Steve for Model Number JVM1740DMWW The problem with this microwave oven is that it doesn't get hot. Everything else works fine.
Answer Hello Steve. There are three components that can cause this. The magnetron, diode, and H.V. transformer. Remove the magnetron and look for cracked magnets or a burnt out tip. The diode should only read in one direction. If both of these are good, then the H.V. transformer would need to be replaced. Hope this helps. Read More... Answered by AppliancePartsPros.com | Wednesday, March 23, 2011