20LikesOfficial Tekin RX8 GEN2 ESC Thread
05-15-2014 | 01:30 AM
#2162
Tech Regular
Joined: Aug 2013
Posts: 312
From: South Africa, Durban
If your RX8gen2 unit flashes leds 1,4,7 please send it in for repair.
When the unit temp is around 3 leds it will start flashing leds 1,4,7. This may happen a few times and reset or in some cases continue this loop until the unit is turned off and back on.
There is simply a misloaded component on the control board causing this condition.
We apologize to those few that have gotten these units. We caught the mistake pretty early, but some units did get out the door before we were aware of it.
Please make sure the unit is not actually flashing 1,3,5 indicating voltage cutoff. Again this error code will typically show up about 3 min into a run when the unit gets to about 3leds of temp.
Please fill out the service form on our website and include it with the unit. Clearly mark that it is a 1,4,7 error code and we will fix it up and get it back to you quickly.
Thank you for understanding. Things happen.... All we can do is react quickly and make it right so everyone can get back to Racin!
Jim Campbell
President
Tekin, Inc.
When the unit temp is around 3 leds it will start flashing leds 1,4,7. This may happen a few times and reset or in some cases continue this loop until the unit is turned off and back on.
There is simply a misloaded component on the control board causing this condition.
We apologize to those few that have gotten these units. We caught the mistake pretty early, but some units did get out the door before we were aware of it.
Please make sure the unit is not actually flashing 1,3,5 indicating voltage cutoff. Again this error code will typically show up about 3 min into a run when the unit gets to about 3leds of temp.
Please fill out the service form on our website and include it with the unit. Clearly mark that it is a 1,4,7 error code and we will fix it up and get it back to you quickly.
Thank you for understanding. Things happen.... All we can do is react quickly and make it right so everyone can get back to Racin!
Jim Campbell
President
Tekin, Inc.
05-15-2014 | 12:46 PM
#2163
Tech Elite
Joined: Oct 2011
Posts: 2,069
Yea I wish they had a program like hard drives companies do, where you can give them a CC number and have a hold placed for the new unit, so they can send the new one out as soon as you get an RMA #, then if you never send it in, or it's out of warranty, whatever they just bill the difference.
it sucks because it is brand new hope they ship it back quick
05-15-2014 | 01:59 PM
#2164
Team Tekin
Joined: Mar 2005
Posts: 1,199
No... This is clearly a manufacturer flaw regardless of time frame and our responsibility to take care of. Any unit sent in with this error code will be repaired regardless of when it was purchased. Fortunately it shows up almost immediately so most units will likely be well within warranty either way.
Not many made it out and I suspect we will find them all pretty quickly because they do not sit around in stock anywhere for long
Not many made it out and I suspect we will find them all pretty quickly because they do not sit around in stock anywhere for long
05-15-2014 | 02:02 PM
#2165
No... This is clearly a manufacturer flaw regardless of time frame and our responsibility to take care of. Any unit sent in with this error code will be repaired regardless of when it was purchased. Fortunately it shows up almost immediately so most units will likely be well within warranty either way.
Not many made it out and I suspect we will find them all pretty quickly because they do not sit around in stock anywhere for long
Not many made it out and I suspect we will find them all pretty quickly because they do not sit around in stock anywhere for long
05-15-2014 | 03:47 PM
#2166
Team Tekin
Joined: Mar 2005
Posts: 1,199
There are so few out there I really hate to open that can of worms and have people digging in to look. You cannot tell just by looking and it has to be measured. If it is there you should know right away.
05-15-2014 | 03:58 PM
#2167
Tech Apprentice
Joined: Apr 2012
Posts: 71
I have an issue with my esc losing reverse after about 5 minutes of run time. I plug a battery in & it's working at first but after 3-5 min run time I have no reverse. Any ideas? I'm running losi 3.0 truggy with gen 2 esc & tekin 2000 kv motor. Worked fine for first 20-30 packs I've run
05-16-2014 | 05:58 AM
#2168
I have been reading about that you are not supposed to turn down the throttle epa in your radio to take power out. What would be the difference in adjusting the throttle curve in the esc? Would that yield the same results as turning down the epa?
05-16-2014 | 01:57 PM
#2169
Team Tekin
Joined: Mar 2005
Posts: 1,199
Throttle signal might be drifting off neutral once unit is warmed up. If we do not see neutral for 1 sec it will not activate reverse. Try making the neutral width a little wider. Could be the radio drifting a little or the esc.
......
It is not terrible to reduce throttle epa some. We just do not like a lot because the systems work better with higher throttle and runs cooler. Reducing to 70% range is not bad. Under 50% is not good. Techy reason is the pwm duty cycle and low throttle is a lot of off time between shorter on times which causes higher current during the on times under load. We like to be close to full throttle under heavy loads.
