Hello to everyone, I am new to the forum. Sorry if this isn't a question for this forum.
I have a problem with my air conditioner model Vaillant VA 6-050 inverter. It shows an error "code" by blinking a green led, but as it's not a well known air conditioner brand, I cannot find what the blinking means, and there isn't an official dealer in my country. I suspect its the PCB of the inside unit, because I repaired it once before, but now I can't identify the problem.
Any ideas on how to identify the problem, or can I use some sort of universal PCB board??

 

Check out pages 34 to 39 of this installation manual for the blink codes: https://www.gotogasdocs.co.uk/f/m/Vaillant/Other Equipment & Information/Install - V-multi system 103.pdf

Hope this helps.

 

Check out pages 34 to 39 of this installation manual for the blink codes: https://www.gotogasdocs.co.uk/f/m/Vaillant/Other Equipment & Information/Install - V-multi system 103.pdf

Hope this helps.

Thank you for taking the time, but this is for some newer models, which have an LCD. Mine is an older one, and I can't seem to find the error codes and the guys where we bought the A/C claim to not know the error codes. I think they are trying to sell me a new one. But then again, it has been 10 years, and you can't blame them. I just don't have a 1000 euros to shell out now.
I found a universal controller on ebay its from a chinese brand named Quanda, and it seems legit to me. It's quite expensive for a chinese brand, around 120 euros, but it's for an inverter A/C, which is what I need. The other non inverter universal controllers are 25 EUR, but I'm not so lucky with my inverter.

 

here's the manual

Your model number is on the first page.