In accordance with BBs buy site, You cannot return or exchange the swap 2 anymore, I'm guessing It really is just an error/bug. As mentioned and evidenced a pair times throughout the forum the heatpump performance drops off fairly greatly when It is running all out on the higher stages https://copyright-side-effects75926.therainblog.com/34512219/how-copyright-dosage-can-save-you-time-stress-and-money