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Old 08-17-2009, 07:09 PM
Brian Alderman
Tech Master
iTrader: (43)
Join Date: Jun 2009
Location: Richmond, Ky
Posts: 1,069
Trader Rating: 43 (100%+)

i have had the very same problem, had three runaways during some practice and one after a qual run. i have a zo1b with a 603fs rx and it also happend in columbus a couple weeks earlier while scott cramer who is with futaba was there and he said heat should be an issue??? so what i did was take a heat gun to the receiver and at 150-160f the light went from green to red everytime. i dont know what the failsafe mode is supposed to do but mine ran away as i was holding the brake to go pick it up off of pit lane, i mean went to wot and was gone!!!

i was told that this problem was cured with the 604 rxs and someone loaned me one but we could not get it to bind with my 3pk. so i drilled the holes as mentioned above and put the 603 back in and ran a 6min qual and 20 min main with no issues. i would rather not have the holes in the rx box, but i cant deal with the runaways so guess that how its got to be, but that amount of heat should be tolerated by the rx in my opinion, im using a nimh batt for power. just thought i would share what i found.
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