# Sovol SV08 print head front cover fell off, damaged extra\_mcu board **URL:** \ **Category:** Sovol SV08\ **Created:** [October 28, 2024, 1:00pm UTC](https://forum.sovol3d.com/t/sovol-sv08-print-head-front-cover-fell-off-damaged-extra-mcu-board/5886 "2024-10-28T13:00:48Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![NuGeo](https://avatars.discourse-cdn.com/v4/letter/n/b5ac83/32.png) [@NuGeo](https://forum.sovol3d.com/u/NuGeo)\ **Post date:** [October 28, 2024, 1:00pm UTC](https://forum.sovol3d.com/t/sovol-sv08-print-head-front-cover-fell-off-damaged-extra-mcu-board/5886/1 "2024-10-28T13:00:48Z")
Hi All, first time for me in this forum. I bought a SV08, it’s only weeks old and the front blue cover (held on with 4 magnets) came off during a print and was pulled well clear of the print head. When that happened, the connector on the extra\_mcu board for the front fan (P1) was torn off the board. I see there is a spare connector on the board marked P2/Fan3, I’m hoping there is a way to use that connector as a substitute. I tried plugging the fan into P2/Fan3, the pin out drawing says it’s the same as P1, but it does not drive the fan. Does anyone know if there is a way to enable the Fan3/P2 connector for the front fan? I am unable to upload the pictures to help with the explanation, the forum say new users cannot upload. This link helps a bit, you will see the are 2 x Fan3 connectors, bottom right Fan3 connector is the one that was torn off, top right is the one I’m hoping to use as a subsittute ([SV08/Motherboard/Extra\_PIN\_definition.pdf at main · Sovol3d/SV08 · GitHub](https://github.com/Sovol3d/SV08/blob/main/Motherboard/Extra_PIN_definition.pdf)) ---
**Author:** ![Lion](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/lion/32/5586_2.png) [@Lion](https://forum.sovol3d.com/u/Lion)\ **Post date:** [October 28, 2024, 2:36pm UTC](https://forum.sovol3d.com/t/sovol-sv08-print-head-front-cover-fell-off-damaged-extra-mcu-board/5886/2 "2024-10-28T14:36:33Z")
Send an email to Sovol explaining what happened, being a month old printer they might send you a board. [info@sovol3d.com](mailto:info@sovol3d.com) ---
**Author:** ![mistral](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/mistral/32/2118_2.png) [@mistral](https://forum.sovol3d.com/u/mistral)\ **Post date:** [October 28, 2024, 2:52pm UTC](https://forum.sovol3d.com/t/sovol-sv08-print-head-front-cover-fell-off-damaged-extra-mcu-board/5886/3 "2024-10-28T14:52:18Z")
I agree with Lion, ask the support for replacement. That is not expected for a new regular printer. BTW, that should works and if I dont mistake that is already preconfigured like that. I may confirm it tomorrow evening or provide the config to help for this workaround. In anyway, take care of the wire positioning (that will be close to the nozzle, do not burn the wires!). ---
**Author:** ![NuGeo](https://avatars.discourse-cdn.com/v4/letter/n/b5ac83/32.png) [@NuGeo](https://forum.sovol3d.com/u/NuGeo)\ **Post date:** [October 28, 2024, 2:54pm UTC](https://forum.sovol3d.com/t/sovol-sv08-print-head-front-cover-fell-off-damaged-extra-mcu-board/5886/4 "2024-10-28T14:54:14Z")
Thanks, I did email Sovol, because I bought the printer through AliExpress they will not support it, not even to offer any advice on using the spare port. I ordered a new printhead (~$100) in the meantime but that will take weeks to arrive. I’m hoping to find a work around to get the printer going again. ---
**Author:** ![NuGeo](https://avatars.discourse-cdn.com/v4/letter/n/b5ac83/32.png) [@NuGeo](https://forum.sovol3d.com/u/NuGeo)\ **Post date:** [October 28, 2024, 2:54pm UTC](https://forum.sovol3d.com/t/sovol-sv08-print-head-front-cover-fell-off-damaged-extra-mcu-board/5886/5 "2024-10-28T14:54:55Z")
That would be a great help - many thanks ---
