Hlk-ld2410 detect presence while AC is on

hi i hv installed many ld2410 in my office they are working fine but i hv one small room in which i installed ld2410 but facing problem when my AC turns on ld2410 start showing presence, i hv adjust threshold, location, stop ac wings all possible things but its a small room and always detect presence when my ac turns on

any idea how to deal with it