Samil Power Wind River Relay Fault

Samil Power Wind River Solar Inverter

If you have a Samil Power Wind River Inverter (shown in the above picture), and it has stopped working and displays the error “Relay Fault” then we may be able to help.


Relay Fault 

If your Wind River inverter is displaying the message “Relay Fault”, then it has suffered a hardware failure.


Samil Power are no longer making or supporting this inverter but you may be able to contact your installer and check if the warrantee is still valid. If not or your installer has gone out of business, then you have two options repair or replacement. The repair is the simplest and cheapest option as there is no need to modify your installation following the repair. If a repair is not possible and you would like to consider a new inverter, either European or Chinese with a proper warrantee then click the “Cuberoot Energy” link and go to our main site and contact us.



Installation Warranties are a different insurance, taken out by installers against faulty design or installation. Typically they will not cover the inverter. You can also try this route.


Contact us first to discuss the fault and we will advise then follow the instructions below.

  1. If you feel happy to switch off both AC and DC switches, remove the inverter and ship it to us, we will look at it and if possible Repair and test it and return it for a cost of £150 + postage back to you. You then need to reinstall and all is good again.
  2. Get us out to remove it and bring it back here to fix and return to you if we have been able to sort it out. This will cost £60 to come out (+ mileage)+ £150 to fix and £60+Mileage to reinstall your original unit.
  3. Call us in to replace the broken unit with a new inverter, we have a number to choose from. We will check the design against your system and we can then get the new inverter, install and test it. The cost for this will vary depending on system size and extended warranty purchase.


For all Information and quotes, please use the contact details below:

Cuberoot Ltd.
82 Broad Street
+44 (0)116 260 3545

Email: Cuberoot Energy