I have a SWM-8 installed on my RV using a Winegard Travler 5 LNB Directv satellite antenna which is simply a mobile version of the Slimline dish. It is routed to the SWM-8 and then to two HR-21s and one HR-20 receiver using an appropriate digital splitter and power supply. I had first installed this setup in February of 09 after I had the dish installed on the RV. Because the manufacturer of the RV only ran one line to each TV and it was almost impossible to run additional lines, without going through the roof, it made sense to install the SWM-8. The first one I had mounted horizontally on the roof near the dish. The system worked fine until September of that year then failed unexpectedly. For several days prior to the failure, the receivers would intermittently all say "Searching for signal on satellite in 2" and there would be periods of pixelation and picture freeze. I replaced the unit with a second one, this time mounting the unit vertically and taking special care to make sure all connections were tight and sealed with silicone. I assumed that the problem with the first unit was water intrusion, although I have no evidence to back that up. This second unit failed 24 hours ago and we had noticed the pattern of pixelation, signal searching, and intermittent picture freeze for the last couple of days. I first tried powering down all receivers and the SWM and then restarting the SWM, waiting a minute or two, and then powering up one receiver. This did not work. I checked the voltage coming out of the PI and it was 28 as was the voltage at the SWM itself. I then tried connecting one of my receivers directly to one of the dish outputs and I am able to get a signal from the dish to the receiver without any problem. I did notice that in leaving the SWM plugged in it feels cold to the touch and most of the time when it is working it feels warm; I can only assume that even though power is being supplied nothing is working internally. I have scoured the internet for any kind of "reset" procedure but none seems to be available and it seems failure of any kind is quite rare. I do not know if there is any kind of internal fuse that could blow. Further the RV is protected by a whole house surge suppresion system and I have a separate surge protector on the power supply to the SWM. Of course I am now on the road and these units are just not available at your local Radio Shack and I will have to order one if I choose to replace it. My other option at this point is to by a cheaper and simpler 5x8 multiswitch and run new lines across the roof. At $120 every time this SWM fails, the cost is starting to add up. I am hoping someone here has had a similar experience and can tell me if they know of any reason why these units should fail. I know many people mount them outdoors so I do not believe the elements are the cause and we have been in snow, rain, sandstorms, and freezing conditions and the unit has continued to work just fine. The only two things that make this different from a residential installation are the vibration from moving the RV and the fact that power is interrupted to the unit every time we move the RV as well. I do not know if frequent power interruptions could be a cause of premature failure so if anyone has a more advanced knowledge of the SWM's inner workings, please let me know. I would appreciate anyone's input as I am trying to make a decision as to whether to plunk down the large chunk of change for a new swich or wire it up the old fashioned way. Thanks in advance.