Samsung Range C-22 — What It Means & How to Fix It
Also shown as C22 on some models.
C-22 is Samsung's sensor-malfunction code, grouped with C-20 and C-21: the oven temperature sensing circuit is misbehaving. Restart, then a 30-second power off, before a sensor diagnosis.
What this code means
C-22 sits in Samsung's sensor-malfunction family — its own UK document lists C-20, C-21, and C-22 together under 'sensor malfunctions,' meaning the oven temperature sensing circuit is the suspect. Samsung's steps for the family are the same: turn the oven off and restart it, and if the code continues, switch the power off for 30 seconds or more and reconnect. Codes that survive that routine point at the sensor, its wiring, or the board reading it.
Samsung's official information-code page groups C-22 with C-20 and C-21 as sensor malfunctions and gives the restart-then-30-second-power-off routine for all three. The model number is on the frame behind the storage drawer or the oven door frame.
Most likely causes
| Cause | How likely | DIY-fixable? |
|---|---|---|
| Oven temperature sensor or its circuit at fault | Common | No — technician job |
| One-off false reading after a power event | Common | Yes — restart and power off |
| Sensor connector or wiring issue at the rear | Occasional | Partly — inspect only |
| Control board misreading the circuit | Less common | No — technician job |
What you can try yourself
- Turn the oven off and restart it — Samsung's own first step for the C-20/C-21/C-22 family.
- If C-22 continues, switch the power off for 30 seconds or more, then reconnect it.
- Check the sensor connector at the back of the cavity only if you can safely reach it; it should be clean and fully seated.
- A C-22 that returns after the reset routine needs a technician to meter the sensor circuit before any part is replaced.
When to call a technician
- C-22 returns immediately after the restart and power-off routine.
- The oven refuses to preheat, or heats erratically.
- C-22 trades places with C-20 or C-21 on the display — a likely wiring fault.
Typical professional repair cost: No cost if a reset clears it; oven temperature sensor replacement typically runs $150–$300 including labor, with control-board diagnosis on top at $200–$450.
Frequently asked questions
How is C-22 different from C-20?
Samsung lists all three — C-20, C-21, C-22 — under the same 'sensor malfunctions' heading with the same reset routine. Which number you see depends on the model and the reading, but the path is the same.
Why does the 30-second power off matter?
It gives the control a clean restart and lets marginal sensor readings reset — the exact reason Samsung's official page pairs it with the restart as the two-step solution before service.
Can a C-22 code appear without a bad part?
Yes — power dips and the sensor self-test can throw false readings. That's why Samsung's routine is restart, then power off 30 seconds, before anyone opens the oven.
Sources checked
Error meanings can vary by model. This guide was checked against the documentation above; use the manual for the model number on your own appliance when it differs.
Related Samsung codes
- Samsung Range C-24 C-24 is Samsung's fast-temperature-rise warning: the cavity heated quicker than expected, most often because the vent on the back of the cooktop is covered.
- Samsung Range C-20 C-20 is Samsung's oven temperature sensor error: the sensor circuit reads open, shorted, or out of range, so the control board can't trust the cavity temperature.
- Samsung Range C-21 C-21 is Samsung's over-temperature code: the oven sensor detected the cavity hotter than the setpoint and shut heating down to protect the unit.
- Samsung Range C-F0 C-F0 is Samsung's communication error between the main control board and the display: the two stopped talking. A restart clears most cases; induction models have an official software-update fix.
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