. We are finally liberated from the scams of the HVAC techs.
To be fair no license is necessary, some skills are needed, don't make more out of it. The guy seemed to do a decent job installing. He should had a pro ck and start it up, he justed saved a bunch of money and you know it. Good job dude!
You will just have to fix the line on the one leaking an ad freon for that side have havcc guy come take out freon an put new in when line is fixed
Always pressure test with nitrogen then vacuum then open service vales
These systems come pre charged lines. No vacuum pump or nitrogen test is done. They are designed to just be connected and opened up unlike all professional grade units like mitsubishu Bryant or Fujitsu
And nitrogen will push through the valve and mix with the refrigerant.
Trolling the guy doesn’t know what he is doing 😂😂😂😩. How do you hear a leak?
U can hear large leaks lol. It will hiss like any air leak if u have ever worked on bicycle tires.
In some extreme cases u will see ice forming or gas mist coming from the leak if the pressure is too high. That happens if the liquid line has a leak.
Update?
We have one like that just don't use that inside unit
this is why i got my system professionally installed. 1 year parts and labor so i have one year for the system to fail due to a manufacturing defect or an install error. and it will be fixed at no additional cost.
How much did that cost
@@garys6898 for my entire house approx 38,000
@@kizunadragon9 I spent like 4k so far
@@kizunadragon9 I'm getting one more unit, so I'll be at 5500. If one of these break at this price it's nothing to replace
@@kizunadragon9 $38,000 Usd? There is no way that's worth it unless you have an enormous mansion. They're air conditioners.
long story short. Never use these quick connect bullshit. Too many possibilities for leaks.
there is a reason why in most states this is a licensed trade. this minor problem with a DYI pre-charged line set turned in to a potential major ooopsy. now at best you lost most of your charge, a pro is going to removed the charge, brase the pipe pressure test, then evacuate and recharge, you found out DYI is not advised and not allowed in some states. dont blame manufacture's with common defects that us in the trade face and correct all the time, even with some times new stuff. also keep in mind that if that leak was small and kept you cool in the summer and then you rely on the same system to heat your home, what might that jack wad pickle look and feel like.
I assume they will just say you put a strain on the lines that caused the leak. If it was a defect the lines were probably void of any charge we h we my you got them. Just be like the inside unit that has no charge and can contaminate the system on all installs. Warranty is not even any good as too many limitations on keeping it in warranty. See no warranty on line sets anyway.
thankfully they believed me and sent out a replacement line (albeit a used one). I was able to get up and running once a local hvac tech came out and recharged the system, has been good since
Any updates from MrCool?
yes, they basically wanted to send me replacement parts for the two zones affected (2 heads + 2 linesets). After much pleading with them, they agreed to let me hire a local HVAC tech to evacuate, pressure test, vacuum, and recharge the system... and they covered the cost for that. I had to produce an estimate from the tech for approval before work began. System has been working well since then, has no problems handling 90+ degree days.
@@neppy5 sad you had to plead...
So did the HVAC tech replace anything? Or confirm your leak?
@@neppy5is the problem fixed?