!!
critical Ikea
Error Code Continuous beeping
General malfunction or problem preventing cycle start/operation.
? What Causes This
Unknown internal fault detected.
✓ How to Fix It
Contact authorized service center for inspection and repair.
Source: page 45 of the official manual
From the manual
This error code appears in:
Ikea 804 756 07 Rengora Integrated Dishwasher