Receiver issue???

[Tgreer]

Just switched over my twin hammer to 3s and a 27t brushed motor. I'm running an old mamba max pro and a 7954sh stearing servo and the stock shift servo. My receiver is an R2106gf futaba. My problem is I will run for about 1min and the receiver and my castle bec start to flash and nothing works with the transmitter anymore. The bec is set at 6.0v. The receiver flashes red and green, the manual says that's an unrecoverable memory failure! My bec also flashes its green light as well. I ran this same setup in my scailer, the only difference is that I had a winch on ch3 instead of a shift servo. I'm not sure what's going on, is my receiver getting overloaded, I don't know?

[hibbs]

Well as a starting point, try unplugging the 3rd channel. Can you tape/fix the shift linkage in place? That way you are back to the prior setup.

As far as overloading the receiver, can you unplug the steering servo too? Just to check for Rx function? Maybe by process of elimination you can find the problem.

[offroadace]

Had the same problem. Happened when my shift servo failed. The whole system was glitchy/buggy and would not stay focused or run.
Tore the whole assembly apart and add bits back with BEC still attached. Nothing. Changed back to the stock RX - nothing.
Removed the BEC (to stabilize it) and started adding things back in and found the shift servo went. Left that off and plugged the BEC back in and everything was fine and it had a bright green light.

Time to upgrade my shift servo!

[Tgreer]

Well I changed out my 27t to a 35t and I no longer have the receiver problem! I guess the 27t was pulling a lot of juice, but I would think it could handle it! Well when my shift servo bites the dust I will replace it with something else and try the 27t again.

[Charlie-III]

Originally Posted by Tgreer

Well I changed out my 27t to a 35t and I no longer have the receiver problem! I guess the 27t was pulling a lot of juice, but I would think it could handle it! Well when my shift servo bites the dust I will replace it with something else and try the 27t again.

What battery (mah & "C" rating) as well as what battery connectors are you running?

The combination you are running may be overdrawing the battery pack (low mah & low "C") causing a total brownout.

Is the external BEC to the RX or direct to the steering servo?

It may also be the 27T was geared too high which also adds amp draw. When you swapped the motors, did you change the gearing as well?

[Tgreer]

Yes, I figured out the stem of the problem! I have some 40c 2500 on order, but to test out I only had my comp 800mah flysky that I think are 25c. I think the better battery will solve the problem! I should not have tested it with my dinky comp packs! It was dropping the volts and shutting the receiver down, when I went to my 35t it did not drop as bad.