I have a Trane residential unit that is about 2 years old. Two of the copper tubes in the heat pump had been in contact, rubbing together. Over time, they abraded each other until a small leak started.
I want to silver solder the leak but not sure if I have to evacuate the system first. Can't think of any other way to repair except replace the section of copper tubing, which definitely requires evacuation. I would like to avoid that if possible.
Want to try to do it myself to avoid $550 charge the serviceman is quoting. Seems high for such a simple repair. Wasn't sure if the freon is flamable.
Can I solder without evacuating coolant? Any other suggestions for repairs?