Samsung Induction Cooktop Code C3 / C4: Sensor Reading
On the Samsung NZ30K7570 induction cooktop, C3 and C4 are sensor codes. The control has found that one of the cooktop's sensors is not giving a reading it can use, so it shows the code and…
- Code
- C3 / C4
- Appliance
- Cooktop
- Brand
- Samsung
- Warranty
- 30-day workmanship
What C3 / C4 means
On the Samsung NZ30K7570 induction cooktop, C3 and C4 are sensor codes. The control has found that one of the cooktop's sensors is not giving a reading it can use, so it shows the code and the zone may not heat the way you expect. The NZ30K7570RS/AA is the model this code list was written for. We have not confirmed the same wording on other Samsung induction cooktops, so on those we treat it as a guide, not a rule. Most owners notice it right after switching a zone on.
Common causes of C3 / C4
- Which sensor circuit the code points to, C3 or C4
- Sensor wiring and connectors at the control
- Whether the code returns after a full power reset
- Whether the reading changes when the glass is cool
1. Turn the cooktop off and let the glass cool. 2. Turn it back on and try the zone again. 3. If the code returns, unplug the power cord for at least 30 seconds, then plug it back in. 4. Make sure the glass is dry and nothing is sitting on the control keys. 5. If the code shows up again, stop using that zone and call us.
- A restart clears a one-time glitch but cannot tell us whether a sensor reading is truly off.
- We test the sensor circuit behind the code before anything is replaced.
- The warranty on our work runs 30 days, and the price is agreed in writing first.
Other Cooktop codes
Are C3 and C4 the same problem?
They are listed together as sensor codes on the NZ30K7570. Each points to its own sensor reading, so we note which one you see when you call and check that circuit first.
Is it safe to keep cooking after the code appears?
We would not. An induction zone that cannot read its sensor cannot regulate itself properly. Turn it off, run the restart steps, and call us if the code returns.
Does unplugging the cooktop really help?
Sometimes. A 30-second power-off lets the control start fresh, which clears a temporary glitch. If the code comes straight back, the reading itself needs testing.
Still seeing C3 / C4?
A technician diagnoses it on site and gives you the price in writing before any work starts.