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I'll get back to you guys tomorrow (when I have access to it and can do these new tests), but thanks today for your help so far!

I guess last questions would be:
1. Where can I find the knob for adjusting the voltage to the bed heater?

2. Does this seem for sure the fuse as an issue?

Also, when checking from the RAMBo I get 12.1 across the hot end terminals.

And I confirmed again, while trying to heat up the nozzle I get 12.1 V across the fuse and I also get 12.1 volts across the entire block by measuring from the two wires with the solder sticking out from the board

Will a blown fuse also be visible to the eye?

Here should be the image. I measured across the second from the left thick red wire and the thick black wire on the right

So I should at least replace the fuse. On the metal box (the power supply I believe?) I am getting 12.36, how do I attach a picture (I'll look after I finish this post)

Thanks! I'll clarify... On the power supply (atleast the metal box at the bottom) there is a 115 and 230. From where I read on earlier posts (and yours) I should have it at 115 which is its current setting. For the fuse I also got the closed/open confused. If I am understanding correctly, do you ...

Shouldn't the voltage across the fuse be normal unless it is blown at which point it should be 0 because it is now closed?

I'm not seeing a knob on the heater, where exactly can that be found?

I see on the side of the heater there is a 115 and a 230, should I push it so that the 230 is available?

Thank you all! I will look into this and get back as soon as posible

When trying to heat up both the nozzle and the bed on our labs Rostock Max v3, there are a couple errors. 1. Our hot bed won't get above 82, and even with a cloth on top, not much more than that. I read that it should get up to 100 C, but that doesn't seem possible currently. Is there a way to fix ...