Skip to main content
Whirlpool Home Appliances

Rainbow Colors in the Oven Door Glass

When viewed under certain light sources or angles, the glass will have a green, purple, red or rainbow colored appearance.



  • This is a normal characteristic of the oven door glass.  It does not require service.  
  • The green, purple, red or rainbow appearance in the oven door glass is due to the inner oven door glass being coated with an oxide compound. 
  • The oxide coating is a heat barrier used to reflect oven heat back into the oven which reduces heat loss and helps maintain a cooler oven door exterior.