really? I just got a second quote for only $200. Although they did say they don't recommend the repair because it's a heat pump and has been running all winter and if there is moisture inside it will gum up the system.
For 200, you are not getting a repair, especially if the system has to be cleaned up after being exposed to the atmosphere.
I did one last week and it took 3 hours of vacuum and nitrogen to get the crap out of the system.
Just my labor is more than $200, and then add in new filter drier, vacuum to <500 microns, new refrigerant, start and test.....