
The NZ30K7570 is a 30-inch electric radiant cooktop, listed on samsung.com as Electric Cooktop 30″ Digital-Analog Controls | Wi-Fi. On the NZ30K7570 an element that heats on high regardless of the setting is a control or relay failure rather than the element itself, and it is treated as urgent because it cannot be turned down.
Work on the NZ30K7570 begins with the breaker off and the glass cool; the top is lifted and the element or coil, its relay or power board and the touch control are measured rather than swapped.
Key Features
- 30-inch electric radiant cooktop
- SmartThings Wi-Fi connection
- Digital-analog control layout
Most Common Issues on This Model
One element cold while the rest heat
Cooktop switching itself off mid-cook
Hot-surface light staying on cold

