I replaced a dehumidifier I owned for 18 years with a Hisense Dehumidifier and ran it thru the summer months clean it and stored it for the winter. When I returned it into service the next year I got the E9 error code and the unit was replaced.The same thing happed the next year and again this year, now Hisense states that the original Warranty of 2 years has expired even though all were run for 5 months User's recommendation: DO NOT BUY, HORRIBLE CUSTOMER RELATIONS. JUNK PRODUCT.