Sevcon Service & Repair Forum

Can the Sevcon MOS90 631/40277 power supply be repaired or purchased? I'm trying to check this off my to-do list.

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— Posted by Goeda on 2013-05-25

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If you need your Sevcon unit tested or repaired,
give us a call at 1-336-969-0110.
Estimates are free with an approved repair. Declined or unrepairable units are subject to a $75 evaluation, handling, and standard return-shipping fee. Extended warranties may be available.
Shipping/Receiving:
Industrial Electronic Repair
124 Five Forks Dr PMB #208
King, NC 27021
Phone: 1-336-969-0110


Recent 130 Comments

#Sevcon by harper on 2012-11-21 17:47
Hello, I am reaching out on behalf of my client who is experiencing an issue with their Sevcon MOS90 631/46002, described as a power supply problem. Can you please provide assistance or information regarding this matter? Thank you.

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#Sevcon by PeterArres on 2013-08-13 03:35
Hello, do you have a Sevcon MOS90 631/40277 power supply available for sale or repair? We need it urgently to keep production running. Thank you.

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#Sevcon by Premanku on 2012-03-24 09:23
I'm having trouble with the Sevcon MOS90 631/46002, specifically related to the power supply. I'm not entirely sure what the issue is, but something seems to have stopped working. Any guidance or support you can provide would be greatly appreciated.

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#Sevcon by Royal on 2012-04-12 21:31
Could you please confirm if the Sevcon MOS90 631/46002 Power Supply unit is still supported or if replacement parts are available for it? Thank you.

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#Sevcon by McGeady on 2012-06-28 09:01
I'm following up again regarding the Sevcon MOS90 631/46002 that is still down. Urgent attention is needed. Please provide an update

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#Sevcontrol by Dincic on 2013-10-02 14:55
My Sevcontrol MOS90 631/40164 power supply unit is malfunctioning. Looking for a repair technician to resolve the issue

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#Sevcontrol by Bujarski on 2013-07-18 19:55
The Sevcontrol MOS90 631/40164 power supply isn't working as per the message from the shop.

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#Sevcon by donnie rasnake on 2012-06-23 23:35
Can the Sevcon MOS90 631/46002 power supply be repaired or bought? I'm trying to address this on my to-do list.

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#Sevcon by Dan Brock on 2026-06-02 18:02
I have a 4 wheel drive bad boy buggies that i changed from lead acid to lithium and now the machine wont move . I get a code on my sevcon 633T45320 controler that indicates either the motor is bad or the contactors are bad. I ve replaced both and i still gat the code. Wondering if there is a reset t…Purchase or Repair: Ticket Image...
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#Sevcon by GUSTAVO CARRERA on 2014-12-28 00:00
the Sevcon Millipak 633T45312 controller in Unit X went down mid-shift. Need someone to check it out ASAP in the morning. Thanks!

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#Sevcon by Kingsley Beck on 2012-04-08 19:47
The Sevcon MOS90 631/46002 power supply component is failing, causing a disruption on the production line. Please address this issue urgently to minimize downtime. Thank you.

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#Sevcontrol by hamid on 2013-10-19 23:07
the Sevcontrol MOS90 631/40164 power supply unit went down mid-shift. Please check it out first thing in the morning. Thanks!

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#Sevcontrol by Zuccarelli on 2016-07-10 20:16
Drive failure reported on Sevcontrol MOS90 631/40038 controller. Need immediate attention to troubleshoot and replace.

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#Sevcon by Olimpiu on 2013-02-11 05:39
The Sevcon MOS90 631/40277 power supply unit is not working as reported from the shop.

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#Sevcon by jean on 2013-04-04 23:28
Looking for someone to repair a Sevcon MOS90 631/40277 power supply unit.

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#Sevcon by Giampiero Di Marco on 2012-04-21 00:09
We experienced downtime due to an issue with the Sevcon MOS90 unit 631/46002, specifically related to the power supply. This occurred during the current shift, and I'm reaching out for further guidance before the next shift starts. Thank you.

—> Purchase or Repair:
#Sevcon by Pavlicek on 2006-12-11 00:00
My Sevcon Millipak controller is not powering on, and the machinery it controls is non-functional. Looking for a technician who can diagnose and repair the issue

—> Purchase or Repair:
#Sevcon by medel on 2012-06-10 05:36
the Sevcon MOS90 631/46002 unit that handles the power supply went down mid-shift. Need someone to take a look ASAP in the morning.

—> Purchase or Repair:
#Sevcon by Izham on 2012-03-20 16:56
Hello, I'm interested in purchasing a Sevcon MOS90 631/46002 Power Supply. Could you please provide information on pricing and availability? I am looking to source one quickly. Thank you!

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#Sevcon by SMAILL TABRIZI on 2015-08-14 02:20
Sevcon MOS90 631/41063 Controller not responding.

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#Sevcon by Edgar Rodriguez on 2013-03-16 20:15
My Sevcon MOS90 631/40277 is still down and in need of assistance. Please respond

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#Sevcon by James Dodds on 2013-06-17 10:16
The Sevcon MOS90 631/40277 power supply unit isn't working as reported.

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#Sevcon by Rodger Jarrett on 2012-01-01 20:53
Can this Sevcon MOS90 631/46002 power supply unit be repaired or bought as a replacement? Just trying to resolve this as part of completing my to-do list.

—> Purchase or Repair:
#Sevcontrol by IDONGESIT EKPO on 2013-08-04 19:32
The Sevcontrol MOS90 631/40164 power supply unit is not functioning properly. Maintenance team needs assistance. Thank you.

—> Purchase or Repair:
#Sevcon by Jack M Hughey on 2012-01-04 19:51
The Sevcon MOS90 631/46002 unit is currently not functioning. Maintenance team needs assistance with it.

