Decipher error codes & display as sensor #106
Description
It would be amazing if this could decipher the error codes, and display them as a diagnostic sensor. I know it's shown as an attribute now, but it's not human-readable. I'm not sure if there's a source to reference these from or if it would just have to be crowd-sourced.
For instance, when the attribute for error code showed "274", the Fujitsu app showed a "Serial reverse transmission error". I had a couple errors right around that time, so not sure if 274 is the "at startup" or "during operation" variant of the error.