**Author:** ![kampfwuffi](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/kampfwuffi/32/2214_2.png) [@kampfwuffi](https://forum.sovol3d.com/u/kampfwuffi)\ **Post date:** [October 28, 2024, 10:15pm UTC](https://forum.sovol3d.com/t/sovol-sv08-print-head-front-cover-fell-off-damaged-extra-mcu-board/5886/6 "2024-10-28T22:15:58Z")
In printer.cfg in Klipper → Device → Machine are all fan settings. There should be a section added for the second fan connector, if it is really a fan connector. Or better change only fan connector name PA1 of original mcu printhead fan script to PA2? Be sure to be at mcu fan settings and not mainboard fan settings. Haven‘t tried it myself, so at oen risk. ---
**Author:** ![sovol3d](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/sovol3d/32/9_2.png) [@sovol3d](https://forum.sovol3d.com/u/sovol3d)\ **Post date:** [October 29, 2024, 2:26am UTC](https://forum.sovol3d.com/t/sovol-sv08-print-head-front-cover-fell-off-damaged-extra-mcu-board/5886/7 "2024-10-29T02:26:40Z")
Hello. Can you give me your order number and e-mail account by message. I contact the customer service to deal with the problem ---
**Author:** ![NuGeo](https://avatars.discourse-cdn.com/v4/letter/n/b5ac83/32.png) [@NuGeo](https://forum.sovol3d.com/u/NuGeo)\ **Post date:** [October 29, 2024, 7:29am UTC](https://forum.sovol3d.com/t/sovol-sv08-print-head-front-cover-fell-off-damaged-extra-mcu-board/5886/8 "2024-10-29T07:29:07Z")
Hi Kampfwuffi - many thanks, below is my fan config from printer.cfg. I see the only reference to PA1 is in the [heater\_fan hotend\_fan] section, extra\_mcu:PA1 is used for the tacho pin, there is no other reference to PA1 in my printer.cfg In the “[fan\_generic fan1] # front model cooling fan” section uses extra\_mcu:PB1. Is this the correct section for the front fan, mounted on the blue front cover? I was thinking of changing extra\_mcu:PB1 to extra\_mcu:PB0 - I see in the pin out PDF above that P2/Fan3 and P1/Fan4 are both labelled as PB0. Am I likely to damage anything by doing this? happy to give it a try. [fan\_generic fan0] # back model cooling fan pin: extra\_mcu:PA7 max\_power: 1.0 [fan\_generic fan1] # front model cooling fan pin: extra\_mcu:PB1 max\_power: 1.0 [controller\_fan fan\_generic fan3] # exhaust fan pin: PA2 heater: heater\_bed idle\_timeout: 20 [heater\_fan hotend\_fan] pin: extra\_mcu:PA6 max\_power: 1.0 kick\_start\_time: 0.5 heater: extruder heater\_temp: 45 tachometer\_pin:extra\_mcu:PA1 tachometer\_ppr: 1 tachometer\_poll\_interval: 0.0013 ---
**Author:** ![NuGeo](https://avatars.discourse-cdn.com/v4/letter/n/b5ac83/32.png) [@NuGeo](https://forum.sovol3d.com/u/NuGeo)\ **Post date:** [October 29, 2024, 7:40am UTC](https://forum.sovol3d.com/t/sovol-sv08-print-head-front-cover-fell-off-damaged-extra-mcu-board/5886/9 "2024-10-29T07:40:43Z")
Hi Sovol3D, many thanks for the offer and I really appreciate that. As mentioned above I bought the printer through AliExpress, Order ID 3041457555465634 placed Sept 11 2024. Again today I received a mail from [info@sovol3d.com](mailto:info@sovol3d.com) saying they cannot offer any support. OK, accepted so I ordered and paid for a new print head, but perhaps you can persuade the support team just to give me advice on how to enable the P2/Fan3 port so I can use it as a substitute for P1/Fan4 port which was torn off the extra\_mcu board. I will reply to your email so you have my email address, let me know if that works. - thanks again. ---
