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Amana Microwave Error Code F6

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: June 11, 2026
⚠ High Severity 👨‍🔧 Call a Pro

Microwave relay failure detected

The most common cause of the F6 error on a Amana microwave is failed power relay on the control board (~55% of cases); start with: unplug immediately if it heats unbidden.

💰 DIY cost: $0–$0 👨‍🔧 Pro cost: $150–$320 Save $150+ by doing it yourself
Amana Microwave error code F6 on the display panel
How the F6 code appears on a Amana microwave display

What Does Error Code F6 Mean on a Amana Microwave?

Microwave relay failure detected.

The control board drives a relay that switches high-voltage power to the magnetron circuit, then reads a feedback signal to confirm the relay's actual state. F6 fires when that feedback disagrees with the commanded position — the relay is stuck closed, stuck open, or the sensing line is faulty. Unlike F2 (a keypad or thermistor-type fault), F6 is specifically the magnetron switching relay, which is why it can leave the oven unable to heat or, in rare cases, energizing when it shouldn't.

Models affected: Amana countertop and over-the-range microwaves with a board-mounted power relay and relay feedback sensing
What owners report: Owners commonly report F6 appearing at power-up or the moment cooking is started, sometimes with no heating at all. A brief power cycle occasionally clears a one-off glitch, but a code that returns usually points to a genuine relay or board failure that a technician should handle.

What Causes Error Code F6?

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

  1. 1
    Failed power relay on the control board 55% of cases
  2. 2
    Control board logic failure 30% of cases
  3. 3
    Harness fault in the relay sensing circuit 15% of cases

How to Fix Amana Microwave Error Code F6

👨‍🔧 Call a Pro Est. time: 1–3 hours
⚡ Safety first: Unplug the appliance before opening any panels or touching internal components.
  1. 1

    Unplug immediately if it heats unbidden

    A stuck relay that energizes the magnetron unexpectedly is a safety issue — unplug the unit.

    ⚠️ Unplug the microwave and do not use it until repaired.
  2. 2

    Power cycle

    Unplug for 5 minutes; if F6 returns, the relay fault is genuine.

  3. 3

    Replace the control board

    The relay is board-mounted; the whole control board is replaced.

    🔩 Amana microwave control board ($100–$220)
    ⚠️ High-voltage capacitor hazard — board replacement is a technician job.

How to Reset Error Code F6

Unplug for 5 minutes. If F6 returns, stop using the microwave.

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

Any relay fault in a microwave should go straight to a tech — the high-voltage section is lethal.

Average professional repair cost for this issue: $150–$320

Related Error Codes

F2
Touchpad/membrane shorted
⚠ Medium Severity

Same Code on Other Brands

Error code F6 appears on these other brands too. See every brand that shows F6 →

LG logo
LG Oven F6
Door lock switch open — door latch not detecting locked position
LG logo
LG Microwave F-6
Keypad/touchpad failure
Haier logo
Haier Refrigerator F6
Communication error — control board fault
LG logo
LG Washing Machine F6
Overcurrent error — excessive current detected in the motor drive circuit

Find Replacement Parts

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

🔩
Search PartSelect
Amana Microwave repair parts
🔧
Search RepairClinic
Step-by-step video guides

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

Frequently Asked Questions

Can I keep using my Amana Microwave when error F6 appears? +
It is not advisable. The microwave may still power on, but running it while F6 is active can worsen the control fault or damage related parts. Treat it as a soon-as-possible repair.
What most commonly causes F6 on a Amana Microwave? +
Across reported Amana microwave repairs, the most frequent is failed power relay on the control board (55% of cases), control board logic failure (30%), then harness fault in the relay sensing circuit (15%). Check them in that order before replacing any parts.
F6 keeps coming back after a reset — what should I check next? +
A reset only clears the stored F6 fault; if it returns, the control problem is still present. Move on to the physical checks — unplug immediately if it heats unbidden, then power cycle — since the code will reappear until the root cause is resolved. This is a repair most owners hand to a technician.
How much does it cost to fix Amana Microwave error F6? +
A DIY repair typically runs $0–$0 in parts, versus $150–$320 for a professional service call, so handling it yourself saves around $150. Expect the work to take a full service visit.
Which Amana Microwave models show error F6? +
F6 is documented on Amana countertop and over-the-range microwaves with a board-mounted power relay and relay feedback sensing. Other units sharing the same control platform can display it too, so the fixes here generally transfer across the series.

Sources & References

Content verified against manufacturer service documentation. Last verified: June 11, 2026.

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