mypros+
Error code reference

GE Microwave Error Code Err

During a Sensor Cooking program, the door was opened or Start/Pause was pressed before steam could be detected, or steam was not detected in maximum…

Avg. service call
$285
National average. Trip fee plus diagnostic plus labor. Before parts.
MyPros+ 3-day pass
$9.95
Same diagnostic steps, on your phone. Start now.
You keep in your pocket
~$275
Even before you buy the part.
Skip the service call. Fix it yourself.
Full procedure unlocks instantly.
Get Started

What the Err error code actually means

Your GE microwave shows Err when it was trying to automatically sense steam from your food but could not detect it in time, or when the cooking was interrupted by opening the door or pressing pause. This only happens during the automatic Sensor Cooking modes, not during regular timed cooking. You can press Cancel to clear the message and then manually set a cook time instead.

Diagnostic procedure

The full Err 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
Press Cancel/Off to clear the error. If steam was not detected, use Cook Time to heat for more time.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock Err procedure $9.95

Or subscribe: $29/month for unlimited access to all codes plus Max AI diagnostics.

Most common causes of Err

Ranked by how often they cause this code
  1. 1Door opened or Start/Pause pressed during sensor cycle
  2. 2Food not producing sufficient steam
  3. 3Contaminated or dirty humidity sensor
  4. 4Faulty humidity sensor
  5. 5Loose or damaged sensor wiring connection

Most DIYers save hundreds by diagnosing before ordering parts.

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass

Questions people ask about Err

What does Err mean on a GE microwave?
Err on a GE microwave indicates that the Sensor Cooking program could not detect steam from the food being cooked within the maximum allowed time. It can also appear if the door was opened or Start/Pause was pressed before steam was detected. This code only occurs during automatic Sensor Cook modes, not during standard timed cooking. Pressing Cancel/Off clears the error.
Is it safe to use my GE microwave after the Err code appears?
Yes, the Err code does not indicate a dangerous condition or a failure in the magnetron or high-voltage components. It is a feedback error from the sensor cooking system only. You can continue using the microwave safely by switching to manual Cook Time mode until the underlying cause is resolved.
How much does it cost to repair a GE microwave showing the Err code?
If the error is caused by user interruption or incompatible food types, there is no repair cost at all. Cleaning the humidity sensor is also free. If the humidity sensor itself needs to be replaced, parts typically range from $15 to $50 depending on the model, and professional labor can add $75 to $150 or more to the total. In many cases this error resolves without any parts or service cost.
How do I fix the Err code on my GE microwave?
Press Cancel/Off to clear the Err code. If the food is not fully cooked, use the Cook Time function to manually set additional heating time rather than relying on Sensor Cook. If the error keeps occurring with foods that normally produce steam, clean the inside of the microwave cavity to remove any grease from the humidity sensor area. Persistent errors after cleaning may indicate a faulty sensor that needs replacement.
Will resetting my GE microwave clear the Err code?
Pressing Cancel/Off will clear the Err code immediately. You can also unplug the microwave for a minute and restore power as an alternative reset method. However, if the conditions that caused the error, such as dry food, a dirty sensor, or a faulty sensor, are not addressed, the code will return the next time Sensor Cook is used.

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass