Vacuum on foodsaver II seems to have slowed down or quit working any suggestions? and at times seal doesn't work. any parts source?

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.

you are not using a "good" bag. Make sure there are no holes and that the bottom and sides of the bag are properly sealed. It will run all day and not pull the air out if the seal is broken anywhere.

I would recommend a new heating element
http://www.elementsandmore.com/

The tape trick didn't work for me. Had to cut the wires. Works for now.
.

Does the vacuum seem to run forever and it doesn't seal?
Clean the black foam seals

Replace them if needed. they can be purchased from Tilia
WWW.FOODSAVER.COM

Sealing always tends to be the problem with FoodSaver because during the course of normal wear and tear, the sealing strip and wire will naturally need to be replaced.

You can get replacement heating wires and strips at www.elementandteflon.com

We started out selling just replacement parts for heat impulse sealers but we kept on getting customer requests for FoodSaver parts so we've added that section to our website.

This is likely happening because the unit cannot detect that a vacuum has formed, and as a result, the unit never "turns on" the heating element to seal the bag, with the gaskets around the vacuum channel being the probable culprit. The Foodsaver gaskets will deform and/or dry out with time, just like in any device, but you don't necessarily have to replace them. I've tried this inexpensive solution on my own Foodsaver V2490, and it works perfectly.
Buy some food-grade silicone grease and apply it to both the upper and lower gaskets. I remove the gaskets and coat both sides with a thin layer of grease before replacing them in their respective channels. And since this grease will be absorbed and/or dry out with time, you will have to do this occasionally, so I also flip the gaskets (i.e. turn them over) whenever I apply the grease.
You can buy a 2 oz container of silicone grease at any dive store, or you can buy it over the Internet by searching for "Trident silicone grease".
This is a link where you can buy it for around $7.00:
Dolphin Dive Center
I do not work at this dive center, but I am a scuba diver and already had some grease that I use for the numerous rubber gaskets in my gear. The 2 oz. jar will last you several years, and you will find many other uses for it around the house since the grease will last longer than a spray.

I just spoke to customer service. I was told there is no replacement part for the heating element. They did offer me a discount on a new Foodsaver.

I had the same problem and got this information from Foodsaver:

Turn Foodsaver unbit on and press the cabncel button. That should release the unit for cleaning.

It worked for me!

i have a game saver plus. when i start the seal light comes on then it sucks the door closed then the seal light comes on again and the door opens and it stops