Foodsaver v3825 SOMETIMES WHEN I TURN THE UNIT ON, THE CANCEL BUTTON COMES ON SO IT WON'T WORK. I HAVE TO TRY AGAIN LATER. SOMETIMES IT WORKS AND SOMETIMES THE BUTTON COMES ON AGQIN. IF I WAIT OVERNIGHT IT ALWAYS WORKS AT LEAST THE FIRST TIME BEFORE IT STARTS ACTING UP AGAIN.

It sounds like you are having some issues with your FoodSaver vacuum sealer. Here are a few things you can try to troubleshoot the problem:

1. Make sure that the FoodSaver is plugged in and turned on.
2. Check the sealing strip on the vacuum sealer to make sure it is clean and free of debris. A dirty or damaged sealing strip can prevent the vacuum sealer from working properly.
3. Check the vacuum bag to make sure it is properly positioned in the vacuum sealer. The bag should be inserted with the open end facing the sealing strip.
4. Make sure that the bag is not too full. Overfilling the bag can prevent the vacuum sealer from working properly.
5. If the problem persists, you may need to take the FoodSaver to a repair center for further diagnosis and repair.

Does it try to vacuum but never flattens the bag? Make sure the bag you are using is completely sealed on the opposite end. Otherwise, the seal on the sealer is probably allowing air to leak into the sealer. If it has a foam sealer, I've found it sometimes helps to run the foam sealer under water, squeeze out the excess water, reinsert the foam sealer (make sure it is seated all the way) and then try again to seal the bag.

I've found with mine I have to hold down firmly on the top while unit is heating the bag to seal it. I continue to hold the lid down for about 10 seconds after heating stops until the seal cools. Hope this helps.

Pull out the long rubber piece on the top, clean any debris, replace firmly.

The tape trick didn't work for me. Had to cut the wires. Works for now.
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you have got dust in the micro switch and it is not latching on, if you look at this and clean it, that will solve your problem, however blowing the motir has probably wrecked the motor bearings.

i had a similar thing happen and just got off the phone with dyson. there is a resettable switch on the handle. they told me to start the vacuum in the upright position, put it in the non upright position, then push and hold in the beater bar switch which is located next to the on/off button for 10 seconds and the beater bar should start to function once again

Here is the link to your foodsaver manual.
http://www.foodsaver.com/Support.aspx?id=spma&mgid=1

If you have a 400 series Roomba, try removing the battery, then holding down the power button for ten seconds, then recharging the unit before you run it again.

If you have a 500 series Roomba, don't take out the battery-- just press and hold the "spot" and "dock" buttons for about fifteen seconds. The Roomba will play a tune, and you can then charge it and try running it again later.