what you need to do is call the person who installed windows< and tell them you have a seal failure, you are loosing heat, and not holding in the cool.
You need to consult the manufacturer or retailer to describe the fault; they'll tell you if it will be necessary for a technician to check out the oven.
I have just done this after trying other methods suggested on the net.The simplest way was to warm the tape itself with a hair dryer then scrape the tape off with a knife or plastic card. Soak the...
Windex. paper towels. Small scraper.Spray Windex let set a minute. try scraping it off with the scraper, add windex as needed. Wipe clean with a paper towel.