Siemens Service & Repair Forum
I'm sorry to hear about the issue with your Siemens 685139 E1721-A88 circuit board. It seems like something has stopped working, but I'm not entirely sure what the problem is. I recommend contacting a technician to diagnose and fix the issue
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If you need your Siemens unit tested or repaired,
give us a call at 1-336-969-0110.
We offer free estimates and extended warranties on the work performed.
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Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
Phone: 1-336-969-0110
Recent 121 Comments
Hello,Thank you for reaching out. It sounds like the Siemens 6av6-643-0ba01-1ax0 unit in the warehouse is exhibiting unusual behavior. Could you please provide more details on what specifically is happening? For example, is the display not working properly, are buttons unresponsive, or is there any …Purchase or Repair: 
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Hi there, I hope you're doing well. I was asked to look into fixing or replacing the Siemens 6es5944-7ua22, however, I'm not quite sure what it does. Can this item be repaired or purchased? I'm just trying to check this off my to-do list. Thank you!
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Siemens 6es5-421-8ma12 showing no power, not responding to inputs. Need urgent repair assistance.
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The Siemens 6ES7 314-1AE83-0AB0 S7 module is not working. Please check and repair as needed. Thank you.
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Received alert for Siemens g22901-d0058-l-a1 drive or board failure. Will investigate and resolve ASAP.
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Can the Siemens 6SN1130-1AD11-0AA0 be repaired or bought? Just trying to check this off my to-do list.
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Sure! Could you please provide more details on how the Siemens 6SN1118-0NH00-0AA1 611 Servo Control Module is acting weird? Some common issues include erratic movements, unusual sounds, error messages on the display, or failure to respond to commands. The more specific information you provide, the b…Purchase or Repair: 
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Hello, I am interested in purchasing a Siemens 6ES7 458-1XX00-6YB4 S7 Module. I'm not 100% sure if this is the correct model; my team recommended I inquire with you. Could you provide information on pricing and availability? I'm hoping to source one quickly. Thank you.
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Siemens EK-75-10-3-B equipment is down. Showing error code Hammersteuer Ung on the Controller Module. Need urgent repair. Please advise.
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the Siemens 6se7026-0ud71 unit went down mid-shift. Unknown issue. Please investigate and follow up during the day. Thanks!
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Experiencing error code E1721-A88 on Siemens 685139 circuit board. Equipment currently down, urgent repair needed to resume operations.
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The Siemens 6ES5 242-1AA32 experienced a malfunction today, causing downtime in the production unit. The issue occurred at 1130 AM and is critical for our operations. Any quick information on what went wrong would be greatly appreciated before the next shift. Thank you.
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The circuit board of our Siemens 685139 E1721-A88 is malfunctioning, causing a significant disruption in our production line. This issue needs urgent attention and immediate repair to minimize downtime. Please prioritize this repair request to ensure swift resolution.
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dear sir we from new delhi need the part no LGB 21 (made in germany) company make siemens please let me know where we get this parts thanksrajeev9868812902
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Experiencing issues with my Siemens 685139 E1721-A88 circuit board. Need repair for industrial unit ASAP. Any experts available for troubleshooting and fixing the problem?
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We need urgent attention regarding the Siemens 685139 E1721-A88 circuit board. The unit is still down. Please reply
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Siemens SICOMP-IMC 01S 200003848/09 with Kaeser Kompressoren Sigma Control is not responding to commands. Need immediate repair assistance. Thank you.
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Looking for repair services for a Siemens 685139 E1721-A88 industrial unit. Circuit board seems to be malfunctioning, require assistance with diagnosis and repair. Thank you.
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The Siemens 12762120014, Description 611 6SN1124-1AA00-0CA1 50A Servo Drive unit is not functioning properly. Please investigate and troubleshoot as needed.
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Seeking repair for Siemens 6ES5 246-4UA31 S5 PLC IP246 Inc.Positioning Module, currently not functioning. Please respond if you can assist with repairs. Thank you.
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The Siemens Sitop 6EP1437-2BA00 control panel has failed; currently unsure about the description. I'll inspect and troubleshoot further once I reach the machine.
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The Siemens 65E3226 8DJ40 unit is malfunctioning. Please take a look at it as soon as possible. Thank you.
