postgres invalid byte sequence for encoding "UTF8"

my origin database is with SQL_ASCII encoding and my future database is with UTF8, which is in another server.

well... I export with this command:

pg_dump -v -E UTF8 -Fc -h x.x.x.x old-database-name -U username > backup.dmp

and try import with this one

pg_restore --single-transaction -v -Fc -d new-database-name -U username <  backup.dmp

but I am facing this error:

pg_restore: [arquivador (bd)] Erro ao PROCESSAR TOC: pg_restore:[arquivador (bd)] Erro no registro do TOC 722; 1255 4594720 FUNCTIONWhatever(character varying) username pg_restore: [arquivador (bd)]could not execute query: ERRO: sequência de bytes é inválida paracodificação "UTF8": 0xe1 0x72 0x69

if I dump and restore without -E parameter works well, but my new database then has characters problems.