Changing the throttle curve does not change the full throttle. It only changes the throttle amounts in the middle relative to the trigger. Full throttle is still full throttle when you set a curve, but for example 75% throttle may only be 60% on a curve. If you roll the throttle on and off a curve is helpful. If you snap full throttle like a nitro curves do not do much. If you are trying to tame something like a 2650kv you might need to reduce throttle epa some after calibrating to mellow the full speed. FYI if the motor is a lot too fast it is not the right motor. 2650kv is not a good buggy race motor and just hard on everything.
Current limitor is also a good setting. Most pro drivers run 60 to 70 to tame them down and get the power to the ground instead of spinning the stretched tires. Again does not change the top speed when spooled out, but takes longer to get there even if you stab full throttle.
......
It is not terrible to reduce throttle epa some. We just do not like a lot because the systems work better with higher throttle and runs cooler. Reducing to 70% range is not bad. Under 50% is not good. Techy reason is the pwm duty cycle and low throttle is a lot of off time between shorter on times which causes higher current during the on times under load. We like to be close to full throttle under heavy loads.
Changing the throttle curve does not change the full throttle. It only changes the throttle amounts in the middle relative to the trigger. Full throttle is still full throttle when you set a curve, but for example 75% throttle may only be 60% on a curve. If you roll the throttle on and off a curve is helpful. If you snap full throttle like a nitro curves do not do much. If you are trying to tame something like a 2650kv you might need to reduce throttle epa some after calibrating to mellow the full speed. FYI if the motor is a lot too fast it is not the right motor. 2650kv is not a good buggy race motor and just hard on everything.
Current limitor is also a good setting. Most pro drivers run 60 to 70 to tame them down and get the power to the ground instead of spinning the stretched tires. Again does not change the top speed when spooled out, but takes longer to get there even if you stab full throttle.
05-16-2014 | 03:32 PM
#2171
Throttle signal might be drifting off neutral once unit is warmed up. If we do not see neutral for 1 sec it will not activate reverse. Try making the neutral width a little wider. Could be the radio drifting a little or the esc.
......
It is not terrible to reduce throttle epa some. We just do not like a lot because the systems work better with higher throttle and runs cooler. Reducing to 70% range is not bad. Under 50% is not good. Techy reason is the pwm duty cycle and low throttle is a lot of off time between shorter on times which causes higher current during the on times under load. We like to be close to full throttle under heavy loads.
Changing the throttle curve does not change the full throttle. It only changes the throttle amounts in the middle relative to the trigger. Full throttle is still full throttle when you set a curve, but for example 75% throttle may only be 60% on a curve. If you roll the throttle on and off a curve is helpful. If you snap full throttle like a nitro curves do not do much. If you are trying to tame something like a 2650kv you might need to reduce throttle epa some after calibrating to mellow the full speed. FYI if the motor is a lot too fast it is not the right motor. 2650kv is not a good buggy race motor and just hard on everything.
Current limitor is also a good setting. Most pro drivers run 60 to 70 to tame them down and get the power to the ground instead of spinning the stretched tires. Again does not change the top speed when spooled out, but takes longer to get there even if you stab full throttle.
......
It is not terrible to reduce throttle epa some. We just do not like a lot because the systems work better with higher throttle and runs cooler. Reducing to 70% range is not bad. Under 50% is not good. Techy reason is the pwm duty cycle and low throttle is a lot of off time between shorter on times which causes higher current during the on times under load. We like to be close to full throttle under heavy loads.
Changing the throttle curve does not change the full throttle. It only changes the throttle amounts in the middle relative to the trigger. Full throttle is still full throttle when you set a curve, but for example 75% throttle may only be 60% on a curve. If you roll the throttle on and off a curve is helpful. If you snap full throttle like a nitro curves do not do much. If you are trying to tame something like a 2650kv you might need to reduce throttle epa some after calibrating to mellow the full speed. FYI if the motor is a lot too fast it is not the right motor. 2650kv is not a good buggy race motor and just hard on everything.
Current limitor is also a good setting. Most pro drivers run 60 to 70 to tame them down and get the power to the ground instead of spinning the stretched tires. Again does not change the top speed when spooled out, but takes longer to get there even if you stab full throttle.
05-17-2014 | 02:41 PM
#2175
Same radio and that's where I'm at on NW. That's a good radio and neutral shouldn't be drifting... debunks my theory 
Maybe try go into advanced functions on the radio and dial in the trigger & wheel throws? Worth a try if you haven't yet.
Does it do the same no run if you have the same custom settings and only change LVC to 2s?
Maybe try go into advanced functions on the radio and dial in the trigger & wheel throws? Worth a try if you haven't yet.
Does it do the same no run if you have the same custom settings and only change LVC to 2s?
Last edited by fq06; 05-17-2014 at 03:02 PM.