Sevcon Service & Repair Forum
I have a Sevcon MOS90 631/40277 industrial unit that is not powering up. Looking for a repair technician to fix it as soon as possible.
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- Sevcon → Sevcon MOS90 631/46002 ↗
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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
124 Five Forks Dr PMB #208
King, NC 27021
Phone: 1-336-969-0110
Recent 130 Comments
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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The Sevcontrol MOS90 631/40164 power supply unit is not functioning properly. Maintenance team needs assistance. Thank you.
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The Sevcon MOS90 631/40277 power supply unit is not working as reported from the shop.
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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.
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The Sevcon MOS90 631/41063 controller is displaying error code E5. Equipment not responding, possible issue with control board. Please advise on troubleshooting steps or repair needed. Thank you.
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The Sevcon MOS90 631/46002 power supply unit in the warehouse is behaving unusually. It is not functioning as it normally does, exhibiting erratic or strange behavior.
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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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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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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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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.
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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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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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The Sevcon MOS90 631/46002 is not functioning properly and requires attention from the maintenance team.
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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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The Sevcon MOS90 631/40277 unit has failed - issue with the power supply. Needs attention ASAP.
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The Sevcon MOS90 631/41063 unit is not functioning properly. Please investigate and provide assistance.
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Hello,my friends PCB burned out. Can you send me the PCB gerber data and possibly also the bill of materials? I can make a new PCB myself.ThanksMarcel
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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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Is the Sevcon MOS90 631/40277 still supported or are replacement parts available for repair?
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Drive failure reported on Sevcontrol MOS90 631/40038 controller. Need immediate attention to troubleshoot and replace.
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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, 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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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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The Sevcon MOS90 631/46002 is still down and I need assistance with the power supply. Please provide a response this time.
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I'm having trouble with the Sevcon MOS90 631/40277. It seems to be related to the power supply, but I'm not exactly sure. The machine stopped working and I'm not sure how to fix it.
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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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the Sevcontrol MOS90 631/40164 unit acting as a power supply went down mid-shift. Needs attention ASAP. Thanks.
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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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The Sevcontrol MOS90 631/40164 power supply unit is not functioning as expected. It is exhibiting abnormal behavior that is unfamiliar to me.
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One of the Sevcon MOS90 631/46002 power supplies has failed during maintenance rounds. Need to address immediately to keep machines running.
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Can the Sevcon MOS90 631/40277 power supply be repaired or bought? I'm trying to check this off my to-do list.
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Can the Sevcon Millipak Control Unit be repaired or replaced? Trying to check it off your to-do list.
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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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We are experiencing power supply issues with the Sevcon MOS90 631/46002, impacting our production line. Urgent repair service is required to rectify the problem and resume normal operations
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Can you provide me with a timeline of the issue or the parts you've tried to fix it if you have?
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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 apologize for the inconvenience, but there seems to be an issue with the power supply unit of your Sevcon MOS90 631/40277. It's possible that this is causing the machine to stop working as expected. I recommend contacting a technician to diagnose and resolve the problem.
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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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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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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: 
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The Sevcon MOS90 631/46002 unit is not functioning properly and requires maintenance attention.
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The Sevcon MOS90 631/46002 unit appears to be a power supply. It is currently not functioning properly, and assistance from the maintenance team is needed.
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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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Hello, I am inquiring about Sevcon MOS90 631/46002, which is a power supply. My client is experiencing issues with this part and would like to get more information on repair options. Thank you.
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The Sevcon MOS90 631/46002 unit is currently not functioning. Maintenance team needs assistance with it.
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Do you have a Sevcon MOS90 631/41063 controller available for sale or repair? This unit is crucial for our production. Your
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