Won't start
Parts commonly needed when your Samsung ovens & range has this issue. Recommendations are based on repair patterns and may not diagnose your specific problem.
Verified Components
Parts
2Part numbers confirmed across multiple retailers for NV51M9970D
Parts shown are based on similar models in this series — verify compatibility before ordering
Repair tips for this issue
From the service manual for Samsung NV51K7770D Series Ovens & Ranges
From the service manual
Good to know
2 technician insights for the Samsung NV51K7770D Series Ovens & Ranges
common_failure
Main PCB solder joint failures: These ovens experience significant thermal cycling. When C-21 errors are intermittent, suspect cracked solder joints around sensor input circuit before replacing sensor.
diagnostic_shortcut
Connector pin inspection: When diagnosing communication errors (C-F0, C-F2), use magnifying glass to inspect connector pins. Corroded or bent pins cause intermittent issues that reseat sometimes fixes.
Seeing an error code on your display? Look up your error code → for more specific diagnostic information.