SL3S LNB toast?

[PatD]

I did self install using Direct TV Slimline 3 with SL3S LNB and all was fine until I had to move my receivers and cabling around. I am now 99% convinced that my LNBis fried since I can get no signal and the power inverter has blinking light. Even though the Lnb worked when I got it I noticed it had something loose inside that made clinking sound when I shook it.
Direct TV support person suggests the light will blink if I don't have satellite signal but this makes no sense to me and seems to certainly more indicative of a short or other hardware issue. Can someone confirm that I should have solid green light regardless of signal stength when everything is connected?
I tried putting on an old LNB I had kicking around (18LNBR0-02)) and the pwer inserter light went solid, which seems to confirm my notion that the SL3S LNB is fried?

- HR24/100
- Slimline 3 Dish
- SL3S LNB
- SWM 4 way splitter (I have a standard receiver as well)
- Power Inserter

**Should note that I get 771A error from the receiver**

 

[SA Holly Springs GA]

Can't confirm whether that determines the lnb is fried.
I can confirm that is DOES NOT matter whether there is a signal or not, the green light will be solid.
From experience, when I have plugged a PI in to wall plate and it blinks (it usually shocks me as well) then the 21v the PI puts out isn't getting through the cable. Meaning, sometimes a large kink in the wire or a cable splitter. Those are 2 things I've found most common when a PI blinks.

My solution is run my own line straight to the splitter. Solves that problem every time.

But it possible the lnb might be fried.

 

[Jimbo]

More than likely he may have fried the SPARE LNB he tried.

He just put 21V to a LNB that is set up to recvr 18 tops.