Siemens Service & Repair Forum

Experiencing error code E1721-A88 on Siemens 685139 circuit board. Equipment currently down, urgent repair needed to resume operations.

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— Posted by Ray Buckman on 2011-11-11

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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 131 Comments

#Siemens by Bruce Welborn on 2023-03-05 01:26
The Siemens S7 module (6ES7 655-1AX13-0AX0) is not working as reported.

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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 Belyakov on 2018-10-14 04:56
Siemens 6SE70337EG841JF0 inverter interface just failed. Needs immediate attention!

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#Siemens by Chris Werner on 2011-06-10 17:24
Siemens 65E3226 8DJ40 drive not responding to control inputs.

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#Siemens by NGUYEN HUY DINH on 2022-12-24 06:35
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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Seeking repair for Siemens Energy & Automation, Inc. 3-533-0907G video card. The unit is malfunctioning, and we require technical assistance to resolve the issue

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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 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 Connectors by Bill Blackwelder on 2025-12-17 05:13
Do you accept guest posts? What topics do you accept? How much is a post?

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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 Winery on 2025-05-23 09:23
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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#Siemens by Gino Venturelli on 2025-05-17 18:38
The Siemens 6DS1202-8AB Communication Interface Module on unit X went down mid-shift. Please investigate and troubleshoot it during the day shift. Thank you.

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#Siemens by Basheer on 2024-11-12 14:38
The Siemens 6SN1145-1BB00-0FA1 Simodrive E/R Module Int. 120/156KW unit is not working properly.

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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 by rodrigo alliende on 2011-10-17 01:45
Siemens 685139 E1721-A88 is currently down, showing error code E32. Circuit board seems to be malfunctioning. Please advise on possible causes and solutions as soon as possible. Thank you.

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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 Sukmawan on 2017-02-15 00:00
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: Ticket Image...
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#Siemens by SHARIF. on 2018-03-26 05:31
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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#Siemens by Maskovich on 2023-07-02 23:28
Machine displaying error message "No communication with CNC control."

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

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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 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 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 ramson on 2011-03-30 21:08
Hello, I am reaching out on behalf of my client who is experiencing an issue with their Siemens 685139 E1721-A88 circuit board. Could you please provide more information about potential repair options and pricing for this particular part? Thank you.

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#Siemens by Jeff Flatten on 2011-08-10 09:05
Hello, I am reaching out on behalf of my client regarding Siemens 65E3226 8DJ40 drive. We need some information and assistance with this particular item. Please let us know how we can proceed.Thank you.

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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 james yates on 2011-11-02 10:12
Siemens 685139 E1721-A88 circuit board not responding, production halted.

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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 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 Connectors by Alexander Cruz on 2025-12-10 03:26
Hello, I have a few questions about your company and services. Can you reach me at 8645268528? Please text first!

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

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#Siemens by Magaly Polo A. on 2006-11-14 01:20
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: Ticket Image...
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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 Lee Winquist on 2005-07-04 00:13
The Siemens 6ES7 654-5SA02-0XX0 module is not functioning. Please advise.

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#Siemens by ALEJANDRO PRIETO on 2014-01-27 18:30
Our Siemens Acramatic 2100 3-424-2130A01 monitor/controller experienced a malfunction, causing downtime on the production line earlier today. This happened at 330 PM during the afternoon shift. Can you provide a quick response before the next shift starts?

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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 Connectors by Sybil Banner on 2026-04-28 10:54
Send us your business photos or phone videos and we will edit them into a high-end TV commercial for free. We then broadcast that ad to your target lead list on the most watched channels in the country. http://topshelfpromotion.com

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#Siemens by Motairi-Al, on 2011-06-17 13:57
the Siemens 685139 E1721-A88 circuit board unit went down mid-shift. Need someone to check it out ASAP.

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#Siemens by Willians Quintino on 2025-05-16 18:13
Hi, could you please provide repair information for Siemens module 6ES7 741-0BC11-0CA1? Thank you!

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#Siemens by Manmeet Chawla on 2024-04-02 00:06
Hello, I hope this message finds you well. We are inquiring about the Siemens 6ES5 241-1AB21 IP241 Incremental Positioning Module. Could you please provide information on whether this unit is still supported or if replacement parts are available? Thank you.

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#Siemens by igribesplatno on 2011-04-20 17:58
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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#Siemens Connectors by Ashli Fusco on 2026-04-28 07:58
Dominate every screen your prospects look at. We follow your target list from their living room TV to the smartphone in their pocket. We even edit your professional commercial for free. Check your area availability here: http://topshelfpromotion.com

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#Siemens by justin igarashi on 2007-09-10 00:00
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: Ticket Image...
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#Siemens by Pawel Poborca on 2011-11-07 23:54
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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#Siemens by Wayne Cleveland on 2014-12-23 12:06
The Siemens Acramatic 2100 3-424-2130A01 monitor/controller in the warehouse is exhibiting abnormal behavior. The unit is not functioning as usual and is acting erratically.

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#Siemens by William LeFurgey on 2011-06-27 22:09
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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#Siemens by Marcos Y. Kono on 2011-09-19 15:52
The Siemens 65E3226 8DJ40 drive in the warehouse is not functioning as usual. It is displaying unusual behavior that is not typical of its normal operations.

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Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
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Industrial Electronic Repair
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