Is it safe to seal the seams/gaps on washer and dryer units?

Question

Specifically, I have the following model units:
Maytag Washer WTW8040DW
Maytag Gas Dryer WGD8000DW4
The units come with open seams, and I'd like to know if it's safe to seal these?  Surprisingly, Google search didn't net any relevant results for me, and there's no mention in the manuals either.  I'd be using either 100% silicone, alex caulk, or some other sealant depending on safety implications.
EDIT: Here's a photo for clarification:

EDIT2: The objective I'm trying to achieve is sound- & vibration-dampening.  Please note that I have already implemented most standard "fixes" (see comments below), but short of purchasing actual soundproofing out-of-pocket, I believe this would achieve some functional effect.  I only want to make certain that there is no safety concerns with proceeding.

isherwood · Accepted Answer

Yes, it is safe to seal the housing seams with silicone caulk. You aren't going to cause fire or electrical problems doing so (within reason). Use a fine tip and press it in firmly so as to not make a goopy mess of your appliance.
However, I don't think this will accomplish your goal. If the unit is shaking around so much that it's squeaking and buzzing it needs other repair. If not, the sound will make its way out underneath or elsewhere anyway. Adding foam insulation inside could cause heat problems. There's a rather large motor in there, along with heating elements, and the system is designed to manage heat as it is through air convection and metal conduction.

Is it safe to seal the seams/gaps on washer and dryer units?

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