GE · Microwave
F1 error-code guide
GE defines F1 as an open thermal sensor condition due to excessive heat in the microwave cavity.
Read the guideCurrent GE microwave coverage
Published GE microwave guides
This hub contains 10 published guides for select GE microwave error codes. Coverage is intentionally limited and does not include all codes or models.
Microwave runs but food stays cold? Use the microwave not-heating symptom guide.
Microwave will not begin a cook cycle? Use the microwave won’t-start symptom guide.
Seeing sparks or arcing instead of a code? Use the microwave arcing safety guide.
Source-backed guides
Choose the code shown on the appliance
Each card links to a guide that separates the detected condition from possible causes, preliminary checks, limitations, and service boundaries.
GE · Microwave
Probe error-code guide
GE says Probe can mean an open temperature probe or that the probe is not plugged in during a temperature-cook function.
Read the guideGE · Microwave
PF / 888 / 8888 status-message guide
GE describes PF, 888, and 8888 as displays that can appear after initial installation or restoration of power rather than automatically indicating a failed component.
Read the guideGE · Microwave
18 power watch code / 18 error-code guide
GE says the 18 power watch code indicates an issue with the electronic control in the microwave.
Read the guideHow to use this collection
Sources, context, and safety remain part of every guide
Documented context
Each guide identifies the manufacturer support material reviewed and explains where that material has model or applicability limits.
Clear safety boundaries
Homeowner observations remain separate from disassembly, electrical work, internal testing, and other work that belongs with a qualified professional.
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