Written by
Adrian Soto Appliance Repair Content SpecialistPublished September 5, 2026Updated October 20, 2026
Error codeC-11 / C11
ApplianceMicrowave
Quick answer
C-11 (C11) is an error with the gas/easy/PH sensor on a Samsung microwave. Unplug, let it dry or wait, then request service if it returns.
Model compatibility: Samsung reuses codes across series and model years, so C-11 / C11 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
C-11 is an error with the gas/easy/PH sensor on a Samsung microwave.
Seeing C11 on a Samsung microwave? That code stands for an error with the gas/easy/PH sensor. It belongs to the current Samsung microwave code list.
What C-11 means
C-10 and C-12 appear on the same line of the list and share the label an error with the gas/easy/PH sensor.
Reset and check
Turn the microwave off at the breaker or unplug it from the wall.
If the electronics recently met moisture, such as a spill or steam rising from a cooktop, give the microwave time to dry.
Dry already? Pause for 60 seconds, then turn the microwave on.
If the code returns, request service.
Similar entries
Related codes from the same table:
C-10: Samsung reads it as a gas/easy/PH sensor error.
For a Samsung microwave in Los Angeles, call (310) 896-4231 and describe what the display shows. Tell us the code, give the model number, and say whether the unplug-and-wait reset changed anything. microwave repair
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
