# 2001 e285 Speedo head has no data or power. **URL:** \ **Category:** GEM Forum\ **Created:** [July 26, 2019, 11:59pm UTC](https://community.electricforum.com/t/2001-e285-speedo-head-has-no-data-or-power/16703 "2019-07-26T23:59:14Z")\ **Posts on this page:** 1\ **Showing post:** 4
**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:** [July 27, 2019, 2:48am UTC](https://community.electricforum.com/t/2001-e285-speedo-head-has-no-data-or-power/16703/4 "2019-07-27T02:48:47Z")
My suggestion was for the dead head. Must be the cable connections. Charger, I don’t know! > [@Zivan NG1 charger error codes](https://community.electricforum.com/t/zivan-ng1-charger-error-codes/1507): > > This is a list of error codes for the Zivan charger used on many pre-2005 GEMs. Daniel blank: normal if charger unplugged no AC voltage check line voltage and charger internal fuse red flash: battery presence DC voltage out of range close master disconnect, check battery voltage and polarity yellow flash with audible alarm: thermal sensor failure thermistor out of range check connection and resistance of thermal sensor green flash with audible alarm: charge time too long, charger t… --- _[View the full topic](https://community.electricforum.com/t/2001-e285-speedo-head-has-no-data-or-power/16703)._