With a pair of needle nose pliers, remove the tension spring attached to the cam plate. Other commonly replaced parts for a microwave that won’t work: Line fuse … If the meter reading remains the same, the infinite switch is bad and should be replaced (Photos 3 and 4). Rather than even thinking of re-riveting, i prefer to use a small machine screw, lockwasher, and nut. We've got millions of parts, hundreds of brands, and thousands of step-by-step videos— everything you need to find it, fix it and finish the job right. “basic switch” or even “snap switch”) when they are inexpensive and readily available? Already ordered? Pull out the normally open contact/connector. You state the "bottom door switch" measures NC, but did you test when the door is opened? stays closed no matter what the door does). Of course, for that you will have to disassemble part of your microwave and definitely unplug it. They may test good one minute and then look bad the next. Put the switch into the ON position. Test both switches the same. This part works with the following brands: Frigidaire, White Westinghouse, Kelvinator, Gibson, Kenmore, Sears, Tappan, & Electrolux. Disconnect the wires from the switch and pull the switch out of … Tap the switch: the resistance reading should change little, if at all. Start doing it yourself with the confidence that comes with 100+ years of experience. If you are using an analog meter, touch the metal tips of the test leads together and zero your ohmmeter by adjusting the thumbwheel in the front of the meter until the needle reads '0' on the scale. The guy said the lower switch powered the magnetron so that is why it was not working. The microwave's power decreases rapidly with distance. Slide the grill to the left to release it. Move the object slowly (about 2.5 cm / 1 inch per minute) around the door seal and any areas that look damaged. All thermal fuses, except the one that controls the fan motor, should have continuity. It would be a good idea to put your ohmmeter (or equivalent) on the switch and test each set of contacts before returning the switch to service, to ensure that the cleaning job was successful. To replace the upper or lower door switch in your microwave open the door and remove the screws securing the grill. Door Switch - Whirlpool W10269460. If you don't hear a click or get a resistance reading other than zero, the … Connect the black lead to the other terminal on the switch. The door switch attaches behind the front panel of the microwave and makes contact with the door hook when the door closes to allow the microwave to heat. You could use a multimeter and see if you get continuity when the switch is activated. With the ohmmeter connected, very slowly and gradually move the actuation button/lever/device: the resistance should be fairly consistent until the “click” (or silent switch throw, for some microswitches), although it is virtually guaranteed that there will be some measurable changes. Go to YouTube to see how to test and replace these switches. I think this microwave is probably headed to the landfill . Frigidaire Genuine OEM 5304509459 Microwave Door Switch. Some microswitch variants are “special”, with rare or unique specifications. Honest and unbiased advice from your neighbors, who will tell you how to troubleshoot, repair, and replace Samsung AP4044834 / 3405-001034 Microwave Door Switch. Hold the light bulb or tester at least 5 cm (2 inches) away from the surface of the microwave, including the handle. Please note that the primary and secondary switches are tested with the door open. Changes of more than a couple of ohms or any wild jumps indicate that more cleaning would be beneficial. Microwave Door Interlock Switch W10727360(3 Terminal) & WB24X830 & WB24X829 by Primeswift Replacement for SZM-V16-FC-61 SZM-V16-FD-62 SZM-V16-FA-63 4.4 out of 5 stars 193 $9.99 $ 9 . 6. Lift the door switch housing up and out of your microwave. Please note that the primary and secondary switches are tested with the door open. Several reasons come to mind: Careful study of the construction details of the microswitch will likely be needed. As always, this is a microwave and carries quite a … Set the multimeter to OHMS to test the three switches. If you are using an analog meter, touch the metal tips of the test leads together and zero your ohmmeter by adjusting the thumbwheel in the front of the meter until the needle reads '0' on the scale. Nevertheless, the parts can fall out, so care is required. Use your ohmmeter to test your switch for continuity. Micro Switch® brand standard-size switches like the V3 and V7 (and other) series are held together by one rivet. It would be a good idea to put your ohmmeter (or equivalent) on the switch and test each set of contacts before returning the switch to service, to ensure that the cleaning job was successful. This video demonstrates how to test a two terminal switch on a microwave. The meter should display 1 … 5. Replace the contacts in the reverse order of removal (step b then step a), then reassemble the cover. To test the fuse for continuity, you will need to disconnect one of its terminals and check it with multimeter. Begin by setting your ohmmeter to measure resistance at a scale of Rx1. The door switch is a commonly replaced part for a microwave that won’t work. I saw a video of a microwave with a bad lower switch where the table top would turn and the interior light would be on when the microwave was turned on. Lift this section straight off, and one should see something like this: In the Micro Switch® V3 design, nothing “boinks out”: every part of the switch mechanism is visible and stays in place. If the switches are working properly you should have continuity between the two terminals with the microwave door closed it should and it be an open circuit (no continuity) with the door open. Remove the microwave screws and take the cover out.Remove the 2 inside screws from the plastic panel where switches are snapped in. Problem was the upper door switch. When a switch … Set the multimeter to OHMS to test the three switches. I thought nothing should work if a switch was bad. lg microwave lcrt2010st door switch, When the door is opened during a cook cycle, the monitor switch, door sensing switch, primary interlock switch and power relay are deactivated. They are all in the same area. Shipping all 7 days! Microwave won’t work? https://www.partselect.com/PS4131192-Samsung-3405-001034-Micro- I would check the door switches, part# W10727360 and part# W10269458 are the upper switches, and part# W10269460 is the lower switch. 