No heat
Parts commonly needed when your Samsung ovens & range has this issue. Recommendations are based on repair patterns and may not diagnose your specific problem.
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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.