HAIER SERVICE MODE:
[1] MENU, 8, 8, 9, 3
[2] or, Numeric keys “062596” + DISPLAY key. ('FAC' mode menu). Then select “Factory” item.
[3] or, DISPLAY/INFO, P.MODE, S.MODE, SLEEP (Use 'E2P INT', to initialise the EEPROM)
HOTEL MODE: 'Source', 1, 0, 0, 1