No Power to Microwave
As an update to an earlier post the ceramic in-line fuse tests ok., and the door switches check out ok. Four thermostats are located within the unit--one is what they used to call the flame arrestor and is located in the top of the unit pointing downward and shows continuity (#AP3994055), one is on a bracket attached to the side of the magnetron and shows no continuity (#AP4344046), one is attached to the bottom panel and shows no continuity (part # is the same as the one attached to the magnetron), and the fourth is attached to the bottom panel adjacent to the one just mentioned--this one shows continuity (#AP3994357). Perhaps I am barking up the wrong tree but I thought that all four of these thermostats should show a continuity, but the two with the same part # are open. Would this be a coincedence, and if open would this shut all power off to the unit, or could it be another issue. any comments would be greatly appreciated---Larry
another update--I tested the diode and found no resistance even with swapping the lead ends, and the capacitor checked out ok. So as a minimum I will buy a new diode.
Last edited by millerl513 : 04-18-2010 at 07:25 PM.