Samsung Range Error Code C-43

C-43 means the main PCB (control board) in your Samsung range has detected that its internal temperature has risen to an abnormally high level. The board has built-in thermal monitoring that triggers this code to prevent further damage. The range should be powered off immediately and not used until the issue is resolved.

No, you should not continue using the range when C-43 is active. An overheating control board can sustain permanent damage and may pose a risk to other connected components. Disconnect power to the range until the main PCB has been inspected and replaced as needed.

The primary repair involves replacing the main PCB. Parts costs for a Samsung range control board typically fall in the range of $100 to $300 or more depending on the specific model. If you hire a technician, labor costs will add to that total, bringing the overall repair cost to roughly $200 to $500 or higher in some cases.

The diagnostic procedure requires disconnecting power, opening the back cover of the range, and replacing the main PCB. A knowledgeable DIYer with experience working on appliance electronics can perform this repair, but it does require comfort with disassembling the unit and handling circuit board components. If you are unsure, a certified appliance technician is the safer choice.

A power reset may temporarily clear the code, but if the underlying cause is a failing or overheated main PCB, the error will return once the board heats up again. Resetting without addressing the root cause does not fix the problem and could lead to further damage to the control board.