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#Sevcon by kurnianto on 2013-04-14 04:31
Can the Sevcon MOS90 631/40277 power supply be repaired or bought? I'm looking to check this off my to-do list.

—> Purchase or Repair:
#Sevcon by Garry S James on 2012-01-22 09:23
We still have not received any response regarding the Sevcon MOS90 631/46002 unit being down. Please provide an update immediately.

—> Purchase or Repair:
#Sevcon by Tuckwood on 2012-02-01 15:21
Hi, do you have a Sevcon MOS90 631/46002 available for sale or repair? Our unit has gone down, and it's affecting our production. Thank you.

—> Purchase or Repair:
#Sevcontrol by it on 2013-08-06 19:32
My Sevcontrol MOS90 631/40164 power supply is malfunctioning and needs repair. Looking for a qualified technician to fix it as soon as possible. Thank you.

—> Purchase or Repair:
#Sevcon by Nosowicz on 2012-08-19 13:07
Can you please provide more information about the Sevcon MOS90 631/46002 power supply unit so I can check if it is still supported and if replacement parts are available?

—> Purchase or Repair:
#Sevcon by DIEGO SCIUTTO on 2012-12-03 20:43
The Sevcon MOS90 631/46002 unit is not functioning properly and requires maintenance attention.

—> Purchase or Repair:
#Sevcon by persuno on 2012-01-16 09:36
My Sevcon MOS90 631/46002 power supply unit is not functioning properly. Looking for a tech who can repair industrial units like this.

—> Purchase or Repair:
#Sevcontrol by KOLLEY on 2013-02-11 06:39
Sevcontrol MOS90 631/40164 seems to be down due to a power supply issue. No power, no lights, and no response from the equipment. Please advise on the possible cause and solution.

—> Purchase or Repair:
#Sevcon by GABON on 2012-06-11 07:05
Hello, our Sevcon MOS90 631/46002 power supply is displaying error code 3F. The equipment is not powering up at all. Kindly advise on troubleshooting steps. Thank you.

—> Purchase or Repair:
#Sevcon by McDaid on 2012-08-02 05:55
Hi there, can you provide repair information for a Sevcon MOS90 631/46002 Power Supply unit? It has stopped working and we need a replacement. Thank you.

—> Purchase or Repair:
#Sevcon by Brill on 2012-11-19 18:03
The Sevcon MOS90 631/46002 is not functioning properly and requires attention from the maintenance team.

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#Sevcontrol by byers on 2013-10-31 14:12
One of the Sevcontrol MOS90 631/40164 boards just went down. Need to troubleshoot and replace ASAP to get back up and running.

—> Purchase or Repair:
#Sevcon by Tanwarr on 2012-08-02 10:55
Could you please provide any additional information about the Sevcon MOS90 631/46002 power supply so we can check if it's still supported and if replacement parts are available? Thank you.

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#Sevcontrol by joseph ugwuneke on 2013-11-02 11:52
Machine not turning on.

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#Sevcon by Ing. Omar Martinez on 2020-10-16 17:53
: Our industrial unit, a 10,000 sq ft facility used to manufacture high-pressure hydraulic pumps, has experienced a catastrophic failure in its main control system, rendering it completely unusable. Since the control system is crucial for ensuring safe and efficient operation of the machinery, our p…Purchase or Repair: Ticket Image...
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#Sevcontrol by melanie hamilton on 2016-12-06 13:32
I am following up on my previous message regarding the Sevcontrol MOS90 631/40038 unit being down. It is crucial that someone addresses this issue

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#Sevcon by idioksgafsike on 2015-07-22 16:20
The Sevcon MOS90 631/41063 unit is not functioning properly. Please investigate and provide assistance.

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#Sevcon by Rouillard on 2013-07-16 12:44
Sevcon MOS90 631/40277 power supply issue affecting the production line. Urgently need repair service to resolve.

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#Sevcon by Carlos Garcia on 2012-02-18 15:17
Sevcon MOS90 631/46002 power supply not producing any voltage.

—> Purchase or Repair:
I need an update on the status of the Sevcon MOS90 631/46002 Power Supply. The unit is still down, and I require a response

—> Purchase or Repair:
#Sevcon by Goeda on 2013-05-25 06:24
Can the Sevcon MOS90 631/40277 power supply be repaired or purchased? I'm trying to check this off my to-do list.

—> Purchase or Repair:
#Sevcon by MIKALEF on 2012-08-12 20:45
I'm experiencing issues with the Sevcon MOS90 631/46002 model related to the power supply. Something seems to have stopped working, and I'm unsure of the exact problem. Any assistance you could provide would be greatly appreciated.

—> Purchase or Repair:
#Sevcon by Pallo on 2013-01-30 22:47
Sevcon MOS90 631/40277 power supply is now down. Error code 12 appears on the screen. Please advise on the next steps to resolve this issue

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#Sevcon by Mario Carabelli on 2012-11-01 11:34
Hello, I'm inquiring about part number Sevcon MOS90 631/46002, labeled as a power supply. Can you provide more information about this component and the repair process? Thank you.

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#Sevcon by Surma on 2015-01-10 23:41
I'm currently experiencing an issue with the Sevcon MOS90 631/41063 controller. I'm unsure of the specifics, but something seems to have stopped working. Any assistance would be greatly appreciated.

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🚑Shop Location🛠️

Industrial Electronic Repair
124 Five Forks Dr PMB #208
King, NC 27021
🚑 Rush repair shipments only — no walk-ins.

📞Phone

1-336-969-0110

📦Mailing Address🚛

Industrial Electronic Repair
124 Five Forks Dr PMB #208
King, NC 27021
📦 Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.