Why does the display disappear on my vacuubrand CVC 3000 Controller?
- MMakayla JohnsonAug 29, 2025
If the display disappears on your vacuubrand Controller, it could be due to too much load connected, such as valves. Check the current draw of the connected devices like pumps and valves. It might also be due to a short circuit at connected valves, so check the valves. Another cause may be a short circuit at the RS232 plug, so check the plug and cable.