# 2008 GEM el no power to motor controller **URL:** \ **Category:** GEM Forum\ **Created:** [June 24, 2020, 11:14pm UTC](https://community.electricforum.com/t/2008-gem-el-no-power-to-motor-controller/19155 "2020-06-24T23:14:41Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Stigaru](https://avatars.discourse-cdn.com/v4/letter/s/c5a1d2/32.png) [@Stigaru](https://community.electricforum.com/u/Stigaru)\ **Post date:** [June 24, 2020, 11:14pm UTC](https://community.electricforum.com/t/2008-gem-el-no-power-to-motor-controller/19155/1 "2020-06-24T23:14:41Z")
I have a 2008 gem with no power Problems No Power to controller No 12v power No LCD Power Things that have been done new batteries new motor 1 yr old have 72-74v power everywhere until it gets to the controller (i believe) I checked the power on pin one of the motor control and there’s nothing. Trying to figure out what I’m missing I’m kind of at a stand still. If apply 12v power to the display fuse it does come on. But other than that i’m lost on where to go next If the cart is on should I have 72v at the motor controller main power supply? Any suggestions would be appreciated Thanks ---
**Author:** ![RS\_E6](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/rs_e6/32/12308_2.png) [@RS\_E6](https://community.electricforum.com/u/RS_E6)\ **Post date:** [June 25, 2020, 2:17am UTC](https://community.electricforum.com/t/2008-gem-el-no-power-to-motor-controller/19155/2 "2020-06-25T02:17:31Z")
Is the main power switch functioning properly? ---
**Author:** ![Stigaru](https://avatars.discourse-cdn.com/v4/letter/s/c5a1d2/32.png) [@Stigaru](https://community.electricforum.com/u/Stigaru)\ **Post date:** [June 25, 2020, 3:16am UTC](https://community.electricforum.com/t/2008-gem-el-no-power-to-motor-controller/19155/3 "2020-06-25T03:16:31Z")
Yes, I believe so. When off there’s no voltage then switched on there’s 72v or more between. It’s on the charger now. No faults on the charger, the main switch is on the key is off. But the LCD is still off. ---
**Author:** ![LithiumGods](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/lithiumgods/32/672_2.png) [@LithiumGods](https://community.electricforum.com/u/LithiumGods)\ **Post date:** [June 25, 2020, 11:11am UTC](https://community.electricforum.com/t/2008-gem-el-no-power-to-motor-controller/19155/4 "2020-06-25T11:11:46Z")
sounds like dc converter is bad ---
**Author:** ![Stigaru](https://avatars.discourse-cdn.com/v4/letter/s/c5a1d2/32.png) [@Stigaru](https://community.electricforum.com/u/Stigaru)\ **Post date:** [June 25, 2020, 3:46pm UTC](https://community.electricforum.com/t/2008-gem-el-no-power-to-motor-controller/19155/5 "2020-06-25T15:46:44Z")
Is there a way to test the converter or bypass it to see if it’s bad? ---
**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:** [June 25, 2020, 5:00pm UTC](https://community.electricforum.com/t/2008-gem-el-no-power-to-motor-controller/19155/6 "2020-06-25T17:00:53Z")
If you have 72 volts in you should have 12/3 volts out. ---
**Author:** ![Stigaru](https://avatars.discourse-cdn.com/v4/letter/s/c5a1d2/32.png) [@Stigaru](https://community.electricforum.com/u/Stigaru)\ **Post date:** [June 26, 2020, 5:38pm UTC](https://community.electricforum.com/t/2008-gem-el-no-power-to-motor-controller/19155/7 "2020-06-26T17:38:52Z")
I just checked the red and black wires coming from the charger and it reads 72v. The manual says to replace DC/DC converter/charger assembly. Does that mean both or maybe one or both could be bad? I’m trying to make sure there’s 72v going in and 12/3v out but still reading on what pins to check. ---
**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:** [June 26, 2020, 6:12pm UTC](https://community.electricforum.com/t/2008-gem-el-no-power-to-motor-controller/19155/8 "2020-06-26T18:12:43Z")
email me for the manual [rodneyadiehl@aol.com](mailto:rodneyadiehl@aol.com) In a message dated 6/26/2020 1:48:53 PM Eastern Standard Time, [electricforum@discoursemail.com](mailto:electricforum@discoursemail.com) writes: ---
**Author:** ![Stigaru](https://avatars.discourse-cdn.com/v4/letter/s/c5a1d2/32.png) [@Stigaru](https://community.electricforum.com/u/Stigaru)\ **Post date:** [July 2, 2020, 2:59am UTC](https://community.electricforum.com/t/2008-gem-el-no-power-to-motor-controller/19155/9 "2020-07-02T02:59:28Z")
Thanks for the proper manual. The one I had was from 2012. So, I tested both 72v, and 12v and came to the conclusion I might need a new converter (as suggested) I was getting 72v everywhere but no 12v New converter, everything came back on, butttt… No movement. The LCD comes on but the battery is showing one solid red bar but the other bars are flashing as well as the tool icon, the temp icon and all 3 drive settings. No mileage either It’s measuring 73+ on everything Tested all the batteries and I’m getting around 14.1v on all but one, 13.3v Batteries bad? Than is again for the help and the right directions