Written by
Nadia Okafor Appliance Care EditorPublished October 26, 2026
VERIFIED
Error codeE-42
ApplianceMicrowave
A Samsung microwave that flashes E-42 is reporting a short easy/PH sensor error; some panels print it as E42. The listing applies to the present series of Samsung microwaves.
Remove electricity from the microwave at the plug or the breaker panel.
With moisture inside, wait until it is dry; without any, a minute is enough.
Turn the power on again and confirm the message has cleared.
If the display shows E42 again, put in a service request.
Repair help in San Francisco and the Bay Area
For a Samsung microwave in San Francisco, look at Samsung microwave repair. Our San Francisco number: (415) 969-6153. Note the model number and the E-42 message, plus how you reset it.
Model compatibility: Samsung reuses codes across series and model years, so E-42 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
E-42 is Samsung's short easy/PH sensor error.
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?
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