Samsung Microwave Error Code F-1

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: June 10, 2026

⚠ Medium Severity 🔧🔧 Moderate DIY

Keypad membrane failure — dead or stuck key

The most common cause of the F-1 error on a Samsung microwave is keypad membrane worn or failed (~70% of cases); start with: power cycle the microwave.

💰 DIY cost: $40–$90 👨‍🔧 Pro cost: $150–$280 Save $110+ by doing it yourself

Samsung Microwave error code F-1 on the display panel — How the F-1 code appears on a Samsung microwave display

What Does Error Code F-1 Mean on a Samsung Microwave?

Keypad membrane failure — dead or stuck key.

The control board scans the keypad membrane as a matrix of row and column contacts. F-1 fires when the board reads a key line as permanently closed (stuck) or fails to detect an expected contact, suggesting a shorted or open membrane trace. Unlike SE/5E stuck-key codes on some units, F-1 on Samsung typically points to the membrane or its ribbon rather than the display; a control-board input failure is the least common cause and is diagnosed only after a membrane swap fails.

Models affected: Samsung over-the-range and countertop microwaves with membrane touch keypads, including the ME19R7041FS

What owners report: Owners commonly report F-1 appearing on its own during standby, sometimes after cooking steam or grease reaches the panel. A power cycle plus thorough drying of the keypad often clears it temporarily; if the code returns quickly, a worn membrane is the usual culprit.

What Causes Error Code F-1?

Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:

1

Keypad membrane worn or failed 70% of cases
2

Moisture/grease behind membrane 20% of cases
3

Loose keypad ribbon connector 5% of cases
4

Control board input failure 5% of cases

How to Fix Samsung Microwave Error Code F-1

🔧🔧 Moderate DIY Est. time: 30–60 min

⚡ Safety first: Unplug the appliance before opening any panels or touching internal components.

1

Power cycle the microwave

Unplug for 2 minutes to reset the control, then plug back in and test whether every key responds normally.
2

Clean and dry the keypad

Wipe the panel with a barely-damp cloth and dry it fully; moisture around the membrane can hold a key on.
3

Replace the keypad membrane

If F-1 returns after cleaning and reset, replace the membrane or keypad assembly for that exact model.

🔩 Samsung microwave keypad ($40–$90)

How to Reset Error Code F-1

Unplug the microwave for 2 minutes, dry the keypad area, then restore power and test all buttons; if F-1 comes back, the membrane has failed and needs replacement rather than repeated resets.

Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.

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When to Call a Professional

Call a technician if a new keypad membrane doesn't clear F-1, because the control board's key-input circuit has failed and opening the microwave case exposes components that can retain dangerous high voltage.

Average professional repair cost for this issue: $150–$280

Related Error Codes

Touchpad keypad error — button stuck or panel failure

⚠ Medium Severity

F-3

Touchpad/membrane failure

⚠ Medium Severity

Same Code on Other Brands

Error code F-1 appears on these other brands too. See every brand that shows F-1 →

LG Oven F1

Oven temperature sensor open circuit

Whirlpool Dryer F01

Main control board failure

Whirlpool Oven F1

Control board failure

GE Appliances Oven F1

Electronic control (ERC) failure — loss of element relay backup protection

Find Replacement Parts

Use these links to find the exact replacement parts for your Samsung Microwave:

🔩

Search PartSelect

Samsung Microwave repair parts

🔧

Search RepairClinic

Step-by-step video guides

External links — ApplianceErrors.com is not affiliated with these retailers.

More Samsung Microwave Error Codes

F-10 Thermistor shorted — over-temperature protection

Frequently Asked Questions

Can I keep using my Samsung Microwave when error F-1 appears? +

You often can for a cycle or two, but the control-panel issue behind F-1 will keep interrupting normal operation until it is fixed. Plan the repair rather than ignoring the code.

What most commonly causes F-1 on a Samsung Microwave? +

Across reported Samsung microwave repairs, the most frequent is keypad membrane worn or failed (70% of cases), moisture/grease behind membrane (20%), then loose keypad ribbon connector (5%). Check them in that order before replacing any parts.

F-1 keeps coming back after a reset — what should I check next? +

A reset only clears the stored F-1 fault; if it returns, the control-panel problem is still present. Move on to the physical checks — power cycle the microwave, then clean and dry the keypad — since the code will reappear until the root cause is resolved. This is a moderate job — a multimeter and some disassembly are usually involved.

How much does it cost to fix Samsung Microwave error F-1? +

A DIY repair typically runs $40–$90 in parts, versus $150–$280 for a professional service call, so handling it yourself saves around $110. Expect the work to take roughly 30–60 minutes.

Which Samsung Microwave models show error F-1? +

F-1 is documented on Samsung over-the-range and countertop microwaves with membrane touch keypads, including the ME19R7041FS. Other units sharing the same control platform can display it too, so the fixes here generally transfer across the series.

Sources & References

• Samsung Support — Error Codes — official manufacturer documentation
• Our editorial & verification policy

Content verified against manufacturer service documentation. Last verified: June 10, 2026.

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