Hey Mitch. Ive had in the past a UO on a daikin fault.had a bad eev. It would run fine in heating but every now and than would pump down into vacuume in cooling mode but not always. Would run a few weeks than fault out Replaced the valve and has been fine since.

Mitsubishi Electric

spit on ya finger keep the silicon off ya finger

the shit we have to buy back from china is embrassing dude fuk the shit we have to deal with on ya Mitch.

Mitch so many questions my ocd with ya hoses fuk does me head in haha was that house open completely just asking,condensing unit to close to wall.i see alot of issues as soon as you pulled up good thinking start from scratch.

I've heard lots of issues with copper pipe in the US too. Some type of reaction causing pin hole leaks. One gent only has it happen on the white insulation, no issues with the black stuff.

Thanks I learnd something new thanks.

How did they convert from ductless to ducted on an existing house? Also, I'd be very interested in seeing more detail about the controller for this system.

Beautifully done! Let us hear the unit's running sound. I like to hear how quiet those units are!

Can you put more narration into your videos? I'd like to know more about what you're doing and why. The background music is nice, but I want to learn more about the whole process.

I use Klein Tools a lot.

Did you purge the blue hose before charging? I saw you purge the yellow hose, maybe you purged blue hose off camera. Also, instead of removing the VCRT after pulling vacuum, you could just leave it on and connect hose from bottle of gas to VCRT and charge, then put core back in.

I use Trace a Gas with the CPS electronic leak detector and it works very well, however it would go crazy with a leak this big and I, like you wouldn’t have bothered using it had I been able to hear it as loud as you could. I also would have done exactly as you did in advising the customer but true, that unit is on it’s last legs and I hate whenever I do a repair like that and it fails 3 months down the track and the client reminds me how much they paid 3 months back and it has already failed again.. That’s why the replacement option gets pushed onto customers..

Had mine since new eight years now. Works exceptionally well. But that's just me comparing with the reverse cycle ducted systems I installed back in the 1970s. The E9 code is coming up often lately, and I'm becoming suspicious of the life expectancy of compressors in these systems running R412 refrigerant. I restart it by pressing the mode selection button and it then returns to run mode. No problem for anything from a few days to a few weeks, then it does it again.

If you hold orange meter button while rotating center knob to on, the meter will not time off/out.

How did you get that in recovery mode from indoor controller ?

Hey Mitch, a somewhat parallel issue with reactive chemicals in electrical engineering. In the 60's or 70's there was an electrical cable insulating material used worldwide that after a number of years caused a chemical reaction with the copper conductors. It's a greenish stain/goo. I only came across this with a house renovation. Fortunately it does'nt cause insulation breakdown, just a massive disgusting stain, especially in wall switches, light fittings, where you don't really want to see and deal with it. Funnily enough, in the era before cheap chinese products invaded the landscape.

Man how would you go about maintenance or possible leaks/faults in the future. Appartment scare the shit out of me

So this tells you if the windings in the eev is good?

Did standing sst vs ambient temp match when you first put the gauges on?

This outdoor Mitsubishi AC is my childhood because my grandfather in Botswana, Africa used to have it for his living room.

Just test the compressor windings? Then you will know if the compressor is stuffed?

Did you not have to pull a vacuum on the recovery tank? Or have too? In the US it’s best to always pull one.

Goodjob mate. Made indonesian😊

Good pickup! In future though the side port on the VC2G is meant for a service port as it still has a schrader core, you’re effectively just evacuating as if you hadn’t pulled the cores from the unit service valves (assuming you’ve left that schrader core in on the side of the VC2G). Remove the stem and the schrader core from the top of the tool and attach your vacuum hose to the top of the VC2G, then there were will be uninterrupted flow.

