Samsung NX58 30-inch gas ranges (electrical and ignition side): quick sheet

Power: the range plugs into a single 120 V, 60 Hz grounded outlet on a 20 A circuit (Samsung spec sheets for NX58R5601 and NX58T7511). The control board, spark module, both oven igniters, light, lock motor and convection fan all run from it. If nothing sparks, check the outlet and breaker before anything else.

Cooktop: each valve stem has a switch that closes at LITE; any closed switch fires the single spark module, so all electrodes tick together and only the burner with gas lights. Moisture or burnt spatter bridging an electrode, or a sticky switch, makes the whole cooktop click.

Oven ignition: on Bake the control energizes the bake igniter circuit; the glow-bar heats and its current rises until the oven safety valve opens and the burner lights. A worn igniter can glow but not pass enough current, so the display sits around 150°F and never climbs (Samsung: if the display stays at 150°F the oven is not heating). The burner cycles off and relights to hold temperature; that is normal. Broil uses the ceiling burner and its own igniter.

Temperature and codes: an RTD sensor (about 1,080 ohms at room temperature) feeds the control. Samsung groups C-20, C-21 and C-22 as sensor faults; C-21 is shown when the sensor reads hotter than expected. C-d0 is a held or shorted key, C-d1 the door lock, C-F0 lost communication between main and sub boards, C-F1 a memory (EEPROM) read/write fault, and C-F2 a touch-panel communication fault. tESt/tE5t is demo mode: the oven will not heat but the gas cooktop still lights.

Convection and self-clean: a fan behind the rear cavity cover circulates heat from the gas burners in convection modes (True Convection models add their own convection heat source; check the model's spec sheet). Convection auto conversion lowers the entered temperature by 25°F by default, which customers often report as the oven running cold. Self-clean locks the door with a motorized latch above the door; lock problems show as C-d1.