Sevcon Service & Repair Forum
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 that needs to be done?
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- Sevcon → Sevcon MOS90 631/46002 ↗
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.
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Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
Phone: 1-336-969-0110
Recent 130 Comments
The Sevcon MOS90 631/46002 is showing error code E231. Power supply failure preventing equipment operation. Urgently need technician assistance to diagnose and resolve issue to minimize downtime.
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My Sevcon MOS90 631/46002 power supply unit is not functioning properly. Looking for a tech who can repair industrial units like this.
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Hello, I am interested in purchasing a Sevcon MOS90 631/46002 Power Supply. I am not entirely sure if this is the correct model, but my team suggested reaching out to inquire about pricing and availability. I am looking to source this unit quickly. Thank you.
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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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Drive failure reported on Sevcontrol MOS90 631/40038 controller. Need immediate attention to troubleshoot and replace.
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The Sevcontrol MOS90 631/40164 power supply unit in the warehouse is exhibiting unusual behavior - not functioning as it typically does.
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Could you please confirm if the Sevcon MOS90 631/46002 - Power Supply unit is still supported or if replacement parts are available? Thank you.
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Do you have a Sevcon MOS90 631/46002 Power Supply unit available for sale or repair? Our production is currently down, and we rely on your support to keep it running smoothly.
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Could you please confirm if the Sevcon MOS90 631/46002 power supply unit is still supported or if replacement parts are available? The unit is older, and we are unsure about the manufacturer. Thank you.
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Could you please confirm if the Sevcon MOS90 631/40277 can be repaired or if a replacement can be purchased? I'm trying to check this off my to-do list. Thank you!
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I need assistance with repairing my Sevcontrol MOS90 631/40164 power supply unit. Our production is stalled, and I'm hoping you can provide a solution. Do you have a replacement unit available for sale or repair?
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Hello, I am reaching out regarding Sevcon MOS90 631/46002, which is a Power Supply unit. My client is experiencing issues with it and needs some information on repair services. Can you please provide details on troubleshooting and repair options available for this specific model? Thank you. —> …Purchase or Repair: 
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The Sevcon MOS90 631/46002 unit is not functioning properly and requires maintenance attention.
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Sevcon MOS90 631/46002 power supply failure on one of the drives or boards. Need immediate attention to prevent downtime.
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Hey, the Sevcon MOS90 631/40277 power supply unit went down mid-shift. Needs attention ASAP. Thanks!
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Hello, I have a client in need of assistance with a Sevcontrol MOS90 631/40164 power supply. They are experiencing some issues with it. Can you please provide some information on troubleshooting and repair options? Thank you.
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The Sevcon MOS90 631/46002 experienced a power supply issue, resulting in downtime. This occurred earlier today during the morning shift. I would appreciate a
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My Sevcon MOS90 631/40277 unit is not providing power. Need assistance or technician to repair. Thank you.
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I can assist you with finding information on the Sevcon MOS90 631/46002 Power Supply unit. I will inquire about its current support status and the availability of replacement parts for you.
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Can the Sevcon MOS90 631/46002 power supply be repaired or bought? Seeking to check this off my to-do list.
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Seeking repair for Sevcon MOS90 631/46002 power supply unit. Unit is not functioning properly. Need help from a skilled technician to troubleshoot and repair it
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The Sevcon MOS90 631/46002 unit in the warehouse is behaving unusually. It's not functioning as expected, exhibiting erratic behavior.
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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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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.
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I'd like to inquire about the pricing and availability of the Sevcon MOS90 631/46002 Power Supply unit. My team recommended I reach out to you regarding this. I am hoping to source one quickly. Thank you!
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Hello, Do you have repair information available for a Sevcon MOS90 631/41063 controller that needs a replacement? It stopped working, and we need a quick solution. Your
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The Sevcon MOS90 631/46002 is not functioning properly and requires attention from the maintenance team.
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Our Sevcon MOS90 631/46002 unit experienced a power supply issue causing downtime today at 345 PM. Need quick resolution before the next shift starts. Thank you.
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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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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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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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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.
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Inquiry about Sevcon 150-14680 REV B Fuse Board Repair or SaleHello,I hope you are doing well. I am reaching out regarding a Sevcon 150-14680 REV B Fuse Board that I was asked to inquire about. Unfortunately, the person who provided me with this information did not give me any details or description…Purchase or Repair: 
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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.
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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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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.
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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.
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Can the Sevcon MOS90 631/46002 Power Supply be repaired or bought? I'm trying to check this off my to-do list. Thank you!
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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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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.
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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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I need an update on the Sevcon MOS90 631/46002 power supply. The unit is still down. Please reply
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One of the Sevcontrol MOS90 631/40164 boards just went down. Need to troubleshoot and replace ASAP to get back up and running.
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Hello, my client is having issues with a Sevcontrol MOS90 (part number 631/40164) related to the power supply. Can you provide information on troubleshooting steps or potential repairs for this? Thank you.
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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
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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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