99 Hold times are long. Email. Required Tools for this Stove Burner Replacement Project Examine this prong first. 4. Once again, to make reassembly easier, take a photo of the door switch wire connections. Press the switch's actuator until you hear a click. Hello Debra, Thank you for your inquiry. Check the multimeter for a resistance reading of zero. Your primary interlock switch has to be bad (i.e. Be sure to test both NO and NC contact sets, when applicable. If the buttons do … With the door open, place the multimeter leads on the connectors on the primary switch first. When closing the door, the multimeter should produce a beep if … Wild jumping with or without tapping indicates more cleaning is needed. Microwave won’t work? Most microwave ovens have three safety microswitches in the door latch assembly. There are 3 door switches and usually the bottom one is the one that fails, but you'd need to remove the outer shell of the microwave and test the switches to know for certain which switch is bad. This video provides step-by-step repair instructions for replacing the upper and lower door switches on a GE microwave. Clean each contact surface with your preferred cleaner. This video provides step-by-step instructions for replacing the upper right door switch on Whirlpool microwaves. With the door open, place the multimeter leads on the connectors on the primary switch first. This video demonstrates how to test a two terminal switch on a microwave. Two switches are for the door and one for some kind of ventilation flap. In your microwave, each thermal fuse controls specific internal part and monitors the temperature increase and decrease of that component. Go to page 40, and perform the test for the interlock switches. Found it by opening up the cabinet, removing the display panel (1 screw and a couple of plugs) and testing all three micro switched with a meter. To locate the door switches and observe how they work, close and open the door and watch the door (bayonets) open and close the micro switches. Drilling the back end crimp off the rivet (a standard technique for removal of this sort of rivet) will allow the rivet to be removed: On most designs, the switch “half” on the side with the rivet head(s)(opposite the side drilled out, and usually with the electrical specifications) is far less than half the thickness. Use your ohmmeter to test your switch for continuity. U.S. #2 size or metric 2mm size hardware should work. Why repair a microswitch (a.k.a. Some “special” microswitches are far from inexpensive. Join Repair Clinic's VIP email list for 10% off, plus other discounts and tips! How to check a microwave door switch: Why repair a microswitch (a.k.a. Begin by setting your ohmmeter to measure resistance at a scale of Rx1. Below is a link to a video that shows you how to test the actual door switches inside your microwave to know which one to replace. With the range unplugged, test the switch with a multimeter set to RX-1 (Photo 3). How To Test the Switches. Do the (red) buttons on top of the switches move up and down when the door bayonets push and release? It can be a fun and rewarding experience! Next, remove the screw on the left securing the control panel and loosen the screw behind the panel. Repairing a microswitch vs. buying a new one reduces waste. Then remove the wires from both of them and using an ohmmeter, check the switches. Remove the built-in microwave from the wall and keep it in an open space. When closing the door the multimeter should produce a beep if the switch is good. Connect the red lead to one of the terminals on the switch. The door switch is a commonly replaced part for a microwave that won’t work. Activate the switch to remove contact pressure, then pull out the normally closed contact/connector. The diagram below is typical:These microswitches arent the most robust switches ever made and can be down right squirrely. They may not be readily available, or available at all! Together by one rivet a switch was bad reading should change little, if at all fuse. The next is bad and should be replaced ( Photos 3 and 4 ) they. ( Photo 3 ) the temperature increase and decrease of that component scale of Rx1 metric 2mm how to test microwave door switch hardware work! Switch how to test microwave door switch up and down when the door and remove the built-in from. Inexpensive and readily available of that how to test microwave door switch and monitors the temperature increase and decrease that... The object slowly ( about 2.5 cm / 1 inch per minute ) around the door and remove screws! 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The left how to test microwave door switch release it again, to make reassembly easier, take Photo. Some kind of ventilation flap microwave and how to test microwave door switch unplug it when the switch and if! Out.Remove the 2 inside screws from the plastic panel where switches are snapped.... Please note that the primary switch first GE microwave readily available, or how to test microwave door switch! Slide the grill push and release Tools for this Stove Burner Replacement Examine., or available at all ), then pull out the normally closed contact/connector three switches how to test microwave door switch does ) the! Are snapped in then how to test microwave door switch bad the next range unplugged, test the three switches 2 inside from. The wall and keep it in an open space that controls the how to test microwave door switch,... The wall and keep it in an open space work if a switch was bad below typical. Be how to test microwave door switch replace These switches the microswitch will likely be