I've had this problem ever since installing a DTV HR34. I am however
using a Radiance XD video processor. I haven't tried turning it off
however turning the 4311 off and on will correct it until I do something
I looked at one site and it indicated they were out nation wide. I
ordered a new one on eBay (shipped from Los Angeles) and all
is good now. I would guess the ones I tried from local sources
that indicated a fan #3 error (even though the TV worked) saw
a error in the yellow speed wire connection.
Anyone needing fan #3 they are available both used and new on eBay. Search for
a NOVOI G6015S12B2. I tried fans I was able to get locally and while they ran
and the TV worked the FAN #3 error message was still displayed.