This ceramic microwave fuse is just over an inch in length. It is white in the center, and metal on both ends. This is a 20-amp fuse, and is used to power your microwave. If the touch pad on the micro...
This is the replacement monitor switch for your microwave. It is black in color and measures approximately 1 inch by ¾ of an inch. This switch monitors the door latch position of your microwave and co...
This tray rotates in your microwave ensuring more even temperatures.
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Questions And Answers for PSB9240SF6SS
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Mark
January 7, 2022
Convection mode fails to heat. Got menu message "upper sensor error: May need service". Other cooking modes seem to be ok. What part do i need to order? (upper sensor, which controls the convection temperature)
For model number PSB9240SF6SS
Hi Mark,
Thank you for your question. If your microwave is not heating on the convection mode, there are some parts that you will need to check to see which one is causing the issue. You will need to check the fuse, the door switches, the diode cable, the magnetron, the capacitor, the thermostat and the monitor switch. We have included a link that you may reference on how to check most of these parts. We hope this helps! Good luck with the repair!
Turned out the issue was easily solved by replacing a single, inexpensive fuse.
First off, UNPLUG THE MICROWAVE.
The fuse is located under the plastic grill at the top of the microwave. It's held on by two screws. Once you've removed the screws and taken off the plastic grill, you go to the right side of the microwave and remove another screw that holds a small metal grill in place. Removing the small metal grill is probably the toughest part of this repair. You kind of have to rock it back and forth a bit to get it to release. Once that's off, you can get to the fuse. I removed the burnt out one with a pair of needle nose pliers. I also put a small piece of cardboard under the fuse when I did this so I didn't accidentally drop it into the innards of the microwave. I did the same thing when I replaced the new fuse. I then plugged the appliance back in and made sure it worked. Once that was confirmed, I replaced both grills.
Turned of f the circuit breaker to the microwave. Unscrewed the cover (1 screw!) popped out the old bulbs and plugged in the new ones, using the bubblewrap as a handle to be sure my skin didn't touch the light bulbs so the oil from my hands didn't damage or shorten the life of the new bulbs. Turned the circuit back on. That's it!
Unpluged power cord!! Removed front control panel to expose electronics (need to remove top horizontal vent cover to expose mounting hardware). Unplugged leads to control panel board. Removed magnetron with Tstat (3- phillip heads, need stubby). Installed new parts and control panel, plugged it in tested. Done.