Sevcon Service & Repair Forum
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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Recent 130 Comments
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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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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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 631/46002 Power Supply unit is still supported or if replacement parts are available for it? Thank you.
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The Sevcon MOS90 631/40277 power supply unit is not working as reported by someone in the shop.
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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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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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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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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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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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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
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We still have not received any response regarding the Sevcon MOS90 631/46002 unit being down. Please provide an update immediately.
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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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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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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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Sevcontrol MOS90 631/40164 power supply issue, affecting production line. Urgent repair needed to minimize downtime. Kindly address immediately to ensure operations resume
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The Sevcon MOS90 631/46002 is not functioning properly and requires attention from the maintenance team.
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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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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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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 Sevcontrol MOS90 631/40164 power supply unit in the warehouse is exhibiting unusual behavior - not functioning as it typically does.
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The Sevcon MOS90 631/40277 unit has failed - issue with the power supply. Needs attention ASAP.
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One of the drives/boards in Sevcontrol MOS90 631/40164 power supply failed. Will troubleshoot further and update on the status ASAP.
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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.
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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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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 631/46002 Power Supply be repaired or bought? I'm trying to check this off my to-do list. Thank you!
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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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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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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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Is the Sevcon MOS90 631/40277 still supported or are replacement parts available for repair?
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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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We experienced downtime due to a power supply issue with the Sevcontrol MOS90 631/40164. Need a quick explanation of what happened and when it occurred. Shift change is imminent.
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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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One of the Sevcon MOS90 631/46002 drives or boards is down, affecting the power supply. Need immediate attention to diagnose and resolve the issue.
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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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The Sevcon MOS90 631/46002 unit is currently not functioning. Maintenance team needs assistance with it.
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I need an update on the status of the Sevcon MOS90 631/46002 power supply. The unit is still down. Please provide a
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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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The Sevcon MOS90 631/40277 unit is not working and is related to power supply.
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We are experiencing power supply issues with the Sevcon MOS90 631/46002, impacting the production line. Urgent repair service needed to resolve the problem swiftly. Please prioritize this issue to minimize disruption.
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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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Drive failure reported on Sevcontrol MOS90 631/40038 controller. Need immediate attention to troubleshoot and replace.
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We experienced downtime due to an issue with the Sevcon MOS90 631/40277 unit, specifically with the power supply. This occurred earlier today and I'm seeking a quick resolution before the next shift begins. Thank you.
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