place a teaspoon of cooking oil in the pot and place on stove. Put a small amount of corn to be popped in the pot and the heat will do the rest. 1/4 cup of corn will probably overflow the pot so use small amounts first until you get the idea.
The latch mechanism (specifically the bottom latch which is tied to the sensor) is not locking in place. Try lubricant on the latch and receiving side first (I used wd-40, but it smells horrible, so try maybe bike grease or even veggie oil to see if it helps). Main problem is that the latch panel is attached w/thin metal which I bet was designed to fail after the warranty has passed! You basically need a T-20 torx screwdriver to open the microwave all the way up and bend the metal bracket back. I ended up taking a long wire and tying it through the bottom latch assembly (there is a hole) between a top and bottom hole on the frame of the microwave to keep it from ever moving again. You want to pull the entire assembly (black plastic) towards the microwave cavity.
DO NOT try to REPAIR this Inverter Power Supply (U) and also DO NOT RE-ADJUST PRESET VOLUME on the board. It is very dangerous to repair or adjust without sufficient test equipment because this circuit handles very high voltage and very large current. Off alignment or inverter board operation is dangerous. Operating a misaligned inverter circuit is dangerous due to the very high voltage and current that is produced by this board. Defective boards must be replaced with a new one.
Possible causes - door switch, or door switch assembly out of adjustment; plastic latch guides on door switches worn; door hinge worn, causing door to be out of alignment. If it's the last one, the unit needs to be checked for microwave radiation. If you need further help, I’m available over the phone at https://www.6ya.com/expert/david_29ad5d1dd86564b0
I'd say the door interlock switch has failed, and supplies a connection when it should not. Microwave ovens can be dangerous to anyone poking around inside, even when unplugged, so get a quote from a service tech. You might find that parts+labour is almost as much as a new one.
Microwave radiation being released through an open door is also a hazard, as it is known to cause eye cataracts, so don't get near if the oven does this.
Most probably the low voltage transformer of in the control panel is open . It has a thermal fuse which is between pin1 and pin 5 of the low voltage transformer. This fuse is however inside the transformer. If you get a DC resistance of about 350- 400 ohms between pin 5 and 6 of the transormer , connect an external 500ma fuse between pin 1 and pin5
It seems like you're experiencing an issue with your Panasonic microwave oven NNT551. If the clock button is not responding and you only see two dots when pressing the stop button, there might be a few things you can try to troubleshoot the problem:
Power Cycle the Microwave:
Unplug the microwave from the power outlet.
Wait for about 30 seconds.
Plug it back in and try setting the clock again.
Check for Child Lock:
Some microwaves have a child lock feature that can prevent certain buttons from functioning. Check your manual to see if your model has this feature and how to disable it.
Reset to Default Settings:
If there is an option in the manual or settings to reset the microwave to its default settings, try doing that.
Inspect for Physical Damage:
Ensure there is no physical damage to the control panel or any other part of the microwave that may be affecting its functionality.
According to videos, Panasonic require removal of the case. Some manufacturers including Panasonic have a small access door on the outside and my Panasonic Catering microwave did.
To cook an individual frozen pie in your Panasonic convection/grill/microwave, you can follow these steps:
Preheat the oven to 375°F.
Remove the pie from its packaging and place it on a microwave-safe plate.
Place the plate in the center of the microwave and close the door.
Press the "Convection" button on your microwave and set the temperature to 375°F.
Set the timer for 25 minutes.
Press "Start" to begin cooking.
After 25 minutes, check if the pie is cooked by inserting a toothpick into the center of the pie. If it comes out clean, your pie is ready! If not, continue cooking for another 5-10 minutes until it is fully cooked. This is a general guide and there might be variance with your particular device.