Hey mate, good on ya for putting yourself out there on the channel. I’m curious if you know if there is a difference between isolating the unit whilst it’s running to get the EEV in an open position and putting the unit in recovery mode to get the EEV to open. When I’ve talked with tech support in the past for other brands, purely isolation under full ramp is fine to be able to recover all the gas. Also your 200g of extra recovered ‘gas’ won’t be nitro. It’s lighter than air. Your nitro bottle will have a practically identical weight when it’s empty to when it’s full.

How do we know which units we hv to put on recovery mode while reclaiming it.

Hey Mitch just a quick question mate how much should be the operating pressure on discharge n suction line of the unit, to make sure if the units refrigerant gas is fine.

Bro was that a battery operated Milwaukee vacuum pump!?

Great video. Very informative and interesting.

Whenever I'm worried, it's caused by trivial things. Daikin's closing valve is characterized by its brittleness. With nitrogen pressurization, it may enter the outdoor unit. It's a lot in Japan. The high pressure is high during the test run. 4.0MPa nitrogen pressurization is not recommended.

Hey mitch, can you put the unit into recovery mode from the outdoor pcb? . Im pretty sure if you vscuum from all available schrader fittings at the outdoor unit, you ll be good to go with evacuation/recovery..

I wonder how much this guy actually saved using a second hand unit. His paid to have it installed and gas added and then twice to have it vaced and re gassed. Now I know why the fridgy guys laugh on market place listings for second hand units.

I usually weight recuperat station as well, there going 200 grams

Nice work as usual Mitch.

So Ive just provided you with a few more views across you videos lol but noticed you didn't run a vac stat back in the day and vac through gauges/1/4 lines? Seeing you are more evacuation informed do you wish you knew what you knew now back in the day lol

I’ve had exact same issue before but took a while to figure out as I didn’t know those models had to go into recovery mode but got there in the end. When the video started I was like I bet it’s got bloody nitro in it from when they pumped it up previously.

Hey Mitch can you do a video on recovering, vaccuming and nitro for apprentices. Cheers

A good diagnosis and repair on the leak! This video reminded me of a problem that occurred with our Daikin ducted unit from 2006, but was installed in July of 2007. In 2015, my dad thought he would get a technician out to do a check up on the unit, but the technician instead made a leak in the outdoor unit, which caused the unit not to heat correctly as it would defrost every 30 minutes, before throwing up an error code, so we had to use an old fashioned fan heater to (sort of) heat the area we were in which was the kitchen. Dad then got another company out, who was worse than the previous and they proceeded to remove the outdoor unit because they thought the unit was done for. Dad made them put the unit back in and repair the leak, and nine years later is still heating and cooling like day one. I was only 10 when this happened, but still remember everything that happened!

Hi great video. Do you mean that the earth wire was live?

Hey Mitch Loving the vids keep it up When removing you miron gauge off the unit wont in pull in air with that setup

Electronic leak detectors definately have their place, when a unit is dead flat there's no use in using one. Systems with gas and an active leak I personally always have better luck with the electronic and then narrowing it down with bubbles is how I do it. Just need to make sure you have a good quality detector, Good video 👍

Gauge line chilling in the dirt 😅

you had non-condensable's nitro trapped in the system. the low hz and pressures pointed in that direction, nice work.

Hey Mitch, watching your video again. Do you think it was the new Milwaukee vac pump that made it so quick vacuuming down? Or the fact you had a bigger hose and connected straight to the pump not through the gauges?

Nice work as usual Mitch. That vac set-up is mint! #betterhvac

What was the tool called that you used for vacuuming down

Do you have to purge your lines before evac all the r32 into the recovery tank?

Hey Mitch. I’ve got the appion core control tools, but the (refco ?)ones you use look to have an ability to be back seated and hold the refrigerant in the hoses after removal, is that right?

Mitch great fix and observations on following the exact process with the technical reasoning. Lucky for the customer it only took the third technician to sort it out or the penny wise and pound foolish approach could have really cost him with the second hand unit. Great to get a good deal but if you are the customer and don't know someone like Mitch that understands Daikin and challenges with second hand products then best to install brand new with a professional.