Ropex Service & Repair Forum

The Ropex 0 740302 temperature controller is displaying Error Code E21, indicating a malfunction with the temperature sensor. Equipment is not regulating temperature properly, causing inconsistencies in production. Please advise on troubleshooting steps or schedule a technician visit for repair.

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— Posted by LaCruze on 2012-02-24

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If you need your Ropex unit tested or repaired,
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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 106 Comments

#Ropex by Danielglota on 2014-12-22 01:44
Hello, Can the Ropex RES-440-L/400VAC 744013 Control Unit be repaired or replaced? I'm trying to check this off my to-do list. Thank you.

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#Ropex by Hesham on 2012-10-21 06:18
Hey, the Ropex 0 740302 temperature controller just crapped out on us. Gotta fix this ASAP to keep things running smoothly.

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#Ropex by CALLAN on 2012-06-15 04:28
The Ropex RES-403/230VAC 740302 controller malfunctioned at 1145 PM, causing unexpected downtime. Urgent response needed before the next shift.

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#Ropex by Essam Mohamed Atef on 2012-09-19 18:15
Ropex RES-403/230VAC 740302 controller is not responding to any input commands.

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#Ropex by Peter John VRIEZEMA on 2012-01-04 02:41
The Ropex 0 740302 is a temperature controller that isn't functioning correctly. The maintenance team needs assistance with this unit.

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#Ropex by Jamesseirl on 2014-02-16 00:58
Hello, I am interested in purchasing the Ropex RES-440-L/400VAC 744013 Control Unit. Can you please provide me with information on pricing and availability? I am looking to source this unit quickly. Thank you.

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#Ropex by Duryab Tahir on 2012-08-04 11:24
Hello, I am inquiring about Ropex 0 740302, which is a Temperature Controller. My client is experiencing some issues with it and needs assistance. Can you provide me with more information on possible repairs or replacements? Thank you.

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#Ropex by Phillip E Mead on 2025-09-19 20:11
Request Service for RopexModel/Part : 744013 Res 440 L 400Vac Control Unit

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#Ropex by Ben Cooper on 2012-04-21 03:09
I'm experiencing some issues with the Ropex 0 740302 machine. It's a Temperature Controller, but I'm unsure about its functionality. Something seems to have stopped working, and I would appreciate some assistance to troubleshoot and resolve the problem.

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#Ropex by Mitul Ravat on 2014-02-14 19:58
the Ropex RES-440-L/400VAC 744013 Control Unit went down mid-shift. Needs attention ASAP. Thanks!

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#Ropex by Ronald Boylan on 2014-08-19 16:26
One of the drive units just failed in the Ropex RES-440-L/400VAC 744013 control unit. I'll need to troubleshoot and replace it ASAP.

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#Ropex by Kaichen on 2012-06-11 09:05
The Ropex RES-403/230VAC 740302 unit is not functioning. Please investigate the issue. Thank you.

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#Ropex by William Bacon on 2014-10-27 06:18
Ropex RES-440-L/400VAC 744013 Control Unit not powering on.

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#Ropex by McLaren on 2014-02-19 16:19
The Ropex RES-440-L/400VAC 744013 Control Unit is still down. Need a response

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#Ropex by LaCruze on 2012-02-24 00:21
The Ropex 0 740302 temperature controller is displaying Error Code E21, indicating a malfunction with the temperature sensor. Equipment is not regulating temperature properly, causing inconsistencies in production. Please advise on troubleshooting steps or schedule a technician visit for repair. —> …Purchase or Repair: Ticket Image...
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#Ropex by Steve Grom on 2014-12-26 03:27
Just had a failure on the Ropex RES-440-L/400VAC 744013 Control Unit, likely a drive or board issue. Will troubleshoot and update as needed.

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#Ropex by Jeffrey on 2012-03-25 01:08
The Ropex RES-403/230VAC 740302 controller unit is malfunctioning, causing a significant disruption to our production line. Immediate action is required to rectify this issue

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#Ropex by Juan C Perez on 2014-05-04 00:20
One of the Ropex RES-440-L/400VAC 744013 units in the warehouse is exhibiting unusual behavior. It is not functioning as expected, but I am not able to provide a specific term for the malfunction.

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#Ropex by grimes on 2014-02-12 20:58
The Ropex RES-440-L/400VAC 744013 Control Unit is exhibiting abnormal behavior in the warehouse. The unit is not functioning as it normally does.

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#Ropex by Valadka on 2014-09-24 00:23
The Ropex RES-440-L/400VAC 744013 is a Control Unit that is currently not functioning properly.

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#Ropex by Korzhenevskii SerG on 2014-11-28 06:16
Just had a failure on the Ropex RES-440-L control unit at 744013, likely a drive or board issue. Will investigate further and report back.

—> Purchase or Repair:
#Ropex by WALSON on 2012-05-22 09:25
Ropex 0 740302 temperature controller malfunctioning, affecting production line operation. Uptime critical, require immediate repair service for swift resolution.

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#Ropex by kirankumar on 2012-03-29 23:18
Hello, we have a client who is experiencing issues with the Ropex RES-403/230VAC 740302 controller. Can you please provide information on troubleshooting and repair options for this product? Thank you.

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#Ropex by Fencer on 2012-06-15 08:28
Need someone to fix my Ropex RES-403/230VAC 740302, it's a controller. What's causing the unit to malfunction? Would appreciate a quick response to get it up and running again.

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#Ropex by Choptuik on 2014-12-27 22:06
Can you please confirm if the Ropex RES-440-L/400VAC 744013 Control Unit is still supported or if replacement parts are available for it? Thank you.

