RCCrawler Forums

hlb3 · 07-02-2011, 08:01 PM

I've been running an XR4 for like 6 months now with zero issues. Today I was playing with my MRC (Stock ESC, Hitec 645), it was just sitting there, my radio made a couple beeps and then the MRC just freaked out, the steering cranked to the right and it took off full throttle in reverse. I looked and all the settings on the radio were still the same. I have a few different receivers for it, it did the same thing with all the receivers. I am completely stumped, anybody hear of anything like this happening or have any suggestions for me?

hlb3 · 07-02-2011, 08:09 PM

I tried changing the batteries in the radio and setting it up on a different memory setting, made no difference.

Charlie-III · 07-02-2011, 09:01 PM

What radio?
Are the rig batteries still good, did you try a different pack?
Did you try recalibrating the ESC to the RX?

hlb3 · 07-02-2011, 09:17 PM

The radio is an RC4WD XR4.

The batteries on the rig are fine, tried a different pack, also tried my scaler, which did the exact same thing.

I tried recalibrating it on my scalers FXR and it made no difference, don't know how (if it is even possible) to do it on the MRC's ESC.

swezy207 · 07-02-2011, 10:08 PM

Ive had no problems with mine so far, never heard of that happening.

hlb3 · 07-02-2011, 10:31 PM

It's basically acting like the trim for both the throttle and steering are turned way over, if I put the throttle trim up to like 55% it stops running, and putting the steering up to like 80% straightened the wheels back out,

squatch71 · 07-03-2011, 12:11 AM

Quote:

Originally Posted by Charlie-III

What radio?

Read the title.

never heard of that either, the only thing I have found that we were out crawling and I couldn't get further away than 5 feet or I would get no signal at all. did all the steps to it, re calbriated it, etc...changed receivers and bamo...worked perfect. This was odd, cause just a week earlier I had no problems with it....went about 200 feet away and ran great. Contact Tom at RC4WD, maybe you have to send the radio in and have it looked at.

do you have BEC in the rig? if so, whats it set to??

hlb3 · 07-03-2011, 12:21 AM

Quote:

Originally Posted by squatch71

Read the title.

never heard of that either, the only thing I have found that we were out crawling and I couldn't get further away than 5 feet or I would get no signal at all. did all the steps to it, re calbriated it, etc...changed receivers and bamo...worked perfect. This was odd, cause just a week earlier I had no problems with it....went about 200 feet away and ran great. Contact Tom at RC4WD, maybe you have to send the radio in and have it looked at.

do you have BEC in the rig? if so, whats it set to??

Yeah, I tried 3 different receivers and nothing.

There is no BEC in the MRC, my scaler has a BEC and it is set to 6v.

2500hdon37s · 07-03-2011, 06:54 AM

do you have the fail safe mode set on the rx's?

if not I belive that is your problem, I have the fail safe set on mine and not a problem with the 4 rigs i run my xr4 in.

hlb3 · 07-03-2011, 08:25 AM

Fail safe is set, when the radio is off it would just sit there and not move like it is suppose to, when you turn it back on it takes off out of control again.

squatch71 · 07-03-2011, 08:51 AM

Do you have any other rigs that you can put this receiver into test?? maybe its your ESC? try other radio/receiver combos in this rig to eliminate the culprit.

hlb3 · 07-03-2011, 08:54 AM

All 3 receivers are doing the same thing on both my MRC and my scaler, both of which are working perfectly with an old crappy AM radio.

squatch71 · 07-03-2011, 09:03 AM

WOW....give RC4WD a shout, they are really good to deal with, I have found.

crap, I see where you said earlier that you did try it in your scaler....

Charlie-III · 07-03-2011, 10:09 AM

Quote:

Originally Posted by squatch71

Read the title.

I'm sorry I don't know every brand/model of radio or rig, I did read the title.

hlb3 · 07-03-2011, 10:11 AM

I shot them an email yesterday after it started doing it, of course it is a holiday weekend so it will probably be a while before I hear back.

hlb3 · 07-07-2011, 07:31 PM

Well I finally heard back and I am SOL.

This is what they had to say: "We have heard of only one other issue like this. Not sure what the reason is for the problem."

