# Psdm main switch 2008 gem

**URL:** <https://community.electricforum.com/t/psdm-main-switch-2008-gem/29537>\
**Category:** GEM Forum\
**Created:** [August 7, 2025, 11:23pm UTC](https://community.electricforum.com/t/psdm-main-switch-2008-gem/29537 "2025-08-07T23:23:28Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![EVBenny](https://avatars.discourse-cdn.com/v4/letter/e/51bf81/32.png) [@EVBenny](https://community.electricforum.com/u/EVBenny)\
**Post date:** [August 7, 2025, 11:23pm UTC](https://community.electricforum.com/t/psdm-main-switch-2008-gem/29537/1 "2025-08-07T23:23:28Z")

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Hey I upgraded my 2008 gem motor and controller to the Navitas 650a, it’s great for power and doesn’t overheat. However, I melted my 200a fuse and 400a BMS. I ordered a replacement for both but bypass them and was running around when I smell a little burning. I figured out it was the main switch on my PSDM because it won’t turn to the on position anymore. I Saw a couple people in this forum had similar problems but didn’t see where I could source a replacement switch. Can anyone help me source that?

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**Author:** ![AssyRequired](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/assyrequired/32/7621_2.png) [@AssyRequired](https://community.electricforum.com/u/AssyRequired)\
**Post date:** [August 8, 2025, 4:14am UTC](https://community.electricforum.com/t/psdm-main-switch-2008-gem/29537/2 "2025-08-08T04:14:36Z")

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Jeezus - I would like to see pics of this melted madness.

You must have been doing some crazy rewiring. I don’t think all of the motor power normally goes through that little flippy/breaker.

When you are driving → How many amps are you pulling? Have you been watching via BMS app?