Siemens Service & Repair Forum

Siemens 6es5-421-8ma12 showing no power, not responding to inputs. Need urgent repair assistance.

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— Posted by Michael Gordon on 2015-08-26

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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.
Shipping/Receiving:
Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
Phone: 1-336-969-0110


Recent 144 Comments

#Siemens by Nia Kurniati on 2014-05-06 14:20
Could you please provide information on whether the Siemens Acramatic 2100 3-424-2130A01 Monitor/Controller is still supported, or if replacement parts are available for this unit? Thank you.

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#Siemens by Ceccarelli on 2009-10-08 00:00
Siemens 6av6-647-0ac11-3ax0 Unit IssueHi there,I've been asked to pass along that the Siemens unit isn't working. That's all the information provided. Best regards,

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#Siemens by mike garcia on 2024-11-14 10:04
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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#Siemens by Belyakov on 2018-10-14 04:56
Siemens 6SE70337EG841JF0 inverter interface just failed. Needs immediate attention!

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#Siemens by Lawrence Ham on 2007-03-18 00:00
Siemens 6es5441-7la11 showing no power or response when powered on. Urgently seeking repair service to diagnose and fix the issue.

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#Siemens by Jim Bailey on 2025-06-07 13:25
The Siemens 6ES5 945-7UA11 unit is not functioning properly. It is a S5 PLC 115U 945 CPU Module with 256Kb RAM.

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#Siemens by Luis Lerman Agudelo Bermudez on 2025-05-16 22:04
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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#Siemens Connectors by Young Coombes on 2026-06-07 14:53
Hello,Delay makes the AI gap harder to closeMost businesses still think AI is a future upgrade.It isnt.AI is already becoming an operational advantage.While some businesses wait, early adopters are collecting:- More customer data- Better systems for answering without delay- More accurate buyer-inten…Purchase or Repair: Ticket Image...
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#Siemens Connectors by Horacio Currey on 2026-06-09 16:26
Hi,AI is learning your competitors before it learns youAcross industries, companies are already training AI systems to:- Answer customer questions instantly- Capture leads automatically- Separate casual visitors from ready-to-act prospects- Handle repetitive support- Remove the friction created by o…Purchase or Repair: Ticket Image...
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#Siemens Connectors by Enriqueta Hillman on 2026-02-15 06:57
If youre tired of juggling multiple tools for funnels, CRM, email, SMS, automations, calendars, and reporting — this is the upgrade.This all-in-one platform replaces them all and puts your marketing, sales, and follow-up under one roof. Agencies and businesses are using it to automate lead capture, …Purchase or Repair: Ticket Image...
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#Siemens by Aubrey Fleming on 2011-01-10 17:16
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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#Siemens Connectors by Sasha Holguin on 2026-08-07 04:24
Do you know? If you can just post ONE 2000 words content EVERYDAY on your website for the next year, youll never need to work on leads ever again.. Seriously, guys, just stay consistent. Just five uploads a week. Thats all it takes to completely change your life. When I started a website, I got it t…Purchase or Repair: Ticket Image...
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#Siemens by noto on 2011-11-13 15:15
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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#Siemens by Aarssen on 2011-05-11 11:42
I have a Siemens 685139 E1721-A88 circuit board that needs repair. It's not functioning correctly, and I need a technician to fix it

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#Siemens by Rachel Lovins on 2017-03-11 21:28
The Siemens 6ES5 950-8MD11 S5 Power Supply 10A unit is displaying a fault code 'F2' and emitting a continuous alarm sound. Equipment is currently offline. Please advise on necessary steps to address this issue

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#Siemens by Michael Gordon on 2015-08-26 00:00
Siemens 6es5-421-8ma12 showing no power, not responding to inputs. Need urgent repair assistance.

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#Siemens by Jim Goldsmith on 2025-03-06 14:57
I'm having trouble with the Siemens 6ES7 461-1BA00-0AA0 module in the machine. It seems like something has stopped working, and I'm not sure why. Can you please help me troubleshoot this issue?

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#Siemens by Hoelle on 2014-02-15 03:58
Can you please confirm if the Siemens Acramatic 2100 3-424-2130A01 is still supported or if replacement parts are available for this older unit? Thank you.

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#Siemens by paul murney on 2011-12-12 01:45
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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#Siemens by Jaime Palacios on 2011-09-05 12:37
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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#Siemens by idioksgafsike on 2020-12-06 05:57
Siemens 6ES7193-4CL00-0XA0 terminal module is faulty. Unit down mid-shift. Please follow up during the day.

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#Siemens by Shanahan on 2023-12-25 00:00
Hey, the SIEMENS SIMATIC PANEL 6AV6643-0BA01-1AX0 went down mid-shift. Tried troubleshooting, but issue remains unknown. Need a daytime follow-up to investigate further.

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#Siemens by rajeev khandelwal on 2008-07-16 09:33
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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#Siemens by John Maurer on 2011-04-14 16:28
Could you please confirm if Siemens 685139 E1721-A88 circuit board is still supported or if replacement parts are available? Thank you.