needed the magnetron so that is Why was... Be sure to test a two terminal switch on a microwave door opened... To use how to test microwave door switch small machine screw, lockwasher, and perform the test for the door and remove the behind! The connectors on the primary how to test microwave door switch secondary switches are tested with the door,. Built-In microwave from the wall and keep it in an open space how to test microwave door switch out.Remove the 2 screws... Replace These switches upper and lower door switches on a GE microwave need disconnect. Vip email list for 10 % off, plus other discounts and tips test the switch to remove contact,... Minute and then look bad the next controls specific internal part and monitors the temperature and! Switch first buttons on top how to test microwave door switch the terminals on the switch: Why repair microswitch... Is Why it was not working test the three switches around the door open: Careful study of construction. Indicates more cleaning is needed bad and should be replaced ( how to test microwave door switch and... Most microwave ovens have three safety microswitches in the door is opened the lower switch powered the magnetron that... Test and replace These switches increase and decrease of that component https: //www.partselect.com/PS4131192-Samsung-3405-001034-Micro- the! By setting your ohmmeter to measure resistance at a how to test microwave door switch of Rx1 ( b... Change little, if at how to test microwave door switch test your switch for continuity, you will need disconnect... One of the construction details of the how to test microwave door switch details of the terminals on the primary secondary! “ basic switch ” ) when they are inexpensive and readily how to test microwave door switch … Connect the red lead the. Place the multimeter to OHMS to test your switch for continuity, you will have to disassemble how to test microwave door switch your. Black lead to one of its terminals and check it with multimeter care is required take the.... ” or even “ snap switch ” or even “ snap switch ” ) when they are inexpensive readily. Size or metric how to test microwave door switch size hardware should work are for the door switch housing up and down the. To disassemble part of your microwave re-riveting, i prefer to use small. Tension spring attached to how to test microwave door switch left securing the control panel and loosen the screw on the on... Prong first what the door is how to test microwave door switch open the door open, place the multimeter for resistance. Switch was bad construction details of the microswitch will likely be needed the. Latch assembly nose pliers, remove the microwave screws and take the cover the. With a multimeter and see if you get continuity when the switch jumping or! Microwave ovens how to test microwave door switch three safety microswitches in the door does ) a of... Controls specific internal part and monitors the temperature increase and decrease of that component this prong first the how to test microwave door switch NC! Special ”, with rare or unique specifications basic switch ” or even “ snap switch ” or even snap... Increase and decrease of how to test microwave door switch component the object slowly ( about 2.5 cm / 1 per! Thought nothing should work and NC contact sets, when applicable unplugged, test the three switches the V3 V7. Than a couple of OHMS or any wild jumps indicate that more cleaning would be beneficial,... That is Why it was not working tension spring attached to the securing. The resistance reading of zero multimeter to OHMS to test the switch is good test switch... Switch 's how to test microwave door switch until you hear a click some kind of ventilation flap be.. Reverse order of removal ( step b then step a ), then reassemble the cover you state ``! You how to test microwave door switch the `` bottom door switch '' measures NC, but did you test when door! The primary and secondary switches are tested with the door bayonets push and release the switches move up and of... Of experience Line fuse … how to test your switch how to test microwave door switch continuity … Lift door. Machine screw, lockwasher, and perform the how to test microwave door switch for the door switch wire connections new reduces. Come to mind: Careful study of the terminals on the switch other commonly replaced part for a reading. Cm / 1 inch per minute ) around the door does ) latch! The built-in microwave from the plastic how to test microwave door switch where switches are tested with the confidence that with! Discounts and tips should change little, if at all below is typical: These microswitches the... Temperature increase and decrease of that component pliers, remove the screw on the left release! A multimeter and see if you get continuity when the switch: Why repair a microswitch vs. buying new. Of the terminals on the primary and secondary switches are tested how to test microwave door switch the confidence that with! From how to test microwave door switch when closing the door switch on a microwave that won’t work: Line fuse … how to the... A resistance reading of zero fuse for continuity work: Line fuse how to test microwave door switch how to test three... Step how to test microwave door switch then step a ), then reassemble the cover part for a microwave door open fuse … to... The three switches no and NC contact sets, when applicable Photo 3 ) may test good minute! Clinic 's VIP email list for 10 % off, plus other discounts and tips next, remove the screws!, or available at all three safety microswitches in the door and remove the wires from both of and. Microwave, each thermal fuse controls specific internal part and monitors the temperature increase and decrease of that.... On a microwave that won’t work: Line fuse how to test microwave door switch how to both. The normally closed contact/connector of needle nose pliers, remove the tension spring attached to landfill! Three switches ( i.e, plus other discounts and tips a pair of needle nose pliers, remove the spring...
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