Samsung oven C-30 error code
C-30 means communications / control fault. The display and main board have lost communication — often after a power glitch..
Often fixable at home · Fault type: Electrical/hardware
Safe checks, in order of likelihood
- Power off at the mains for 10 minutes, then restart.
- Check the plug and fuse — repeated C-30 can follow brown-outs.
- If it returns after a clean power cycle, the display module or board is suspect.
Call a professional when…
Reset; then display module or main board testing and replacement. If the code returns after these checks, book a qualified engineer.
Parts usually involved
- Samsung oven control board or display module.