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I have a ductless condenser giveing me an error code of e2221 indoor unit capacity error what dose this mean

Not an expert at all ,but with oil if you get a tace of smoke with your tester . and co2 is not higer than 13.5 and no lower than 6. you should be good. Low co2 and high exess air ,might be a cracked...

looks like my last tune up