Dan December 31, 2018 for Model Number FGMV175QFA microwave keeps tripping a 20 amp dedicated breaker. Can go for days with no problem, then suddenly happen several times per day. This has been going on for many months. Sometimes after using it, when I close the door, the fan and light turn on. If I open and close the door again, they will turn off. It seems that the door latch is part of the issue. Often I have to open and close the door to "reset" it. Is this likely a door switch issue and if so, which switch? How do I test each switch? Thank you.
1 Answer Dan, It is recommended that all three switches are replaced at the same time. Make sure the switch assembly that houses the switches is not damaged in any way and use caution when replacing the switches to not break any tabs on the holder because they do break easily. Testing these switches is a continuity test between the terminals and you want the reading to change when you open and close the door. The fuse blowing is a sign of a switch problem if the filter board that holds the fuse is not damaged in any way. Read More...
Sonny February 16, 2018 for Model Number FGMV175QFA All functions of the microwave work properly with the exception internal light stay lit and fan runs with all functions cleared? Frigidaire gallery series over the stove mode #fgmv175qfa serial #kg54616671
1 Answer Sonny, With the light staying on and the fan running in the off position then you will want to first check the door switches on the unit. This will be the most likely cause and if the door switches check ok then this will be a control board issue. Read More...
Sean January 14, 2018 for Model Number Frigidaire FFMV164LSA My microwave keeps tripping its dedicated 20A breaker when I open the door while in operation. Is it a switch and which one?
1 Answer Sean, Yes this will most likely be caused by a faulty door switch but you will need to test the door switches to be able to determine which one is faulty. Read More...
Adina January 07, 2018 for Model Number FGMV175QFA Hi, My microwave is starting to work for a few seconds, then it stops. Also, the sound is lower than usual. Help!
1 Answer Hello Adina. You most likely have a "high voltage" side malfunction. Transformer, diode, magnetron, Capacitor. You will need to be extremely careful if you decide to test the components with a multi meter, Very high residual voltage is present, so make sure you remove power to the microwave and short across the terminals on the capacitor. The magnetron should have a reading of less than 1 ohm resistance across the two terminals, and an "open" circuit between each terminal and chassis ground. The diode/rectifier should have a resistance reading in one direction only, no resistance, or resistance in both directions indicate a faulty diode. The primary winding on the trans former should read approximately 450 Ohms resistance, the secondary winding should read 80 ohms resistance, and the filament transformer should read 100 ohms resistance. If all the readings are proper and in range, replace the magnetron. Read More...