Hi,
I hope this is the right placa to ask. If not then I apologize!
I have a webasto thermo top v, where the polarity was mixed so + got -.
This resulted in a big spark when connected, and after a few seconds wires was hot hot! It was disconnected after only a few seconds. After this the polarity was corrected and I wasn't able to connect to it with the computer.
So, I opened it up and took out the circuit board and had a look at it. Everything looks fine except a diode (that's what I found out it was) with the name 5KP30A.
Its fried.
After reading about diodes, I found out there are several types with different functions. But I don't know what type mine is though.
But I haven't succeeded in finding out what makes this thing blow up.. Is it because the reversed polarity?
Some of these where supposed to protect against this.. But will that mean it protects by blowing up?
As you probably understand, this isn't things I know much about, I work with concrete at a daily basis.
But I like to investigate and possibly repair things like this. If I'm able to do it myself.
So I have ordered a new one with the same name, and I hope that this might fix it. I just have to try.
But I still wondering why it blew up, if it's supposed to protect.. It doesn't make sense to me..
Hope somebody can help!
Regards
Fredrik
I hope this is the right placa to ask. If not then I apologize!
I have a webasto thermo top v, where the polarity was mixed so + got -.
This resulted in a big spark when connected, and after a few seconds wires was hot hot! It was disconnected after only a few seconds. After this the polarity was corrected and I wasn't able to connect to it with the computer.
So, I opened it up and took out the circuit board and had a look at it. Everything looks fine except a diode (that's what I found out it was) with the name 5KP30A.
Its fried.
After reading about diodes, I found out there are several types with different functions. But I don't know what type mine is though.
But I haven't succeeded in finding out what makes this thing blow up.. Is it because the reversed polarity?
Some of these where supposed to protect against this.. But will that mean it protects by blowing up?
As you probably understand, this isn't things I know much about, I work with concrete at a daily basis.
But I like to investigate and possibly repair things like this. If I'm able to do it myself.
So I have ordered a new one with the same name, and I hope that this might fix it. I just have to try.
But I still wondering why it blew up, if it's supposed to protect.. It doesn't make sense to me..
Hope somebody can help!
Regards
Fredrik