Samsung Range Error Code C-22

The C-22 code on a Samsung range indicates that the sub PCB temperature sensor is either open (no signal) or shorted (faulty signal) during oven operation. This sensor is part of a secondary circuit that helps the control board manage oven temperature. The range displays this code to prevent unsafe operation when it cannot get a valid temperature reading from that sensor. A reset may clear the code if it was caused by a temporary glitch, but a recurring code usually points to a failed sensor, wiring issue, or board fault.

You should not continue using the oven while the C-22 error is active. The code indicates the control board cannot reliably monitor oven temperature through the sub PCB sensor, which means the oven cannot regulate heat accurately. Using the appliance in this state could result in overheating or unpredictable temperature behavior. Stop oven operation and address the fault before resuming use.

Repair costs for a C-22 fault vary depending on the failed component. A replacement sub PCB temperature sensor is typically a lower-cost part, while a sub PCB board replacement will cost more for the part alone. Adding a technician's labor, total repair costs can range from around $100 to $350 or more depending on your location, the specific parts needed, and the service provider. Getting a diagnostic visit estimate before authorizing repairs is a good practice.

The first step you can do yourself is press OFF/CLEAR and then unplug the range for at least 30 seconds before restoring power. If the code does not return, the issue may have been a temporary electrical fault. If the code comes back, diagnosing the problem further requires testing the sensor resistance with a multimeter and inspecting the wiring harness, which is best handled by a technician with experience in appliance repair.

A reset can clear the C-22 code if it was caused by a temporary glitch rather than a hardware failure. Press OFF/CLEAR on the control panel, then disconnect all power to the range for at least 30 seconds before plugging it back in. If the code reappears after the reset and a normal oven cycle, the underlying cause is a physical component fault that requires inspection and likely part replacement.