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We were advised of the same thing when our unit went out 10 years ago. The existing unit was 20 years old, and we just replaced everything.
The efficiency of the modern units is far superior to the older ones. We noticed a decrease in our electric bill when we upgraded.
It gets mighty hot here in Texas. Just one day without AC in the middle of the summer will convince you to upgrade and have the unit serviced every year, during the winter when AC techs are readily available and cheaper.
Just sayin'..............
TO
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