My Viking refrigerator(VCSB48) is out of warranty and is not air tight,
therefore, the temperature stays at 46 F spoiling foods fast and it
also fails to make ice properly. I tried weather strips to reduce the
room-temperature air intake without success. Do you have any
suggestions for solving this problem without making a big deal such as
correcting the structure of the refrigerator, etc.?

Hello thanks4info, I agree with what daniel2d had to say. I assume
that when your refrigerator was new that it functioned properly. You
seem to think that the problem is that it is not now air tight. That
being the case, a new seal would certainly solve your problem. A seal
kit for your model refrigerator is available from "Expert Appliance".
I talked with Kyle and he gave me the following info:

Part Number: VCSB-738W
Price: $385.59

Contact Info:
http://www.expertappliance.com/
(800)868-1820

When I expressed my shock at the price, Kyle said that Viking parts
are expensive (an understatement). I suppose that if the refrigerator
is in good shape otherwise that spending this much on a seal kit would
not be prohibitive.
At least this gives you a viable option.

Good luck, Redhoss

The info was someetter answer.what useful but did not solve my problem
Perhaps, this is a question where there was no b

Weatherstriping?  First you have to determine what the problem is.  If
you are sure its not air tight get a new OEM gaasket.  Could it be
that the compressor etc. is not working correctly or it needs
refrigerent?  You may have to put out for a service call.

Seriously... he already said that he tried to strip to frige to
support the seal yet did not work. Apparently there is a fat chance of
air leaking or other problem than the seal rim on the door!
By giving him a link to where to buy the expensive seal kit is
completenoy not answering the question.
If I were him I would want to know 1. where else in that particular
model has the potential of leaking, 2. what else could contribute to
the temperature rising, 3. and based on the particular model, which of
the factors in (2) is most likely.
all in all, isn't that so much easier to have a service all?