- The XL900 offers sophisticated technology that will inform you of any diagnostic problems or malfunctions with your AC and heating units
- The representatives on the live-chat features have a hard time answering technical questions and many features require expensive upgrades
- Overall, the XL900 from Trane is equipped with all the features to keep your home comfortable. It can monitor the humidity in your home, tell you when there is a malfunction with your unit and self-program each day of the week. If you have any more questi...
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