I've got an 11 y/o 14 seer Carrier that has had issues pretty much yearly. It's got a zoned Comfort Zone II system with it. I replaced the compressor 14 months ago. It's going again. This time my service provider says it's due to the thermostat calling for too much coolant and it going back into the compressor damaging the valves. They say it needs a new thermostat (I replaced that 6 years back at $) and the zoning needs repair and the compressor will need replacement again. It would be close to $ to fix all this. Is it time to cut bait on this system and start with something new? I have some questions about Carrier's warranty because everything but the zone panel is under 10 years old. The service guy said it's only a year on the compressor, but I'm not sure about that.
Any thoughts here? Should I eat another service call from another co for a 2nd opinion?
Sorry for the long post.