July 11, 20223 yr What is the cause of a F41 - Parallel System Stop - Error when loadshedding starts?
November 27, 20223 yr Hi Carwyn, Did you manage to find out how to fix this problem? I’m getting the same F41 fault often, and the whole system goes down.
November 28, 20223 yr On 2022/07/11 at 9:29 PM, Carwyn said: What is the cause of a F41 - Parallel System Stop - Error when loadshedding starts? Are you running a single inverter or a parallel setup? I am running 2x 5kW Sunsynks in parallel and have never had that error message
February 27, 20233 yr Also having this on a 5 inverter setup - F41. Crashes out all the inverters and my office goes completely dead for about 2 minutes. Tends to occur when there is lots of sun and loadshedding begins.
March 7, 20233 yr The most common cause would be firmware that is incorrect. All the inverters must be on the same firmware for parallel to work. Get on to the sunsynk WhatsApp support group, send pictures of all the logger devices and ask for an update. Do not touch the system when updating except when absolutely necessary.
April 18, 20233 yr Where can one get the detail for the Whatsapp group? Alternatively the relevant firmware update?
April 18, 20233 yr 6 hours ago, swagefast said: Where can one get the detail for the Whatsapp group? Alternatively the relevant firmware update? Not sure about the whatsapp group but you can request a firmware upgrade online. If you have the sunsynk dongle and are using sunsynk connect then go here If you are using the Solarman Dongle and are using Solarman app then send an email to Nancy <[email protected]>
August 31, 20232 yr Good day all. Has anyone found a solution to this topic? I have a parallel system consisting out of 2 X 12kW sunsynk's and I've got the same issue. Master inverter goes into F41 "Parallel_System_Stop" and the slave goes into F34 "AC_Overload_Fault". I updated both inverters today to 1140 from 1127 through the Segen Sunsynk Installer group. All dip switches at both inverters parallel ports are toggled into the "ON" position and the cable has been checked and is working. If anyone is able to find or provide a solution, that would be most appreciated.
August 31, 20232 yr Mine started with the same issue. 2x 12 kw I did not do any updates unless it did so automatically. Any views?
September 29, 20232 yr We also have the same problem with 2x12kW Sunsynks. Software is identical 2005-1140 on each. The installer mumbled something about over-voltage and not enough info to diagnose the fault and we've told him to stop bull$4itting us - No overvoltage fault and it happened at night with no PV input when load shedding hit. The system tried to reset itself three times then returned to normal when city power returned. We're dreading the next outage. The fault appears to be intermittent as we've gone through previous load shedding without problems.
January 31, 20242 yr Facing the same problem from 2x8kw Sunsynk inverters but 2x5kw inverters are running smoothly no problem
February 15, 20242 yr Hello, just adding to the group thread on the exact same issue. Has there been any updates or follow ups on how to correct this issue?
February 9Feb 9 hi sitting with the same problem also 2 x 5kw systems first it was code 20 now code 41
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.