There is a rumor going around these days that a current air conditioner technician is telling you about a fraud technique.
I will tell you about it. It is called gas fraud. They say that there is no gas even though there is. Since the customer has no way to check,
they leave the gauge and make money without putting gas in. So when the outdoor unit is running, you have to ask to see the gauge.
The old one is R2, the new one is R 410 The old one is normal at 60, and the new gas is normal at around 130.
Remember Gas is consumed little by little, but it can be used for 5 years or up to 10 years, so I hope you don’t get scammed.
You should definitely check the valve joint on the outdoor unit because it may cause gas to be consumed quickly by not tightening it enough.
Besides this, there are people who confuse people by talking about technical issues such as plumbing fraud and malfunction fraud, so please be careful.