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Door Interlock Switch Kit

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3 Reviews

Get this part fast! Average delivery time for in-stock parts via standard shipping: 1.8 days.

PartSelect Number PS373050
Manufacturer Part Number 4392027
Manufactured by Whirlpool
Product Description

Door Interlock Switch Kit Specifications

This part is a genuine manufacturer door interlock switch kit, also known as primary micro switch or microwave switch kit, for a microwave. The function of this part is to sense when the door of the microwave is open or closed. If the part is defective, the microwave will not start or will start when door is open. This kit contains two 15 Amp, 125/250 Volt switches with 3/16 inch terminals. Be sure to disconnect power to microwave before replacing part. Use extreme caution when replacing microwave parts, as high-voltage capacitors can retain an electrical charge when unplugged. NOTE: This kit includes 2 single pole, double throw (SPDT) micro switches. As per the manufacture for the secondary interlock switch order part # 56001100.
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Troubleshooting
This part fixes the following symptoms:
Won’t turn on | Doesn’t shut off
This part works with the following products:
Microwave, Wall Oven, Microwave Oven Combo.
This part works with the following products:
Whirlpool, Amana, KitchenAid, Maytag.
Part# 4392027 replaces these:
AP3109474, 3459, 14200951, 4158065, 4158102, 4158153, 4158195, 4158196, 4158486, 4158590, 4158600, 4158624, 4158625, 4158650, 4158769, 4158771, 4158773, 4158793, 4158838, 4158841 ... Show more , 4158940, 4158941, 4158948, 4158952, 4164074, 4164500, 4164501, 4164502, 4166904, 4174641, 4174644, 4174645, 4174665, 4174666, 4174900, 4312822, 4312823, 4312948, 4313055, 4313186, 4313610, 4313611, 4338849, 4339294, 4358004, 4358267, 4358268, 4358269, 4365522, 4392004, 4392027, 53001018, 53001019, 53001123, 54001080, 815115, 815117, 815120, 8183561, 8183562, 8184285, 8184286, R0131108, R0131267, R0654094, R0654095, R0654096, R0654175, R0713539, R0802520, R0802527, R0813140, R9800417, R9800690 Show less
Questions and Answers

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Mike
March 7, 2018
Hi, microwave appears to program correctly and add a minute adds a minute, however, light comes on, timer starts counting down as if its working but it does not cook. I had this issue a few years back and paid kitchen aid 300 to come out and fix it. Wondering if it may be something i can replace myself now...all the tech said was that is was some "module" and it took longer to take the cover off than it did to swap modules. thank you in advance
For model number KCMS1555SSS2
Hello Mike, thank you for your question. The module your referring to is probably the electronic control module part number WPW10169272. The issue might be that, but it could also be the door switches,diode, fuse or magentron. The door switches are very easy to test with a multi meter. I have included a link that will take you to lots of great information on the parts that could cause this same issue. If you think the module is the issue, that part is WPW10169272. You can enter that part number into our site to find the price and availability. I hope this helps! https://www.partselect.com/Repair/Microwave/No-Heat/

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Tim
November 11, 2017
The problem with my Maytag over the range microwave oven is that with the door shut, the fan (or some sort of motor) appears to run, but not the microwave itself. Will replacing the existing door switches with the door interlock switch kit fix that problem?
For model number MMV1153AA
Hello Tim, Thanks for the question. We show that the switches should be tested with a multimeter, and replaced if they show no continuity. Please keep in mind that these parts should only be installed by a technician, as the microwave can still carry a charge even after being unplugged. I hope this helps.

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Fred
April 3, 2019
This an Amana electric microwave. The door seems slightly misaligned after 19 years. The microwave usually does not turn on without a slight tug or lift of the door. It may stop before the timer completes. Twice it has stayed on when opening the door. Do these problems indicate a new microwave is order? If the problem is likely just a door switch or capacitor, how do i know which part to order? Is electrical shock likely when replacing these items?
For model number ACO1860AS
Hello Fred, thank you for inquiring. You will want to replace the Door Interlock Switch Kit part PS373050. Be sure to disconnect power to the microwave before replacing this part. Use extreme caution when replacing microwave parts, as high-voltage capacitors can retain an electrical charge when unplugged. We hope this helps.

