Joe for Model Number GE JE1590SH02 fabricated in 2005 The convection section of the microwave will not heat up. The heating element has continuity @ .9 ohms. The Thermistor (part #233591) puts up 281K ohms at room temp. Resistance drops as it is placed in hot water. (Negative temp coefficient). The Oven cavity Temp cut out ( part # 235672) has continuity @ .7ohms. The microwave section works perfectly in all respects. I purchased a heating element expecting that would be the problem before I did any troubleshooting but with continuity across the contacts I don't see any point in replacing it. What am I missing?
Answer Hello Joe. Based on the information you provided, you will need to order and replace the main board WB27X25300 on the unit. Thank you. Read More... Answered by AppliancePartsPros.com | Tuesday, October 31, 2017