Product review (1 stars): He did return a few days later and replaced the light and assured me the oven was working fine. He asked me to use it for severa
I have an all-Viking kitchen which was installed when we built our house almost exactly two years ago (Oct 2013).  I have had nothing but problems with the oven; it is a complete lemon. (Model VESO 5302SS, which I did not buy at Amazon.  This is the top of the Double Oven VEDO530SS).  The installation was completed by a certified installer.

When first installed, the preheat light did not come on; it was completely non-functional.  Moreover, as measured by a high-quality oven thermometer (purchased separately), I could not get the oven to heat up to even 300 degrees without a TWO HOUR delay.  So far, I have been unsuccessful getting the oven to 450 degrees even one time.

I live 3 hours from Denver, and the Viking repair guy came all this way only to realize he had the wrong part to fix the preheat light.  He did return a few days later and replaced the light and assured me the oven was working fine.  He asked me to use it for several months (since I do not use it everyday), and see what happens.

The problem of the long delay in heating up  and never reaching the correct temperature still existed.  The first  and every  time I tried to use the oven, the minimum wait time was two hours; most of the time, the temperature never reached what was set. I tried using the oven for well over 6 months with no improvement in the problem.  The repair man returned a second time (third trip), said he calibrated the oven, and that the problem was likely my thermometer not measuring correctly.  He also said that it is within the oven specifications for temperatures to vary as much as + or - 25 degrees from any setting.  He further claimed that this oven was meant to be turned on by a chef at the beginning of the day and left on the entire day, and that it was likely not heating up properly since I only used it a few times per month.  He again requested that I use it for several months, that we was sure the problem was fixed.  Not so.

On the third repair call, the repair man brought the Viking Regional Manager with him to see me.  The RM was very cordial, asked me a lot of questions and after he and the repair man worked on the oven for a while, he said he was confident the oven would heat properly.  He reiterated that the oven was meant to be used by a professional chef and that only occasional use may not have the oven heat properly.  (If this is the case, why were there no comments to this effect on the website when I was researching appliances?)

The oven was unaltered by this most recent visit.  I had a dinner party for which the oven was crucial.  I deliberately started the oven 2 hours in advance of when I wanted to put in my roast, but after two hours, the oven had not reached 300 degrees (it had been set for 450 degrees).  The dinner was ruined, I had nothing else to serve.

About August 1, 2015, I went to the Viking website and submitted an email request for support.  After a month, I had heard nothing, so I called Viking Customer Support.  The CSR on the phone was very cordial, and said she would pass the message on to the Regional Manager, Norm Collins, whom I explained had already been to my home. (I am not absolutely sure this was the man who came, but the man who came was the Regional Manager at the time).  She assured me that he would contact me soon.  Since it was Labor Day weekend, I decided to give him the benefit of the doubt when I did not hear from him within a week  maybe he was on vacation  but today is October 2nd, and I have yet to hear from him.

In short, I must say that this oven is the absolutely worst product I have ever purchased, bar none.  And the customer service is no better.  The local repair man did come, but it took several calls each time before we had a date set for his visits.  At this point, I am at a loss as to how to proceed, other than to file a claim in small claims court.  I live in a new area, the 4th home of 19 additional homes to be built within the next few years.  You can be sure I will inform every new owner (in our frequent HOA meetings) to avoid Viking appliances like the plague.  My experience with the oven and with the customer service has tainted my view even of the appliances that seem to be working well so far.  Had I had the opportunity to speak with the Regional Manager several weeks ago, I would have requested a replacement oven; this oven has a 3 year warranty, and has never once worked properly.  However, at this point, I just want my money back.  I can no longer put up with such poor customer service.