# 2000 GEM dead after Radio install **URL:** \ **Category:** GEM Forum\ **Created:** [August 29, 2016, 4:40pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323 "2016-08-29T16:40:17Z")\ **Posts on this page:** 20\ **Page:** 3
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [September 11, 2016, 8:58am UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/41 "2016-09-11T08:58:37Z")
Most any controller problem should give an error code. ---
**Author:** ![Old\_Houseboater](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/old_houseboater/32/544_2.png) [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)\ **Post date:** [September 11, 2016, 10:22am UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/42 "2016-09-11T10:22:41Z")
Ohm out your motor ---
**Author:** ![firejpn](https://avatars.discourse-cdn.com/v4/letter/f/e495f1/32.png) [@firejpn](https://community.electricforum.com/u/firejpn)\ **Post date:** [September 11, 2016, 4:26pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/43 "2016-09-11T16:26:09Z")
the right direction if I ohm out f1-f2 I get 0.6 if I ohm out a1-a2 I get 2.3 not sure if this was right way to measure ---
**Author:** ![firejpn](https://avatars.discourse-cdn.com/v4/letter/f/e495f1/32.png) [@firejpn](https://community.electricforum.com/u/firejpn)\ **Post date:** [September 11, 2016, 4:27pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/44 "2016-09-11T16:27:02Z")
Sorry about cut post. Not sure if I did this right but the if I ohm out f1-f2 I get 0.6 if I ohm out a1-a2 I get 2.3 not sure if this was right way to measure ---
**Author:** ![Old\_Houseboater](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/old_houseboater/32/544_2.png) [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)\ **Post date:** [September 11, 2016, 5:32pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/45 "2016-09-11T17:32:12Z")
Right so far. Check both to ground - should be no read. ---
**Author:** ![firejpn](https://avatars.discourse-cdn.com/v4/letter/f/e495f1/32.png) [@firejpn](https://community.electricforum.com/u/firejpn)\ **Post date:** [September 11, 2016, 8:06pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/46 "2016-09-11T20:06:12Z")
So 00.0 at field posts 0.L at armature posts. I have no codes when I press gas pedal just not enough juice. I get 72 volts at the +B post of controller but could I have a bad battery somehow? Shouldn’t have good voltage I wouldn’t think though. ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [September 11, 2016, 8:13pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/47 "2016-09-11T20:13:41Z")
Do you lose display when losing power? If no: Check for \>72v at main terminals of controller B+ and B-, while pressing acc. See where you are losing voltage. Losing voltage only at main terminals will not set a code. Voltage is sensed at P1 or P2. It could be a bad power connection anywhere between batteries, thru fuse/switch, or even inside controller. ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [September 11, 2016, 8:25pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/48 "2016-09-11T20:25:04Z")
Any of these connections or bad battery can let voltage drop under load. ---
**Author:** ![firejpn](https://avatars.discourse-cdn.com/v4/letter/f/e495f1/32.png) [@firejpn](https://community.electricforum.com/u/firejpn)\ **Post date:** [September 13, 2016, 6:42pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/49 "2016-09-13T18:42:50Z")
So I got the cart moving today. I show drop in voltage when applying throttle at the +b and -b post. Voltage returns to normal when released. Vehicle shudders pretty hard from dead stop. Once rolling it did get up to speed 23 mph or so. But every time I stop same thing. I only drive it around the block and upon return maybe 3 mins motor smelled really hot and all cables to motor where very hot. Any idea motor? Controller ? I am happy that my original problems appear corrected. But if I can’t get it to move it isn’t gonna help much. Thanks for all the help you guys have provided. ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [September 13, 2016, 6:55pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/50 "2016-09-13T18:55:56Z")
If all cables are hot, drawing too much current. Not good. I suspect heat is greater in one or two spots. After a run find the hot spot. That’s the problem. ---
**Author:** ![firejpn](https://avatars.discourse-cdn.com/v4/letter/f/e495f1/32.png) [@firejpn](https://community.electricforum.com/u/firejpn)\ **Post date:** [September 13, 2016, 7:07pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/51 "2016-09-13T19:07:37Z")
So would this be more motor related than controller. It is a 16 year old gem so I know it could be getting tired ---
