Would you mind sharing how did you remove mosfet? I just tried it with hot air stations for like 15 minutes and temps up to 300C and it won't budgeKaiborgStudios wrote: ↑Thu Jan 09, 2020 5:49 amFor anyone who stumbles on this thread in the future, replacing the MOSFET was cheap and easy and worked great, $0.92 vs $170 new RAMBo.
Mouser part: https://www.mouser.com/ProductDetail/ne ... cycode=USD
Bed Not Heating M2 Rev. E
Re: Bed Not Heating M2 Rev. E
Re: Bed Not Heating M2 Rev. E
Update: Got it removed and replaced. Just needed more temperature and some solder probably helped... Working now! Thanks a lot for part number!
Re: Bed Not Heating M2 Rev. E
I, too, seem to have found the problem with my bed not heating on start-up. I replaced both the bed and the Rambo assuming that the problem was one or the other and I didn't want to dice around with the time it would take to discover which. Problem returned. either with the LCD using the prepare pre-heat control, or starting an Octoprint, the bed wouldn't heat.
I assumed that there might be a problem with the power supply, but after extensive testing concluded that it was ok.
Then i found that if I homed the bed before toggling bed-heat, it always worked.
I suppose i could change the firmware so it always homes the bed before starting heat.
It's too bad this wasn't documented anywhere I could find.
I assumed that there might be a problem with the power supply, but after extensive testing concluded that it was ok.
Then i found that if I homed the bed before toggling bed-heat, it always worked.
I suppose i could change the firmware so it always homes the bed before starting heat.
It's too bad this wasn't documented anywhere I could find.