วีดีโอ

Hello sir, can i replace the green varistor 14v471k to the blue 14d621k varistor?

Hi. I find another kind of communication in multi-split equipment. I find that the component that manages communication is the MAX 13085E. It works with the rs 485 bus, the voltage is around 5 Volt. Could you explain this system please? Thank a lot for your work.

9+ hours of training for free? Thank you so much. Can anyone ask for more than this?

Thank you.

Aka pump-down. Thank you.

Hi ! thanks for the information . I live in France and a lot of incompetent people . Have a nice week-end ! Bye

That looks like shit..

Many thanks to this person for these incredible videos. Terrific explanation and understanding. Good morning from GREECE

I want learn how to fix furnace control boards

Don't they have to look through a possibly 'dirty' windscreen? How does that work?

Hi ! Thanks from France for this new video . Have a nice week-end .

thank you very much sir for sharing... god bless.

Thanks from France, for all your videos . Have a nice day .

Thank you.

Thank you.

Spelling correction just FYI. “Training”. Thank you for your videos.

Hello sir ,is this oscilloscope feinsi 100mhz works well with AC inverter repair transistors and igbt ?Thank you

Thank you.

Thank you!

Muy buenos los videos, los tenes en español? Saludos de Argentina

Nicely explained .. Thanks very much ..

Promo'SM ❤️

awfull jjob

I’m learning about soldering control boards and this video is gold. My question is out of all this boards what is the number 1 and 2 issues you find? And how do you check a relay without removing it?

On 220V system voltage you should use 1/100 probe!

It’s the same price, safer and quicker to order from that place named after a river in the USA. I’ve ordered a lot in the past from Ali, but now their prices have gone up a lot on certain items.

Great information.

Awesome information for us hvac techs setting up an electronics lab. Thank you. Keep up the good videos with detailed explanations.

This is what us service techs need in the USA, where these high efficiency mini split heat pumps are finally getting more popular. Thank you.

These AI audio tracks remind me of voice overs for Godzilla shows.

Gonna re watch this and keep goin

Dude u r great🎉

Great. HVAC pro, looking forward to learning more about the troubleshooting process and repairing of mini split PCB’s. They are finally getting popular here in the USA. Many are being installed but none that I know of can repair them. We just always recommended a new one every 7 to 10 years. That’s kind of wasteful if you ask me. Thank you!

Thanks.... watching frim rge Philippines with ❤

Wow that's awesome,, thank you for sharing this ideas,, very interesting analysis.

The capacitors smooth out the ac component .My guess is you have to check 15 vdc with a oscilloscope. If a ac ripple exists it means the capacitor i defective

R,

So how does checking for 15 V tell you anything about the capacitors?

'PromoSM' 😁

7805 is a 12V regulator?

Don’t some inverter compressors or variable speed blowers/fans run on pulsed DC?

Thanks. Easy to understand

Good explanation But this way you cannot determine it 100%good or not.

Pls Sir is there any thing like IPM Tester I can buy to test IPM after purchase before soldering it ?

Thanks a lot I have finished watching all expecting more on IPM testing (onboard and offboard testing)

I leaned a lot from you. Practical way of testing components. And how a component works in plain English. Best wish for New Year's

😮😮😮

Best gift for 2024... Thanks a million times Sir... God bless You Sir

Thanks

Good explanation