My Panasonic sky digital receiver turns itself off periodically with out warning and with no particular pattern. it could happen at any time from 2 hours use to 3-4 days use. To get the receiver to work again i may have to switch off the unit (at the plug socket) a number of times, swithing it on/off until eventually i get to see a channel. This doesn't seem like very good practice but it is the only way to get it back on. The unit is well ventilated so i dont believe it is over heating, then again what do i know! Thanks for any help.
I suspect that the microprocessor in the receiver is overheating, which then causes it to go into stand-by.
Switching the receiver off allows it to cool down. Overheating will eventually destroy the device and your receiver will be stuck on stand-by (forever).
Try the following solution, which i have used:
http://www.satcure.co.uk/tech/fan.htm
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix satellite receivers.