Troubleshooting - An Error Code appears in the Microwave display window.

This indicates the fan is operating to cool the electric components. The word "COOLING" will disappear after the fan stops. This is normal operation.

, Child or Lock

 

Method 1

The CHILD LOCK was activated by pressing [Function] pad and selecting "CHILD LOCK ON".

To deactivate the LOCK,

1. Press [Function].
2. Press [5] to select "CHILD LOCK ON/OFF".
3. Press [2] to select "CHILD LOCK OFF".  (Press [1] to select "CHILD LOCK ON" to turn the child lock back on.)

Method 2

For Models: NN-ST27HB, NN-ST27HW, NN-SE284

The CHILD LOCK was activated. Using this system will make the oven controls inoperable; however, the door will open.

To deactivate the LOCK,

1. Tap  key 3 times. The display will return to colon or time of day when Child Lock has been cancelled.

Method 3

1. To set: Press [Start], [Start/Set] button or [Start] dial 3 times.
   • The lock symbol or  or the word "LOCK" or the word "Child" appears in the display window.
     • For Some models a  will display on the display window.
   • The lock symbol or  or the word "LOCK", the horizointal line or the word "Child" continues to be displayed until Child Safety Lock is cancelled.
   • The keypad may be pressed but the microwave will not start.
      
2. To set or cancel child safety lock, The [Start] or [Stop/Reset] pad must be pressed 3 times within 10 seconds.
   • The display will return to a colon, time of day or "0" when Child Lock has been cancelled.

Note:

1. You can set the Child Lock feature when the display shows a colon, time of day or "0".

The Microwave is in Demo Mode. Demo Mode is designed for retail store display use. In this mode, the oven can be demonstrated with no power in the oven. When in Demo mode the microwave may appear to operate, however will not heat or cook the food. Turn Demo mode Off.

Refer to "What is Demo Mode" to turn mode off.

Demo Mode is designed for retail store display use. In this mode, the oven can be demonstrated with no power in the oven. When in Demo mode the microwave may appear to operate, however will not heat or cook the food. Turn Demo mode Off.

Refer to "What is Demo Mode" to turn mode off.

"The Device is Unresponsive" displays as a banner on the Alexa App. This occurs due to loss of connectivity with Alexa cloud services and may persist until the Microwave Oven is disconnected from its power source and reconnected.

1. Therefore reset the power on the Microwave by disconnecting it from its power source and reconnecting.
2. If resetting the power by disconnecting it does not resolve the issue, disconnect the Microwave from Alexa by deleting it from the Alexa App. Re-register the Microwave through the Alexa App operation. Refer to How to Factory Reset the Microwave Oven and How to select the functions and settings for the initial set up of the microwave oven.

The water tank is empty. Refill the water tank, position back in the oven and touch Start pad to resume cooking.

The oven temperature is too high from previous use (The cavity is overheated) and an auto program can not be set. Cooking mode and time may still be set manually. Wait until it cools down. For faster cooling open the door.

The water tank is empty. Re-fill the water tank, position back in the oven. Press [Stop/Reset] pad to reset.

Oven is overheated

When Oven Cavity is overheated or room temperature is higher then fermentation temperature it will give a "U50" error. Please allow the oven too cool down. Once it cools down and "U50" disappears from the Microwave display you may resume operation of the Oven.

Drain water function has been used 3 times uninterruptedly.

Refer to your models Operating Manual for specific model procedure.