There's could be several elements to look into;
-is the vacuum still working or it stopped.?
.if it stopped without sealing chances are that the heating wire is broken.
if it's still try to vaccum, the seals probably not doing their and the expected vacuum levels are not reached.
To test that you can moister the foams seals with a paper towels.
If that worked, think about replacing the seals.
To deal with the sealing wire, you usually have to pull off a teflon tape to see it. I do believe that you can have a replacement for the wire. I personally never had to replace one.
SOURCE: foodsaver compact vac 550 sealing strip doesn't seal
My machine stopped working because the sealing ribbon was broken and the tape was worn. FoodSaver no longer does repairs. I knew the wire was called nichcome ribbon so I searched that. I checked the resistance of the ribbon on my machine, it was about 3.8 ohms. I found a site called mpakonline.com and from their site I bought 1/16 x .005 nichrome ribbon and 3/8 x 5 MIL. x 18 YD Acrylic Teflon Tape. The total cost of these items was about $36.00, the ohm value of their ribbon was 1.66 somewhat less.I used ends from radio shack made the repair and it has been working fine for the last two months and I have enough material leftover for about ten more repairs.
SOURCE: Foodsaver Food Sealer Vacuum V2240 T: Foodsaver Professional II Turbo. Vacuum pump work...
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.
SOURCE: foodsaver V845 is not sealing?
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
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