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


Recent 106 Comments

#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 MUHAMMAD JAMIL AKHTER on 2012-09-19 21:15
I need urgent assistance with Ropex 0 740302, the Temperature Controller. The unit is still down. Please respond

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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 eugenio cortis on 2012-08-02 20:55
Can the Ropex RES-403/230VAC 740302 controller be repaired or should it be replaced? I'm trying to check this off my to-do list.

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#Ropex by Chaney on 2014-12-04 02:23
The Ropex RES-440-L/400VAC 744013 Control Unit is not working.

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#Ropex by Kft. on 2012-07-27 15:19
Ropex 0740302 displaying error code E4, generating high temp alarm. Equipment down, urgent assistance needed.

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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 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 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 Muller on 2014-11-29 08:16
Hello, I am inquiring about repair services for Ropex RES-440-L/400VAC 744013. The item is a Control Unit and my client is seeking assistance with it. Please provide information on how to proceed. 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 regis on 2014-05-05 11:20
One of the Ropex RES-440-L/400VAC 744013 units in the warehouse is displaying unusual behavior. It is not operating as it normally does.

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#Ropex by kimon vidalis on 2014-12-21 01:44
Do you have a Ropex RES-440-L/400VAC 744013 Control Unit available for sale or repair? Need it urgently to keep production running. Thank you.

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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 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.

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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 Rainbow on 2012-08-06 09:24
Could you please confirm whether the Ropex 0 740302 Temperature Controller is still supported or if replacement parts are available for this older unit? Thank you.

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#Ropex by Kyle and Kay Conant on 2014-02-20 03:00
Ropex RES-440-L/400VAC 744013 Control Unit is displaying error code E4 and not responding to any inputs.

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#Ropex by Kristie Thompson on 2014-12-24 04:06
Looking for repair for Ropex RES-440-L/400VAC 744013 Control Unit unit not powering up or responding to controls. Please contact if you can troubleshoot and repair

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#Ropex by wassim chaar on 2012-03-24 23:08
Just found out that the Ropex RES-403/230VAC 740302 controller has failed. Need to get a replacement ASAP to keep things running smoothly. Will update once it's fixed.

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#Ropex by mohsen ahmadi on 2014-12-25 13:44
Ropex RES-440-L/400VAC 744013 Control Unit is not responding.

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#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.

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#Ropex by MitchelJege on 2014-03-13 16:02
I'm having trouble with the Ropex RES-440-L/400VAC 744013. The control unit seems to have stopped working properly. I'm not sure what the issue is, but your help would be greatly appreciated.

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#Ropex by Pascal Cesar on 2014-12-26 02:27
The unit RES-440-L/400VAC 744013 is currently not working. It is identified as a Control Unit.

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#Ropex by renante on 2014-12-19 13:44
Looking for a technician to repair my non-functioning Ropex RES-440-L/400VAC 744013 Control Unit. It's not powering up despite proper connections. Need urgent assistance.

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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.

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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 rick rodriguez on 2014-08-13 17:22
the Ropex RES-440-L/400VAC 744013 control unit went down during the shift. Needs attention ASAP. Thanks.

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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 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 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 Deline on 2012-08-02 08:55
The Ropex RES-403/230VAC 740302 controller is not working as reported.

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#Ropex by Rick Pero on 2012-05-26 18:04
The Ropex RES-403/230VAC 740302 controller is not powering on.

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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 muhammad Nouman on 2014-11-21 10:12
Could you please confirm if the Ropex RES-440-L/400VAC 744013 Control Unit is still supported, and if replacement parts are available for it? 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 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 Otto Schmidt on 2012-01-31 02:03
The Ropex RES-403/230VAC 740302 controller is displaying error code E07, causing the equipment to malfunction. Please advise on troubleshooting steps or repair options. Thank you.

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#Ropex by Sidebottom on 2012-02-22 01:22
Hello, we still have an unresolved issue with our Ropex RES-403/230VAC 740302 controller. It's important that we receive a response

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#Ropex by Wentworth on 2014-01-04 06:11
The Ropex RES-440-L/400VAC 744013 Control Unit isn't working.

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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 R. R. SARAF on 2012-01-17 04:16
Ropex RES-403/230VAC 740302 controller not responding to input commands, halting production.

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#Ropex by giron on 2012-10-28 16:03
I'm experiencing issues with the Ropex 0 740302, which I believe is a Temperature Controller. Something seems to have stopped working, and I'm unsure how to address it. Any assistance or guidance would be greatly appreciated.

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#Ropex by POLINTAN on 2012-11-21 10:47
I'm sorry to hear that your Ropex 0 740302 is not working properly. It seems like the temperature controller is having issues, but I'm not entirely sure since I am a front-office employee. I recommend contacting our technical team for further assistance with troubleshooting.

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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 Faheem on 2012-07-31 14:37
Looking for a technician to repair my Ropex RES-403/230VAC 740302 controller unit. It's not functioning correctly and needs immediate attention. Please let me know if you can assist with fixing this industrial unit.

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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 roland MIRANDA on 2012-09-13 09:08
My Ropex 0 740302, which I believe is a Temperature Controller, is experiencing some issues. Something seems to have stopped working, and I'm unsure how to troubleshoot it. Any guidance or support would be greatly appreciated.

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#Ropex by Kaschak on 2014-03-25 06:30
There was a downtime incident with the Ropex RES-440-L/400VAC 744013 Control Unit. It occurred during our shift on . Need a quick update before next shift comes in.

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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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