About this guide
- Written by ApplianceWorth Editorial Team
- Technical contact Victor — appliance technician
- Record updated 2026-07-01
- Applies to Samsung microwaves
- Confidence medium
- Also displayed as SE
- Sources Manufacturer service documentation and field-repair experience · Methodology · Report a correction
The record-update date is a database timestamp, not proof of a fresh model-specific technical review. Check the applicability below and your manufacturer’s instructions before acting on a guide.
What this code means
The microwave detected a key held continuously or a short in the keypad circuit.
Most likely causes
- A key is physically stuck
- Grease or moisture has entered the control area
- The membrane keypad or touch panel has failed
- The ribbon cable or main control is shorted
Safe checks for the owner
- Unplug the microwave and wipe the exterior control panel, then let it dry.
- Do not remove the outer cover; microwave high-voltage components can retain a dangerous charge.
- Request service if the code returns or the microwave starts by itself.
Estimated U.S. repair cost
$220–$480, depending on model, access, parts availability and local labor.