Dish drops channels during daylight, works fine at night

pragmatica

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Original poster
Aug 22, 2008
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Argh! The Dish Network dish has been installed at this house since 2001 and has never been a problem. I've had all kinds of idiocy with the receivers, but no problems with the dish itself. Until now.

Every single day, without fail, I lose about half of my channels during daylight hours. It starts around 9 AM, gets worse (more channels drop) as the sun gets higher in the sky, and around 5:30 they start coming back. At night, I get all the channels without fail. In fact, it took me a while to figure out that there was a pattern to this because I usually only watch at night, and I noticed that Tivo was regularly taping 30 or 60 minutes of the "acquiring signal" screen, and I didn't notice that the pattern was that it was always during daylight hours.

I live in San Jose, CA, where it's sunny every day in the summer, and has generally been warm with a few very hot (95F+) days.

I'm not home during the day very often so I haven't done an day-to-day analysis of whether it's always the same channels that drop out, and whether it always happens at the same time. I do know, from watching TV on weekend afternoons, that the channels that drop are often different -- usually the premium channels don't fail but they did last week, so that's my anecdotal evidence that it's not always exactly the same channels.

I hate intermittent problems!

I have no technical background whatsoever, so my ideas are automatically crackpot. But I'm thinking that it can't be the way that the dish is pointed because it's pointed fine at night, right? And if it were pointed wrong, I'd never get signals at all? So maybe it's some kind of heat buildup problem and the hotter it gets, the more the equipment fails? And then when it cools off, it works fine, so if I never watched TV during the day (or if Tivo never recorded during the day), I'd never even know there was a problem.

Does that make sense? Are there any electronic parts of the satellite dish that would fail in heat and function again when cooler? Am I barking up the wrong tree? Regardless of my crackpot theory, what are my next steps to figure this out and more importantly, to get this fixed??? (I actually just worked out my "heat problem" theory while writing this post, and if there's ANY POSSIBILITY that there's something to it, I can probably get them to foot the bill for coming out and fixing it, if only because DirecTV will be happy to come out and give me a perfect satellite dish for free.)

Thanks in advance for any light you can shed. I haven't bothered calling Dish Network yet because my experience with getting them to fix things is that they can only help me if I have fully identified the problem as well as the desired solution. Their troubleshooting skills leave something to be desired.

Regards,
Elissa K.
 
bad LNB...when the heat warms it up the LNB seizes up and when it cools down it starts to work

I had the same issue but the opposite. When it got cold here in Minnesota my LNB would seize up. This is when it got to about +15F or below...as soon as the LNB warmed up it worked fine

replace the LNB
 
Probably LNB Drift. If your features supports it, you can go to menu>6>1>3 and let it run a test. Go to DETAILS and see if it tells you there is LNB Drift. Drift affects people mostly during the day.
 
Yep, I'm in Vegas and the LNB's do not last very long here. Hope my new 1000.2 lnb's last a while since its a 3 lnb replacement at a time deal.
 
Depending on which LNB your setup is using, it may be of a LOT # that E* will replace, regardless of the age. The lot # can be found on the small silver ID tag on the side of the lnb that faces the dish. The lot # is very small. Write it down and call your dealer or the tech guys @ E*and ask if your LOT is shown to be defective.
 
check your signal strength

I don't know why one would assume it was a defective LNB before actually checking the signal strength. Dishes that are mounted to wood DO move eventually as the house settles and the wood ages.

If your signal strenth is low, the heat of the day could be warping the wood it is mounted to just enough to start losing transponders.... which would explain why only some of your channels are missing.... then when it is cooling off at night, the wood contracts and the Dish is now pointed a bit more accurately so you are picking up those missing transponders again...

That is the whole idea behind getting your signal strength to be as high as possible... so slight movements of the Dish and bad weather will not affect your service.

In short, try to repeak your Dish.... if you can't get the signal strenth higher, and the problem persists, THEN look to swap the LNB.

By the way... if you have a DPP Twin LNB that says "Made in USA" on it... go ahead and replace it anyway... if it isn't bad now it WILL be very soon.
 
I would be more willing to bet there is a short in the wire somewhere. Have found that when you have this problem in the summer, the wire has been cut somewhere, or water in a connection. During the winter, it is either the lnb or once again water in a connection somewhere.
 
Yeah Berg is right on this one, i had a costumer lose signal every night at 530. He couldnt figure it out, 530 every nightt he signal cut out. Finally he found out the garge door going up was pinching the cable.lol
 
Thanks to everyone for your help. This gave me much better idea of how to lead the online rep to the conclusion that I wanted him to reach, which is that Dish needs to waive the service fee for sending someone out to fix this.

FWIW, turns out that during daytime , the odd-numbered transponders are dropping the signal and the even numbers are fine, and the rep concluded that it's probably a failing lnb.

Whether or not I should have investigated whether it's the roof shingles or something else heat-related but not in the satellite electronics is, luckily, moot at this point. I'm afraid that I'm neither technical enough to climb up on my roof and deal with physical troubleshooting, so I just wanted them to come out do this without a service charge. It's clearly to their benefit to fix this stupid problem for free, because I could just as easily have another vendor come and install a whole house of new junk for free just so they can collect my overblown monthly payment instead of Dish.

Unfortunately, pricewise, Dish is the least outrageous vendor in my area and I'd rather stay with the devil I'm used to. Now I get to. Talk about a Pyrrhic victory.

Anyway. thanks for your most excellent help.

--Elissa
 
Well, whoever is coming out to your house isn't working for free, DISH will be paying them. This expense will go to their overhead operational expenses. When it comes time to calculate profits and losses, DISH will see that they have to charge more to make the same amount and pass another rate increase to offset these freebies. Pay once or pay forever, but no service call is ever really free.
 

Switching dual and single receivers

Dish Installer took 1000.2

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