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Equipment down. Siemens 3RK1400-0CD00-0AA0 showing error code "X" on interface PCB. Urgent attention needed.
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We experienced downtime due to a malfunction with Siemens 685139 E1721-A88 circuit board. It occurred at 645 am today. Please advise on troubleshooting steps. Thank you.
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Could you please confirm if the Siemens 6SE9521-0DC40 5HP Inverter is still supported or if replacement parts are available for this older unit?
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Dear Mr or Mrs Please quote the following: 1 SOURCE OF FEEDINGSITOP120/230 VAC EXIT 24 VDC 20 AMP BRAND SIEMENS MODEL 6EP1 336-3BA001 SOURCE OF FEEDINGSITOP120/230 VAC EXIT 24 VDC 10 AMP BRAND SIEMENS MODEL 6EP1 334-ISL111 SIMATIC S7-300, ET 200 SISTEMA PERIFERIA DECENTRALIZADA BRAND SIEMENS MODEL 6…Purchase or Repair: 
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Siemens 6SE70337EG841JF0 inverter interface just failed. Needs immediate attention!
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Siemens 6ES7 131-4BB00-0AA0 module for ET 2 not powering on and showing no indication lights. Need someone to fix it ASAP to prevent production downtime.
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Hi, we have a Siemens 65E3226 8DJ40 drive that needs a replacement, but we can't find one. Could you please provide repair info or suggest where we can find one? Thank you!
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Do you have a Siemens 685139 E1721-A88 circuit board available for sale or repair? Our unit is down and we need it to maintain production.
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Hello! I'm very interested in purchasing the Siemens 685139 E1721-A88 circuit board. My team recommended I reach out to inquire about the pricing and availability. I'm hoping to source one quickly. Can you provide me with more information on this? Thank you!
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Can the Siemens 6ES7321-1BL00-0AA0 be repaired or replaced? I'm trying to address this task on my to-do list. Thank you.
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I need information on Siemens TPS-C1/160 CPU BD. Description Unknown. Please provide details and possible solutions for my client's issue. Thank you.
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Siemens 6DD1681-0GK0 Converter Module Simadyn SU13 is malfunctioning, displaying error code XYZ. Equipment is currently down, urgent assistance needed. Please advise on next steps for repair.
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Siemens 685139 E1721-A88 is showing error code "E1721-A88 Circuit Board Failure". Equipment is completely offline. Please advise on next steps for repair.
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I have a Siemens C98040-A1005-L2 6RA Analogue DC Board that needs repair. Looking for someone who can troubleshoot and fix the issue as soon as possible.
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My client is facing an issue with Siemens part number 65E3226 8DJ40, describing it as a drive problem. Can you please provide more information on the possible repair options and estimated costs? Thank you.
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the Siemens 6DS1308-8AB (Teleperm M AS230 Interface Module) unit went down mid-shift. Need someone to follow up and look into it during the day. Thanks!
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Of course! Could you provide some additional details to help me understand what's happening with the unit? For example, is it making strange noises, emitting unusual smells, not powering on, displaying error messages, or behaving erratically in any way? The more information you can provide, the bett…Purchase or Repair: 
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Hello, I am inquiring about Siemens 6ES7 441-2AA01-7AG0 module. My client is experiencing issues with it and needs assistance. Can you please provide information on repair services available for this module? Thank you.
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Siemens 77-949-2300 840C Operator Interface Power Supply malfunctioned. Need to swap out ASAP to get machine back online.
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Experiencing issues with Siemens 685139 circuit board, E1721-A88 model. Need technical support or repair service to get back industrial unit running. Thank you.
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Urgent Equipment Issue - SIEMENS SINUMERIK PCU 50.3-CHello,Our SIEMENS SINUMERIK PCU 50.3-C is down and displaying an unknown error. The system is not responding, and we are unable to access any functions. Urgent assistance is needed to diagnose and resolve this issue.Thank you.—> …Purchase or Repair: 
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Hello, I hope this message finds you well. We are currently in need of assistance with a Siemens S7 Module bearing the part number 6ES7 650-0EB00-0AX0. As this unit is older and its manufacturer is unknown to us, we are unsure about its current support status or the availability of replacement parts…Purchase or Repair: 
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the Siemens 685139 E1721-A88 circuit board unit went down mid-shift. Need someone to check it out ASAP.
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