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Error code reference

Sharp Microwave Error Code ERROR

Displayed when the AH sensor cannot detect food vapor during sensor cooking, or when the door is opened or Stop/Clear pad is touched during the first…

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What the ERROR error code actually means

This error means your microwave's steam-detection sensor couldn't do its job during sensor cooking mode. It can happen because the oven wasn't warmed up long enough, the inside was wet, or the sensor itself has failed. Try making sure the microwave has been plugged in for at least 5 minutes and the interior is dry, then start the cook cycle again without opening the door.

Diagnostic procedure

The full ERROR procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check initial sensor cooking conditions (oven plugged in at least 5 minutes, room temp below 95°F, exterior of cooking container and oven interior are dry). If conditions are met, perform AH Sensor Test (Procedure L) to determine if AH sensor or control unit is defective.
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Most common causes of ERROR

Ranked by how often they cause this code
  1. 1Improper sensor cooking conditions
  2. 2Door opened or Stop/Clear pressed during initialization
  3. 3Disconnected AH sensor wiring
  4. 4Defective absolute humidity sensor
  5. 5Faulty control unit

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Questions people ask about ERROR

What does ERROR mean on a Sharp microwave?
The ERROR code on a Sharp microwave indicates a problem with the sensor cooking system, specifically the Absolute Humidity (AH) sensor that detects steam from food. It can appear when the sensor fails to detect vapor, when the bridge circuit cannot balance due to a disconnected sensor, or when the door is opened or Stop/Clear is pressed during the first 16 seconds of sensor cooking. Environmental factors like a wet oven interior or insufficient warm-up time can also trigger it.
Is it safe to use my Sharp microwave while the ERROR code is showing?
The ERROR code disables sensor cooking mode, so you should not attempt to run a sensor cook cycle while it is active. Standard timed cooking may still function, but the underlying sensor issue should be diagnosed before relying on the oven for sensor-based cooking. If the error is caused by a disconnected or failed component, continuing to use the oven without repair could lead to improperly cooked food.
How much does it cost to repair a Sharp microwave showing the ERROR code?
Repair costs depend on the root cause. If the issue is environmental or a simple wiring reconnection, there may be no parts cost at all. Replacing the absolute humidity sensor typically runs in the range of $20 to $60 for the part, plus labor if a technician is involved. A control unit replacement is more expensive, generally ranging from $80 to $200 or more for the part depending on the model, making professional diagnosis worthwhile before committing to that repair.
Can I fix the ERROR code myself without replacing parts?
In many cases, yes. Start by confirming the microwave has been plugged in for at least 5 minutes, the room temperature is below 95 degrees F, and both the oven interior and the outside of your cooking container are completely dry. If the error appeared because you opened the door or pressed Stop/Clear during the first 16 seconds of a sensor cycle, simply restarting the cook cycle under the correct conditions may resolve it. If those steps do not clear the error, further diagnosis involving the AH sensor wiring or the sensor itself will be needed.
Will unplugging the microwave reset the ERROR code?
Power cycling the microwave may clear the displayed ERROR code temporarily, but if the underlying cause is a failed AH sensor, disconnected wiring, or a faulty control unit, the error will return during the next sensor cooking attempt. If the error was caused by opening the door too early or by wet conditions, a reset combined with correcting those conditions may resolve the issue permanently.

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