Another S-10 hardware problem, seems the power supply IC regulator part # SD 4841 is only rated for 10 watts. Barely enough to run the receiver let alone any external motors or switches. This might be why some people have had re-boots, especially when moving a motor. Other S-10 are using a #SD4844 that specs out at 16 watts, may be why some users say "whats the big deal, mine works fine". Just do an Ebay search for SD4844 and you will find them. If you don't want to solder in a new chip, you can buy the entire power supply from china if you want to gamble for like $10 and change. However some people have reported that those supplies have the same weak SD-4841. Better off to just change out the chip. This might get some of these S-10s going that the thermistor didn't fix.