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979520-4-S-Frigidaire-5304440026        -Relay Switch
979520-4-S-Frigidaire-5304440026        -Relay Switch 979520-1-S-Frigidaire-5304440026        -Relay Switch 979520-2-S-Frigidaire-5304440026        -Relay Switch https://www.partselect.com/Schematics/Frigidaire/IVP5734N.gif

Relay Switch

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PartSelect Number PS979520
Manufacturer Part Number 5304440026
Manufactured by Frigidaire

The relay switch may also be known as the door micro switch and is a part for your microwave. The function of this part is to monitor the door latch and communicate whether the door latch is open or closed to the electronic control board. Before making this repair, you will want to make sure to unplug your microwave and discharge the capacitor. Your microwave capacitor is able to store electricity in large quantities even after it has been unplugged. The most common reason for replacing your relay switch is if the microwave will not turn on but your timer still runs..

This part works with the following brands: Frigidaire, Electrolux, Tappan, Kenmore.

This part works with the following products: Microwave, Microwave Oven Combo, Range.

This part fixes the following symptoms:

  • Won’t turn on.
  • No heat.

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Installation Instructions Provided by PartSelect customers like you.

Average Repair Rating: 3.8 / 5.0, 5 reviews What's this?
1-5 of 5
 

75 of 114 people found this instruction helpful

Parts Used:
  • Relay Switch
Level of Difficulty: Easy
Time to do repair: 30 - 60 mins
Tools: Screw drivers
Customer: Tim from Chicago, IL

Timer would run but the microwave won't start

I first removed the top plate above the microwave door (3 screws), then I removed the plate containing the buttons and clock. The microwave has 3 relay switches and they are in a little holder. The holder was too difficult to remove so I just removed the bottom switch and replaced. The microwave started right up.

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31 of 46 people found this instruction helpful

Parts Used:
  • Relay Switch
Level of Difficulty: Easy
Time to do repair: Less than 15 mins
Tools: Pliers, Screw drivers
Customer: Steve from Moorhead, MN

Microwave wouldn't turn on but timer worked.

was told buy a repair person to check the door micro switches as it was a common problem. removed the top plastic air grill to get access to the screw that holds in place the control cover. After unplugging the unit, i took out the (2) screws that held in the switches and removed them (3). One switch was a bit melted so i tested it with a 12 volt battery and it was bad. Ordered a new one from Part select and got it fast . Works great .

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28 of 42 people found this instruction helpful

Parts Used:
  • Relay Switch
Level of Difficulty: Easy
Time to do repair: 15 - 30 mins
Tools: Pliers, Screw drivers
Customer: Betty from Kimball, TN

Microwave would count down but not run

After unplugging the unit remove the control face buy removing the screws. All three door switchs are on a bracket on the left. Remove the two screws holding the bracket in place and pull out. Disconnect the wires from the three switches and test each switch indivually to determine the bad one. I used a multimeter set on ohms.Replace the bad switch with the new one and replace all the wires. Reassemble the unit and you are good to go.

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22 of 34 people found this instruction helpful

Parts Used:
  • Relay Switch
Level of Difficulty: Really Easy
Time to do repair: 30 - 60 mins
Tools: Pliers, Screw drivers
Customer: Danny from Yanceyville, NC

Timer & light on but no operation

It is a undercabinet stovetop microwave. First had to take it down and unplug. Remove the top cover locate the door switch. Used neednose pliers to remove switch. Unplug two terminals.Plug new switch and use pliers to replace back @ same position.Plug in socket temporarily to see if it works.Afterwards if it works.Unplug and replace cover.Ready to be replaced back under cabinet.

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24 of 60 people found this instruction helpful

Parts Used:
Level of Difficulty: Easy
Time to do repair: 15 - 30 mins
Tools: Screw drivers
Customer: EFRAIN from BROOKLYN, NY

Microwave suddenly turned off and turntable would run with open door

replaced switch and capacitor also checked thermal fuse to make sure it was not defective

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1-5 of 5

Model Cross Reference

This part works with the following models:

PartSelect Number: PS979520
Manufacturer Part Number: 5304440026
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