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#Ropex by Bondan Susilo Rahardjo on 2012-02-08 08:55
The Ropex 0 740302 Temperature Controller unit isn't working as reported.

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#Ropex by Dustin Chase on 2012-09-03 15:46
One of the Ropex 0 740302 Temperature Controllers just died on us needs immediate attention. I'm heading over to the next machine now.

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#Ropex by johnna villaceran on 2012-08-17 02:19
Hello, I am inquiring about a Ropex 0 740302, described as a Temperature Controller. Could you please provide me with more information and options for repair? Thank you.

—> Purchase or Repair:
#Ropex by GRAPHIQUE on 2012-04-14 19:33
My Ropex RES-403/230VAC 740302 industrial unit stopped working suddenly. Need a specialist to repair the controller ASAP.

—> Purchase or Repair:
#Ropex by Rafael Wischkin on 2014-02-12 05:58
Could you please advise if the Ropex RES-440-L/400VAC 744013 Control Unit is still supported or if replacement parts are available for it? We have an older unit but are unsure of the manufacturer.

—> Purchase or Repair:
#Ropex by EZALDEIN on 2014-11-21 14:12
Hello, I'm interested in the Ropex RES-440-L/400VAC 744013 Control Unit for purchase. Can you please provide me with information on pricing and availability? I'm looking to source this quickly. Thank you.

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#Ropex by alex zhusma on 2014-12-17 02:44
I'm having trouble with the Ropex RES-440-L/400VAC 744013 control unit. It seems like something has stopped working. I'm not really sure what the issue is, but I wanted to reach out for help.

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#Ropex by Brick Roberts on 2019-11-14 00:00
I'm having trouble with the Ropex res-407-0-3 machine. It seems like something has stopped working, but I'm not sure what exactly. I would appreciate any assistance you can provide. Thank you.

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#Ropex by tim stokolosa on 2014-05-02 22:20
Hello, I am interested in purchasing a Ropex RES-440-L/400VAC 744013 Control Unit. Could you please provide me with information regarding pricing and availability? I am looking to source one quickly. Thank you.

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#Ropex by AGUSTI on 2012-10-28 22:03
the Ropex RES-403/230VAC 740302 controller unit went down mid-shift. Needs attention ASAP. Thanks.

—> Purchase or Repair:
#Ropex by Don Havener on 2012-01-28 15:12
I'm having trouble with the Ropex 0 740302, which I believe is a Temperature Controller. It seems that something has stopped working, and I'm unsure how to fix it. Any assistance or guidance would be greatly appreciated.

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#Ropex by Owen Torgerson on 2012-06-03 15:04
The Ropex RES-403/230VAC 740302 controller is showing error code E005, indicating a communication fault with the sensor. Equipment unable to regulate temperature. Urgent repair needed to resume operations.

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#Ropex by bliss on 2012-01-17 12:45
The Ropex RES-403/230VAC 740302 controller is displaying error code E-25 and showing a constant alarm for "overvoltage." The equipment is not responding or functioning properly. Please advise on troubleshooting steps or repair recommendations. Thank you.

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#Ropex by Dave Borgfield on 2014-01-07 05:22
The Ropex RES-440-L/400VAC 744013 unit is not functioning properly. Please take a look as soon as possible. Thank you.

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#Ropex by sampaio on 2014-10-06 03:39
Experiencing issues with Ropex RES-440-L/400VAC 744013 Control Unit. Need assistance with repair or diagnostics ASAP. Please reply if you can help. Thank you.

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#Ropex by Valdis Kundzins on 2014-12-27 09:06
There was a downtime incident with the Ropex RES-440-L/400VAC 744013 Control Unit. Please provide a quick summary of what happened and when the incident occurred. Thank you.

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#Ropex by Richard VanSchuyver on 2012-06-12 17:13
The Ropex 0 740302 Temperature Controller is displaying Error Code E-301, preventing the equipment from turning on. Please advise on troubleshooting steps or arrange for a technician to inspect it. Thank you.

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#Ropex by Dantonio on 2012-02-09 22:35
Can you please confirm if the Ropex RES-403/230VAC 740302 controller is still supported? We are looking for replacement or repair options for this unit, but we are unsure about its manufacturer. Your assistance would be greatly appreciated. Thank you.

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#Ropex by bunyamin on 2014-12-16 21:44
The Ropex RES-440-L/400VAC 744013 Control Unit is still down. We need a response as soon as possible. Thank you.

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#Ropex by john naud on 2014-12-26 08:06
I am experiencing an issue with the Ropex RES-440-L/400VAC 744013 Control Unit where something seems to have stopped working. I am uncertain about the exact nature of the problem, but could you please provide assistance with troubleshooting it? Thank you.

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#Ropex by MOHAMED DRICI on 2012-08-24 08:00
The Ropex 0 740302 Temperature Controller is not functioning properly.

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#Ropex by Melina Rojas Saloma on 2014-07-02 04:57
The Ropex RES-440-L/400VAC 744013 control unit went down mid-shift. Please follow up on this tomorrow.

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#Ropex by Rachel Fogarty on 2014-12-20 04:44
I observed that one of the Ropex RES-440-L/400VAC 744013 control units in the warehouse is displaying unusual behavior. It is not functioning as it normally does and is acting erratically.

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#Ropex by kevin whiteway on 2014-02-18 05:12
The Ropex RES-440-L/400VAC 744013 control unit went down mid-shift. Please check and repair first thing in the morning.

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#Ropex by Robert keith on 2012-02-14 21:09
The Ropex 0 740302 Temperature Controller is malfunctioning, affecting the productivity of the production line. Please provide urgent repair services to fix the issue

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