- Model Number
- MW8991SB
- Brand
- Age
- More than 10 years
Hi,
Have what I hope is an easy question. Am troubleshooting my Emerson microwave (light comes on, timer counts down, but no fan/noise, doesn't heat). As near as I can tell it's a door switch problem, seems fairly common.
Accessed my door switches (3 of them, part #5E4 10T105, KW3A) and tried continuity test w/ multimeter. All seem to be the exact same part, but with 2 of them, get no continuity signal unless I press down on the activator button (which is expected if i'm understanding how it works correctly...switch in normally closed mode, button gets pressed by door latch, allowing switch to open and power to flow).
But on the 3rd switch, I get the continuity tone on the meter before I press down on the switch, and no continuity when I do press on the switch. Is this my bad switch? Not sure why this behavior would be opposite of the other 2 where it appears to be the exact same switch. I know one of these switches gets installed upside down relative to the other two, but assuming the functioning of the switch should be the same no matter. Was expecting no continuity either way if the switch was bad.
Thanks in advance for the help.
Have what I hope is an easy question. Am troubleshooting my Emerson microwave (light comes on, timer counts down, but no fan/noise, doesn't heat). As near as I can tell it's a door switch problem, seems fairly common.
Accessed my door switches (3 of them, part #5E4 10T105, KW3A) and tried continuity test w/ multimeter. All seem to be the exact same part, but with 2 of them, get no continuity signal unless I press down on the activator button (which is expected if i'm understanding how it works correctly...switch in normally closed mode, button gets pressed by door latch, allowing switch to open and power to flow).
But on the 3rd switch, I get the continuity tone on the meter before I press down on the switch, and no continuity when I do press on the switch. Is this my bad switch? Not sure why this behavior would be opposite of the other 2 where it appears to be the exact same switch. I know one of these switches gets installed upside down relative to the other two, but assuming the functioning of the switch should be the same no matter. Was expecting no continuity either way if the switch was bad.
Thanks in advance for the help.