**Author:** ![NuGeo](https://avatars.discourse-cdn.com/v4/letter/n/b5ac83/32.png) [@NuGeo](https://forum.sovol3d.com/u/NuGeo)\ **Post date:** [October 29, 2024, 7:45am UTC](https://forum.sovol3d.com/t/sovol-sv08-print-head-front-cover-fell-off-damaged-extra-mcu-board/5886/10 "2024-10-29T07:45:12Z")
Good morning, Thank you for the offer, I posted my reply in the forum. Please use my email address: [gw@whalesway.co.uk](mailto:gw@whalesway.co.uk) If your technical team can just give me advice on how to enable the spare fan port P2/Fan3 I would be grateful. They say it isn’t enabled but surely there must be a way. Thank you ---
**Author:** ![NuGeo](https://avatars.discourse-cdn.com/v4/letter/n/b5ac83/32.png) [@NuGeo](https://forum.sovol3d.com/u/NuGeo)\ **Post date:** [October 29, 2024, 9:55am UTC](https://forum.sovol3d.com/t/sovol-sv08-print-head-front-cover-fell-off-damaged-extra-mcu-board/5886/11 "2024-10-29T09:55:09Z")
Hi all - thanks for the help so far. I have had 2 emails back today from Sovol and the AliExpress support saying that P2/Fan3 cannot be used, it has not been enabled. Looks like I will have to wait for the replacement printhead to arrive Thanks anyway ---
**Author:** ![wrusman](https://avatars.discourse-cdn.com/v4/letter/w/8dc957/32.png) [@wrusman](https://forum.sovol3d.com/u/wrusman)\ **Post date:** [October 29, 2024, 10:44am UTC](https://forum.sovol3d.com/t/sovol-sv08-print-head-front-cover-fell-off-damaged-extra-mcu-board/5886/12 "2024-10-29T10:44:33Z")
The cover is very easily detached, in my case it ripped off the connector from the fan. I managed to repair it with some other fan I had laying around. Does anyone know what type of connector is used ? that way I can already but some in advance for future repairs 😅 ---
**Author:** ![mistral](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/mistral/32/2118_2.png) [@mistral](https://forum.sovol3d.com/u/mistral)\ **Post date:** [October 29, 2024, 9:55pm UTC](https://forum.sovol3d.com/t/sovol-sv08-print-head-front-cover-fell-off-damaged-extra-mcu-board/5886/13 "2024-10-29T21:55:48Z")
> Does anyone know what type of connector is used ? That is a JST 1.25. That is the femal or the male who was broken ? I broken too my male plug and i bought a set like this one (it’s easier with wire included). ![image](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/4/4f38d0f30e4c59a07cf7ec1e4f477e3480da88df.jpeg) Look for “Micro JST 1.25 3P” (you need 3 pins, i only found a picture with 2 but it’s the same). > Sovol and the AliExpress support saying that P2/Fan3 cannot be used That is very strange because if i read well the documentation the FAN is plugged to Fan3/PA3 and there are 2 port one the card for it. But they know better how it’s works. The only thing that i can tell is that I already plugged my fan on the secondary FAN3 connector without trouble (but i cannot unsure the validity for long period of usage, maybe there is a limitation for that). ---
**Author:** ![NuGeo](https://avatars.discourse-cdn.com/v4/letter/n/b5ac83/32.png) [@NuGeo](https://forum.sovol3d.com/u/NuGeo)\ **Post date:** [October 30, 2024, 7:25am UTC](https://forum.sovol3d.com/t/sovol-sv08-print-head-front-cover-fell-off-damaged-extra-mcu-board/5886/14 "2024-10-30T07:25:47Z")
Thanks Mistral, I tried the 2nd Fan3 (top right) port and the fan did not work, probably the board is damaged, perhaps by damaging one of the Fan3 ports both become inactive. ---
**Author:** ![mich0111](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/mich0111/32/1176_2.png) [@mich0111](https://forum.sovol3d.com/u/mich0111)\ **Post date:** [October 30, 2024, 12:34pm UTC](https://forum.sovol3d.com/t/sovol-sv08-print-head-front-cover-fell-off-damaged-extra-mcu-board/5886/15 "2024-10-30T12:34:38Z")
Hello, You can first test the pins with a controller before change the board.