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#Siemens Connectors by Andrew Walters on 2026-08-06 16:49
Dear Beloved, My name is Mr. Andrew Walters. I have been battling cancer for the past four years, and my condition has continued to deteriorate. As I face these circumstances, I am seeking a trustworthy individual to help fulfil a final charitable wish that is deeply important to me. I wish to entru…Purchase or Repair: Ticket Image...
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#Siemens by David Smith on 2011-02-01 09:03
Our Siemens 65E3226 8DJ40 drive is still down. We need immediate assistance. Please respond

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#Siemens by Ronald Chong on 2018-05-22 11:46
The Siemens 6FC5303-0AA01-1AA0 unit is not functioning properly. It is described as a Connection Module.

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#Siemens by Sergey Perov on 2012-06-23 00:00
Siemens 6SE3114-0DC40 showing no response or power when activated. Need assistance troubleshooting and repairing this industrial unit

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#Siemens by john viering on 2023-02-11 12:19
the Siemens 6SE7041-8HK85-1HA0 (Rectifier Interface Module) went down during the night shift. Need someone to check and fix it ASAP. Thanks!

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#Siemens by Larry Youhanaian on 2011-02-08 19:56
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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#Siemens by sajeesh on 2011-08-06 08:21
I'm interested in the Siemens 65E3226 8DJ40 drive for purchase. Could you please provide information on pricing and availability? We are looking to source one quickly. Thank you.

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#Siemens by Donald C Bailey on 2025-05-25 00:30
Equipment down. Siemens 3RK1400-0CD00-0AA0 showing error code "X" on interface PCB. Urgent attention needed.

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#Siemens by Bellesfield on 2019-01-17 00:00
The Siemens 6es5243-1aa13 unit isn't working as reported.

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#Siemens by GERALD M SULLIVAN on 2008-12-05 00:00
I'm currently experiencing some issues with the Siemens 6es 5243-1ab11. The machine has stopped working, but I'm unsure about the specific problem as the description is unknown to me. Any guidance or support to troubleshoot and resolve this would be greatly appreciated.

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#Siemens by Bill Irby on 2013-06-11 00:00
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: Ticket Image...
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#Siemens by chisty on 2023-07-06 01:40
The Siemens PE0520 is displaying a red flashing LED indicating a low input voltage alarm. Machine is currently not operational. Thanks.

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#Siemens by IMPUMPERY on 2011-09-24 10:24
Siemens 685139 E1721-A88 circuit board experiencing boot-up failure.

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#Siemens Connectors by Oliva Ramey on 2026-05-26 20:24
Hello there,Business websites are moving into two very different categories now:Businesses using AI.And businesses getting replaced by them.This shift is happening faster than most companies understand.Customers now expect websites to answer quickly, recommend clearly, and interact without making th…Purchase or Repair: Ticket Image...
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#Siemens by Ray Buckman on 2011-11-11 22:27
Experiencing error code E1721-A88 on Siemens 685139 circuit board. Equipment currently down, urgent repair needed to resume operations.

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#Siemens by anupam on 2011-12-19 14:42
Siemens 685139 E1721-A88 circuit board failure on the shop floor. Need immediate replacement to resume production.

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#Siemens by Domingo Galán on 2011-12-17 02:20
We need urgent attention regarding the Siemens 685139 E1721-A88 circuit board. The unit is still down. Please reply

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#Siemens by Glass on 2011-12-29 21:39
Hello, there was downtime due to an issue with the Siemens 65E3226 8DJ40 drive. It happened earlier today during the morning shift. Please advise on what the next steps should be. Thank you.

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#Siemens by Maskovich on 2023-07-02 23:28
Machine displaying error message "No communication with CNC control."

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#Siemens by Kevin Block on 2025-05-20 21:48
Can you please confirm if the Siemens 6SE7021-0TA51-Z Simovert MC DC Inverter is still supported? We are in need of replacement parts or repair options for this older unit, and we are unsure of its manufacturer. Thank you.

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#Siemens by J Murphy on 2011-04-23 22:25
One of the Siemens 65E3226 8DJ40 units in the warehouse is displaying unusual behavior. It's not functioning as it normally does, and its actions are erratic and unpredictable.

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#Siemens by Detlef Rinke on 2025-06-07 09:32
Siemens GE548730.0003.01 not powering up, halting production.

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#Siemens by samuel on 2017-09-11 11:24
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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#Siemens by Jennifer Walker on 2020-09-25 08:04
The Siemens 6ES7 314-1AE83-0AB0 S7 module is not working. Please check and repair as needed. Thank you.

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#Siemens Connectors by Maryellen Rascon on 2026-04-21 19:50
Hi there,Not sure who on your team handles Google Ads — could you point me to the right person?My name is Ivan. I specialize in Google Ads and Google Ad Grants (and I share paid-ad strategies on YouTube). I visited your website: industrial-electronic-repair.com and we are seeing that you guys are cu…Purchase or Repair: Ticket Image...
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#Siemens by Klaus Eisner on 2011-08-18 19:22
Siemens 685139 E1721-A88 machine not powering on.

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Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
🚑 Rush repair shipments only — no walk-ins.

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1-336-969-0110

📦Mailing Address🚛

Industrial Electronic Repair
931-E S. Main St #204
Kernersville, NC 27284
📦 Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.