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Bill
February 12, 2019
How does switch 373050 fit into my microwave
For model number JMC 8130DDS
Hi Bill, Thank you for your question. Before you begin any repair please unplug the appliance from the electrical outlet. Use a Phillips head screw driver to unthread the screws securing the grill. With the screws removed, open the microwave oven door then the slide the grill to the left and lift it up to remove. Next remove the control panel mounting screw then lift the control panel up to detach. Then remove the screw holding the inner access panel and then release the panel from the retaining clips. Now remove the screws holding the switch assembly. Depress the release tab and the actuator to detach the switch you are replacing. Disconnect the wire connector to fully release the old switch. Install the new door switch by first connecting the wire connector. Now position the new switch in the assembly snap it into place. Realign the switch assembly on the frame and secure it with the screws. Reinstall the inner access panel securing it with the screw. Now insert the control panel tabs to the slots in the frame and push the panel down. Secure it with the mounting screw. Insert the tabs of the grill into the frame and slide it to the right. Shut the oven door and then secure the grill with the screws. Plug the power cord back in and the microwave should now work. I hope this helps. Thank you and have a great day!

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Sheldon
March 19, 2019
I have a issue with my microwave you close the door and turn it on lights and timer start but but it does not heat or the glass tray doesn't turn. The vent will work but i am not sure what to do is it a simple fix or do i have to replace it thanks for your help. Can't pop microwave popcorn or anything lights work vent works please help so confused.
For model number UMV1152BAW
Hello Sheldon, thank you for your question. The most likely issue is a bad door switch or switches. We would recommend testing them to determine which one(s) are faulty. Here is a link that will give instructions on how to test those switches. https://www.partselect.com/Microwave+test-door-switch+repair.htm. I hope this helps!

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Jerry
September 29, 2017
Power to unit - everything works -lights exhaust fan clock, night light. Microwave does not come on.
For model number MH6110XEB-1
Hello Jerry, Thank you for contacting us. You would need to check the door switches with a multi-meter and replace the one that does not have continuity. I hope this helps!

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Bob
August 12, 2019
One of the pivot pins broke on my latch bracket, so i glued it back on and it worked fine. Then, after a while, i found it would only work if i applied gentle pressure on the on switch, and finally, the pin broke off again. So i bought a new latch bracket, and found that i still need to apply gentle pressure to the on switch to make it work. I checked inside, and it seems the latch bracket is making proper contact with the red micro switch on this part when you close the door.
For model number mt4155spq-5
Hello Bob, thank you for writing. It sounds as though the Door Interlock Switches may be faulty. This part number PS373050 is the correct replacement for your model. You may also want to consider the Door Latch part number PS11745097 for your model to fix this. I hope this helps and good luck with your repair!

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Jeff
August 29, 2019
The microwave powers up the rotation of the plate does not work. No heat fan powers up. I checked the door and the spring tension appears okay. Any guesses i what i may need?Thank you, ps. it stopped while running
For model number AMV1162AAB
Hi Jeff, thank you for your question. You will want to test your door switches to see if they are working correctly. You can do that with a multi meter. They should be ready 0 ohms. I hope that helps. Good luck with your repair.

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David
September 12, 2019
How do I access switches behind cover?
For model number GT4175SPB2
Hi David, Thank you for your question. Here is some information you may reference on how to access the switches in your microwave. Before you begin any repair please unplug the appliance from the electrical outlet. Use a Phillips head screw driver to unthread the screws securing the grill. With the screws removed, open the microwave oven door then the slide the grill to the left and lift it up to remove. Next remove the control panel mounting screw then lift the control panel up to detach. Then remove the screw holding the inner access panel and then release the panel from the retaining clips. Now remove the screws holding the switch assembly. Depress the release tab and the actuator to detach the switch you are replacing. Disconnect the wire connector to fully release the old switch. Install the new door switch by first connecting the wire connector. Now position the new switch in the assembly snap it into place. Realign the switch assembly on the frame and secure it with the screws. Reinstall the inner access panel securing it with the screw. Now insert the control panel tabs to the slots in the frame and push the panel down. Secure it with the mounting screw. Insert the tabs of the grill into the frame and slide it to the right. Shut the oven door and then secure the grill with the screws. Plug the power cord back in and the microwave should now work. I hope this helps. Thank you and have a great day!

