Hi
I woke up to a defrosting fridge freezer (approx 4yrs old) this morning......I'm pretty sure its lost refrigerant as the compressor is running but hot and the discharge pipe is cold

My question is it worth repairing a domestic sealed fridge with r600a? college really put me off domestic fridges with hydro carbon refrigerant after I saw the explosion potential

How would I braze a charging stub onto the sealed pipework?

I have no issues with the repair itself just the hydro carbon