Pioneer VSX-D810S 6.1 Channels Receiver

I purchased this unit and was happy with it for some time. It has developed a problem though... At times it will flash "Power Off" and shut down. Other times, when I try to turn it on, it flashes "Power Off" and shuts down. If I repeatedly turn the unit on and off it seems to eventually stay on. Before taking the unit in to be serviced, I usually open it up, blow out any dust and it will usually come on again. This is very frustrating because of the time involved unplugging and re-attaching 7 speakers and multiple components. I have since learned to label all of my speaker wires to speed up the connection process. I sit at this time beside my unit turning it on and off repeatedly. I've heard of others having this problem with no solution because the problem can not be duplicated at the test center. I encourage everyone with similar problems to post them so that Pioneer service will be forced to deal with the issue.