Error code reference

Samsung Microwave Error Code SE

Key Short Error

Key Short Error - If KEY input is sensed for more than 60 seconds, SE error code occurs and converts to cancel mode.

First step from the service manual

Turn off, set, and restart.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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Step-by-step tests with expected resistance, voltage, and continuity values
Wiring diagram references and connector pinouts from the OEM service manual
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SE on my Samsung Microwave

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Key Short Error - If KEY input is sensed for

From Service Manual 787859, p.31:

1.Turn off, set, and restart.

2.Measure control board supply voltage at the test points. Expected: 12 VDC and 5 VDC; a drop below 4.75 VDC on the logic rail points to a failed onboard regulator.

3.Inspect all connectors on the main control for corrosion, thermal stress, or backed-out pins. Reseat each connector with the power disconnected.

Part DA92-00384N

Main PCB assembly

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First step from the service manual

Get the full diagnostic procedure for SE.

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