Since it was past the 30 day warranty, they couldn't do anything, they offered to sell me a new one at a discount, which is better than nothing, but I am going to just sell off my receivers and get something else decent.

07-02-2011, 08:01 PM	#1
hlb3 Rock Stacker Join Date: Nov 2007 Location: Tenino Posts: 80	RC4WD XR4 problem I've been running an XR4 for like 6 months now with zero issues. Today I was playing with my MRC (Stock ESC, Hitec 645), it was just sitting there, my radio made a couple beeps and then the MRC just freaked out, the steering cranked to the right and it took off full throttle in reverse. I looked and all the settings on the radio were still the same. I have a few different receivers for it, it did the same thing with all the receivers. I am completely stumped, anybody hear of anything like this happening or have any suggestions for me?

07-02-2011, 08:09 PM	#2
hlb3 Rock Stacker Join Date: Nov 2007 Location: Tenino Posts: 80	I tried changing the batteries in the radio and setting it up on a different memory setting, made no difference.

07-02-2011, 09:01 PM	#3
Charlie-III I wanna be Dave Join Date: Nov 2010 Location: 07456 N. NJ USofA Posts: 8,314	What radio? Are the rig batteries still good, did you try a different pack? Did you try recalibrating the ESC to the RX?

07-02-2011, 09:17 PM	#4
hlb3 Rock Stacker Join Date: Nov 2007 Location: Tenino Posts: 80	The radio is an RC4WD XR4. The batteries on the rig are fine, tried a different pack, also tried my scaler, which did the exact same thing. I tried recalibrating it on my scalers FXR and it made no difference, don't know how (if it is even possible) to do it on the MRC's ESC.

07-02-2011, 10:08 PM	#5
swezy207 Quarry Creeper Join Date: Jul 2010 Location: My garage... Posts: 366	Ive had no problems with mine so far, never heard of that happening.

07-02-2011, 10:31 PM	#6
hlb3 Rock Stacker Join Date: Nov 2007 Location: Tenino Posts: 80	It's basically acting like the trim for both the throttle and steering are turned way over, if I put the throttle trim up to like 55% it stops running, and putting the steering up to like 80% straightened the wheels back out,

07-03-2011, 06:54 AM	#9
2500hdon37s I wanna be Dave Join Date: Mar 2009 Location: sittin in the sky Posts: 4,630	do you have the fail safe mode set on the rx's? if not I belive that is your problem, I have the fail safe set on mine and not a problem with the 4 rigs i run my xr4 in.

07-03-2011, 08:25 AM	#10
hlb3 Rock Stacker Join Date: Nov 2007 Location: Tenino Posts: 80	Fail safe is set, when the radio is off it would just sit there and not move like it is suppose to, when you turn it back on it takes off out of control again.

07-03-2011, 08:51 AM	#11
squatch71 I wanna be Dave Join Date: Sep 2008 Location: four o six Posts: 2,101	Do you have any other rigs that you can put this receiver into test?? maybe its your ESC? try other radio/receiver combos in this rig to eliminate the culprit.

07-03-2011, 08:54 AM	#12
hlb3 Rock Stacker Join Date: Nov 2007 Location: Tenino Posts: 80	All 3 receivers are doing the same thing on both my MRC and my scaler, both of which are working perfectly with an old crappy AM radio.

07-03-2011, 09:03 AM	#13
squatch71 I wanna be Dave Join Date: Sep 2008 Location: four o six Posts: 2,101	WOW....give RC4WD a shout, they are really good to deal with, I have found. crap, I see where you said earlier that you did try it in your scaler....

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07-03-2011, 10:11 AM	#15
hlb3 Rock Stacker Join Date: Nov 2007 Location: Tenino Posts: 80	I shot them an email yesterday after it started doing it, of course it is a holiday weekend so it will probably be a while before I hear back.

07-07-2011, 07:31 PM	#16
hlb3 Rock Stacker Join Date: Nov 2007 Location: Tenino Posts: 80	Well I finally heard back and I am SOL. This is what they had to say: "We have heard of only one other issue like this. Not sure what the reason is for the problem." Since it was past the 30 day warranty, they couldn't do anything, they offered to sell me a new one at a discount, which is better than nothing, but I am going to just sell off my receivers and get something else decent.

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Thread: RC4WD XR4 problem