**Author:** ![Old\_Houseboater](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/old_houseboater/32/544_2.png) [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)\ **Post date:** [September 13, 2016, 7:19pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/52 "2016-09-13T19:19:39Z")
jack up the cart and spin each wheel for dragging. Brake cables freeze up when they get old Rodney ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [September 13, 2016, 7:25pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/53 "2016-09-13T19:25:03Z")
> [@firejpn;32589](#): > > So would this be more motor related than controller. It is a 16 year old gem so I know it could be getting tired Yes, unlikely failure mode for controller. Is motor hot? ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [September 13, 2016, 7:26pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/54 "2016-09-13T19:26:14Z")
> [@firejpn;32587](#): > > So I got the cart moving today. I show drop in voltage when applying throttle at the +b and -b post. Voltage returns to normal when released. Vehicle shudders pretty hard from dead stop. Once rolling it did get up to speed 23 mph or so. But every time I stop same thing. I only drive it around the block and upon return maybe 3 mins motor smelled really hot and all cables to motor where very hot. Any idea motor? Controller ? I am happy that my original problems appear corrected. But if I can’t get it to move it isn’t gonna help much. Thanks for all the help you guys have provided. I told you that you did nothing to cause this! :D:clap2: ---
**Author:** ![firejpn](https://avatars.discourse-cdn.com/v4/letter/f/e495f1/32.png) [@firejpn](https://community.electricforum.com/u/firejpn)\ **Post date:** [September 13, 2016, 8:03pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/55 "2016-09-13T20:03:43Z")
Yes motor was hot to touch. I assume break drag is less likely because of the ability to maintain its top speed and front brakes are disc conversion. And as i say that since I got the unit occassiolly I would have burned wire odor. Tonight was far worse. ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [September 13, 2016, 8:07pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/56 "2016-09-13T20:07:49Z")
You will soon be a qualified Gem mechanic. What you need is GE sentry sw to monitor current. Or a cheap power meter from Ebay. ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [September 13, 2016, 8:08pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/57 "2016-09-13T20:08:51Z")
Did you ever check for ground fault? As OH suggested. I don’t recall. ---
**Author:** ![Old\_Houseboater](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/old_houseboater/32/544_2.png) [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)\ **Post date:** [September 13, 2016, 8:50pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/58 "2016-09-13T20:50:21Z")
Back brakes 0 ---
**Author:** ![firejpn](https://avatars.discourse-cdn.com/v4/letter/f/e495f1/32.png) [@firejpn](https://community.electricforum.com/u/firejpn)\ **Post date:** [October 17, 2016, 6:24pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/59 "2016-10-17T18:24:35Z")
Ok I know it’s been awhile. I got busy with work and this hurricane Matthew. So I jacked up the front motor seemed to respond as designed. So I jacked up rear. Bingo one wheel almost frozen. Pulled em down one shoe completely gone and and fused into drum. Wheel cylinders all looked like crap. Problem solved. I replaced both hub assemblies with functioning used pieces. And here comes the rub. Slapped the wheels on time for a quick spin. Off we go car moves yahoo, drive about 6 blocks and notice the off the line is slower than prior to all this. Then we start the shutter and then the smell of burning motor and a 41 code. Where should I go . Is this probable controller or motor. I pulled the motor off thinking maybe brushes but don’t want to throw away money just get it right ---
**Author:** ![Old\_Houseboater](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/old_houseboater/32/544_2.png) [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)\ **Post date:** [October 17, 2016, 6:38pm UTC](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323/60 "2016-10-17T18:38:28Z")
Look for stuck brushes and dirty commutator. Check armature for shorts and grounds. Be careful you can lunch your controller. I get $386 for controller rebuilds. Rodney [Previous page](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323.md?page=2) [Next page](https://community.electricforum.com/t/2000-gem-dead-after-radio-install/6323.md?page=4)