The last few ice makers were making loud screeching noises during the clean process, hoshizaki says this is normal and goes away once chemicals are flushed out of auger. This is true, the noise does go away, last few times it didn't and had to shut it down as it was getting that loud, one time it blew fuse for auger. has this ever happened to any one else. using same cleaning procedure with same type and amount of chemicals. Thanxs in advance..