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Zehner
October 31, 2019
Control panel lights up, all buttons respond except the start button. When programmed the timer winds down but the cooking doesn't begin. Turntable also doesn't resond either.
For model number maytag microwave mmv4184aaw
Hello Zehner, thank you for your question. The first parts we would recommend testing or replacing are the door switches. If those parts are fine, and are tested and are working properly, the issue could be the main control panel. I hope this helps!

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Customer Repair Stories
 Average Repair Rating: 3.3 / 5.0, 6 reviews. What's this?
    Sort by:
    Sorry, we couldn't find any existing installation instruction that matched.
    Microwave worked intermittently depending on how door was closed
    Remove top grille (2 screws), undo control panel (1 screw). Tilt down control panel, switches are on the left. There are actually three switches that are involved with the door, two horizontally mounted, one vertically mounted. This would be an EASY REPAIR, but it took me a while to figure out which of the three switches was bad, and also took a while to figure out that there is a plastic rod that inserts through the hole in the switch body. Once i figured this out went like a breeze. Lower horizontal switch was the bad one, but since the kit came with two switches i went ahead and replaced the upper horizontal one as well. IT appears that the horizontal switches are probably more likely to fail than the vertical switch based on the position of the switch and force angles. Works great now!
    • Robert from Bainbridge Island, WA
    • Difficulty Level:
      A Bit Difficult
    • Total Repair Time:
      30 - 60 mins
    • Tools:
      Pliers, Screw drivers
    66 of 80 people found this instruction helpful.
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    Close the door on the microwave, punch in the # nothing happened
    I removed the unit from the wall. Took the cover off. Set the unit on its side. It revealed the working parts. Removed the old micro switches. Put in the new oness. Presto, it worked. Very easy for me.
    The parts was delivered almost before my notice they were shipped.
    • Robert S. from Stafford, TX
    • Difficulty Level:
      Really Easy
    • Total Repair Time:
      15 - 30 mins
    • Tools:
      Screw drivers
    14 of 21 people found this instruction helpful.
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    Needed to push door up to run appliance.
    1. Removed cabinet screws (10-15?). 2. Removed cabinet. 3. Removed top interlock switch which actually was not defective. The press clip connection appeared as if it had been arcing for quite some time and the corrosion created resistance sufficient to prevent the current from getting through the switch. 4. Replaced switch anyway but broke plastic retaining clip despite every effort not to do so. Reset broken clip with super glue. 5. Reassembled cabinet and appliance is in good working condition.
    • J Patrick from Baltimore, MD
    • Difficulty Level:
      Easy
    • Total Repair Time:
      Less than 15 mins
    • Tools:
      Pliers, Screw drivers
    14 of 27 people found this instruction helpful.
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    Fan motor and magnetron did not come on, but every thing else did.
    Problem would come and go. Found service schematic inside unit. Perform all the suggested tests. One possible solution was the primary interlock switch shown on the schematic and a check found the switch stuck. It would free up some times but would stick again in the open position. Ordered switch which was a simple plug in unit.
    • Dale from Chester, CA
    • Difficulty Level:
      A Bit Difficult
    • Total Repair Time:
      1- 2 hours
    • Tools:
      Screw drivers
    10 of 15 people found this instruction helpful.
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    Microwave losing heating items
    Took microwave out of builtin cabinet with 4 screws.
    Put microwave on center island and removed cover.
    Tested interlock switch with volt meter and it appeared ok so I put my kit back in box and sent back.
    Took out magnetron unit and replace with new part.
    Put cover back on and test.
    All is working and installed back in cabinet. Two weeks later all still working great.
    Other Parts Used:
    MAGNETRON
    • John from PEORIA, AZ
    • Difficulty Level:
      Easy
    • Total Repair Time:
      30 - 60 mins
    • Tools:
      Pliers, Screw drivers
    1 person found this instruction helpful.
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    Would not start
    Watched a you tube video prior to installing new switch. Followed the video which gave me confidence i was up to the task. After removing the touch pad I found my design was not exactly like the you tube model but I found the defective switch, replaced it and put the microwave back together. Works great. Again watch the videos
    • LENNARD from BURNSVILLE, MN
    • Difficulty Level:
      Easy
    • Total Repair Time:
      30 - 60 mins
    • Tools:
      Pliers, Screw drivers
    1 of 2 people found this instruction helpful.
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          PartSelect Number: PS373050
          Manufacturer Part Number: 4392027
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