# 2008 GEM, error codes R4F throttle

**URL:** <https://community.electricforum.com/t/2008-gem-error-codes-r4f-throttle/26810>\
**Category:** GEM Forum\
**Created:** [August 14, 2023, 1:46pm UTC](https://community.electricforum.com/t/2008-gem-error-codes-r4f-throttle/26810 "2023-08-14T13:46:31Z")\
**Posts on this page:** 1\
**Page:** 4

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**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:** [March 31, 2026, 5:45pm UTC](https://community.electricforum.com/t/2008-gem-error-codes-r4f-throttle/26810/61 "2026-03-31T17:45:02Z")

</div>

Need to buy 25 for $15, and it may not be correct type. Guessing it uses black ceramic magnet.

 ![image](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/3X/6/2/62c6890460b48042a7275621db2a3930f5e55e89.png)  
Wrong polarity.

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