Donald Unit was heating food for several minutes then I noticed it sounded strange. Heat was coming out of the lower cooling vent, it's usually warm, food stopped heating. Inside of cabinet was very warm all over. Placed a cup of water inside and ran for a minute. Water was still room temperature. A couple of hours later I tried to heat water and it boiled. Strange noise is gone too. I was going to take it apart to start troubleshooting but now it wouldn't quit.
Answer Hello Donald. Check and see if one of the fan motors failed inside the unit. It may not be cooling the magnetron. Read More... Answered by AppliancePartsPros.com | Thursday, October 1, 2015