David May 31, 2025 for Model Number koce500ess09 Found the magnetron PN W1134197. It appears the diode is bad to, can not find the PN for the diode on the magnetron. Help please. Thank you Dave
1 Answer Hello David, thank you for contacting AppliancePartsPros.com This being an inverter model microwave, there is no individually serviceable diode. All of the high voltage components are part of either the Magnetron W11346197 or the Inverter W11325604. It is recommended by the manufacturer to replace both of these components together if either has gone bad because one of them failing generally damages the other. Read More...
Kay March 11, 2025 for Model Number WOC54EC0AS00 No code. Just says “Feature Not Available” when pressing “Cook” on microwave. What could be wrong with it?
1 Answer Hello Kay, thank you for contacting Appliance Parts Pros. The first thing I would try is to turn off the unit at the breaker for about 5 minutes and see if that resolves the issue. If that does not resolve the issue you may have a loose wire to the microwave filter board or fuse block, an open fuse, a bad door switch, or a failed control board. To further diagnose the issue the unit will need to be pulled out of its installation opening for access to components. Read More...
Larry April 19, 2024 for Model Number JMW3430WS02 Microwave portion of combo unit has stopped working. No error codes and convection oven portion of microwave works fine as does turntable and unit blows air as normal. In view of the foregoing am assuming that door switches are working. Am thinking either MAGNETRON Part Number: W11346197 or Microwave Inverter Part Number: W10217711. What am I missing and where should I start?
1 Answer Larry, with the power supply turned off, the magnetron W11346197 would need to be inspected for a damaged antenna and the terminals tested for resistance. The magnetron should measure less than 1 Ohm of resistance. If the magnetron tests good, the most likely failure would be the inverter W10217711. Read More...
Mark January 11, 2023 for Model Number KBHS109SSS05 My microwave has stopped heating. It sounds like it is working but the food doesn't heat. The same thing happened 2 years ago and I replaced both the magnetron and the inverter. Is there something else to consider that could be causing the components to fail? I am debating whether to repair again or replace the appliance.
1 Answer Mark, It would be suggested to check the door switches first to make sure that they are good. Then you can test the magnetron for less than one ohm of resistance. If the door switches and the magnetron are good then the issue would be with the inverter board if it is receiving 120 vac to it. Read More...
Paul February 22, 2018 for Model Number KEMS378SWH04 MICROWAVE ACTS LIKE IT'S RUNNING, BUT NO HEAT UP 1. I had a pro come out. He replaced the door switches, Still no heat, but after 22 seconds F1E5 error comes up. One of the switches did show poor function in the machine, but worked on the bench. 2. He said it was the inverter. Brought a new one, still same error code; cleared error code and repeated a couple of time. He called Kitchenaid. First level tech no help, second level said replace the inverter again, then the magnetron, and if still no good replace the appliance manager. I decided I could guess as well as them. 3. I ordered all three parts from you. Came quickly, good price. Put in the inverter in. Started to replace the magnetron, but when taking the thermistor (diagram part 21) out, it cracked and fell apart. AHA. I have that part on backorder someplace - nobody has it back to Whirlpool. Maybe never will come. OK, I decided the thermistor was safety device and shorted around it to test with the old magnetron. NO MORE ERROR CODE, BUT NO HEAT EITHER. I figure I don't actually USE the microwave this way, but I put the sides back on for testing purposes. 4. I read some of the other questions, looked at the circuit diagram, and checked my resistance through the magnetron terminals at < 1 ohm (across terminals), open either terminal to ground. This sounds like my existing magnetron is OK. 5. I'm assuming magnetron OK for now. I saw in another question you said diode of transform, but there is no diode on the online parts diagram nor the tech diagram that came attached in the microwave, and the only transformer isn't even on the same part of the parts diagram. Suggestions appreciated. Should I put in the appliance manager board? Thanks.
2 Answers Paul, This unit will not have a diode or transformer as it uses an inverter board in place of it. With the magnetron testing ok and the switches having been replaced then this will most likely be the appliance manager causing this issue but will want to replace that thermistor as well. Read More...
Paul February 22, 2018 for Model Number KEMS378SWH04 MICROWAVE ACTS LIKE IT'S RUNNING, BUT NO HEAT UP 1. I had a pro come out. He replaced the door switches, Still no heat, but after 22 seconds F1E5 error comes up. One of the switches did show poor function in the machine, but worked on the bench. 2. He said it was the inverter. Brought a new one, still same error code; cleared error code and repeated a couple of time. He called Kitchenaid. First level tech no help, second level said replace the inverter again, then the magnetron, and if still no good replace the appliance manager. I decided I could guess as well as them. 3. I ordered all three parts from you. Came quickly, good price. Put in the inverter in. Started to replace the magnetron, but when taking the thermistor (diagram part 21) out, it cracked and fell apart. AHA. I have that part on backorder someplace - nobody has it back to Whirlpool. Maybe never will come. OK, I decided the thermistor was safety device and shorted around it to test with the old magnetron. NO MORE ERROR CODE, BUT NO HEAT EITHER. I figure I don't actually USE the microwave this way, but I put the sides back on for testing purposes. 4. I read some of the other questions, looked at the circuit diagram, and checked my resistance through the magnetron terminals at < 1 ohm (across terminals), open either terminal to ground. This sounds like my existing magnetron is OK. 5. I'm assuming magnetron OK for now. I saw in another question you said diode of transform, but there is no diode on the online parts diagram nor the tech diagram that came attached in the microwave, and the only transformer isn't even on the same part of the parts diagram. Suggestions appreciated. Should I put in the appliance manager board? Thanks.
2 Answers Hello Paul, I would replace the inverter board W10217711 and the appliance manager WPW10350780 at the same time since the inverter board caused the fault code and it could be damaging the appliance manager board. The magnetron thermistor is W10852735. Read More...
Kenny February 16, 2018 for Model Number WCO95ECOABOO I AM GETTING A CODE OF F1 E5 from the microwave, I was advised to replace the inverter board but ended with the same results, I have turned off the power a couple times but get the same results. After replacing the inverter board the microwave ran for 20 seconds before the code appeared. Thanks for any help that you can offer.
Mark September 17, 2017 for Model Number JMC2430WR01 The parts diagram does not really match what I see under hood. Looking for Magnetron and believe found it but does not look anything like part listed on parts page? The problem with mine is it took longer than usual to heat something, then it will not heat at all. Control panel works fine. Blows air but never heats, convection side heats up okay, just will not microwave.
Willy March 16, 2015 for Model Number KEMS378SSS04 I purchased 3 times this magnetron model for my KEMS378SSS04 dual oven. Again returned to damage, not hard working more than three months. What should i check to make sure that other parts might be causing damage to the magnetron. let me know thank you.
1 Answer Hello Willy. Replace the diode with the magnetron in the unit. Also, make sure no one is using the microwave with metal inside it. This will damage the magnetron as well. Read More...
Mark December 16, 2014 for Model Number KEMS378SSS02 Hello, For testing the Magnetron,my documentation from the manufacturer says I should have 45 ohms between the two terminals for a normal magnetron, and infintie for abnormal. However when I test from terminal to terminal I get a reading of 0.00, or no resitance at all. Does that mean my magnatron is bad? Thanks, Mark
1 Answer Hello Mark. If the magnetron reads 0.00, It is bad. You should get a reading from it. Read More...