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MQ1724ASDL LG Microwave - Overview

Diagrams for MQ1724ASDL

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Micro Switch – Part Number: 6600W1K001D
$21.45
In Stock
Micro Switch
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(27)
Part #6600W1K001D
The door switch, often referred to as a primary interlock switch, provides power to the various components in the microwave when the door is in a closed position, and interrupts power when the door is open. This door switch is approximately 1 1/2 inches long, and has 2 metal prongs called terminals that extend from its body. Common symptoms related to a faulty primary door switch include: microwave will not turn/shut off, or the microwave will not heat properly. You can check the switch for continuity using a multi-meter. With the actuator button depressed, you should see continuity between these terminals. If there is no continuity the switch will need to be replaced. NOTE: Before you begin this repair, first make sure your microwave is unplugged, and that your capacitor is discharged. A capacitor stores large amounts of electricity even when your microwave is unplugged.
Air Duct Bracket – Part Number: 4810W1A151A
$17.15
In Stock
Air Duct Bracket
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★★★★★
(2)
Part #4810W1A151A
This bracket holds the metal or plastic flapper that closes off the exhaust duct when the fan is not running and opens when the fan turns on. If the exhaust fan on your microwave does not appear to be working, the problem may be with the damper assembly. If the damper does not open and close easily, check for any damage to the bracket, and replace if it is damaged or faulty. This genuine OEM exhaust damper measures approximately 12 inches long by 5 inches wide.
Mounting Plate – Part Number: 3300W0A045A
$29.47
In Stock
Mounting Plate
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(5)
Part #3300W0A045A
This mounting plate is a manufacturer-approved replacement part for your microwave. The mounting plate, or bracket, secures your above-range microwave in place against the wall. To conduct this repair, make sure to first disconnect the power source, and wear protective gloves.
Turntable Assembly – Part Number: 5889W2A012F
$27.36
In Stock
Turntable Assembly
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(6)
Part #5889W2A012F
This turntable assembly, also known as a rotating ring, is a genuine OEM replacement part for your microwave. It is brown in color and about 10 inches in diameter. This part supports the glass turntable and keeps it in place. Replacing this part is very easy and requires no tools. Simply remove the glass tray, pop out the existing ring and replace with the new one.
Glass Cooking Tray – Part Number: 3390W1A019A
$49.50
In Stock
Glass Cooking Tray
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(3)
Part #3390W1A019A
This tray rotates in your microwave ensuring more even temperatures.
Hardware Mounting Kit – Part Number: 3861W1A043C
$43.18
In Stock
GRILLE,VENT (Black) – Part Number: MDX61171703
$64.69
In Stock
GRILLE,VENT (Black)
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(4)
Part #MDX61171703
This black microwave vent grille is designed to maintain proper airflow within your appliance, preventing overheating and ensuring efficient performance. Made from durable, heat-resistant materials, it also enhances the microwave’s exterior appearance. Replacing a worn or damaged grille helps protect internal components and maintain optimal ventilation. Installation is simple and requires unplugging the microwave and wearing protective gloves for safety.
Capacitor – Part Number: 0CZZW1H004B
$43.18
On Order
Capacitor
Part #0CZZW1H004B
Store the electrical energy needed by a microwaves high-voltage heating system with this replacement capacitor. During cooking, the capacitor works with the transformer, diode, and magnetron to help create the energy that heats food. A faulty capacitor may be linked to no heat, loud buzzing, or a fuse that blows when cooking begins. However, these signs can also come from other high-voltage components, so proper testing is important. Microwave capacitors may hold a deadly electrical charge even after the power cord is unplugged. For this reason, testing and installation must be completed by a qualified appliance service technician.

Common Symptoms of the MQ1724ASDL

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Broken door micro switch. (unit does not start heating)
37 of 68 people found this instruction helpful.
  • JAMES from BILLINGS, MT
  • Very Easy
  • 30 - 60 mins
  • Screw drivers
Unplug the unit before servicing. Need phillips screwdriver. Open door. Use step ladder to access and remove 2 small screws from top of the room air diffuser at top of unit. Slide diffuser slightly to the left to align the diffuser's plastic tab on the left side to rotate toward you. (The wires for the front control panel are at the far l eft side of this difuser, but difuser is slotted for easy removal). Once the difuser is removed you will see 1 screw at the top that secures the pannel cover on the left side of the unit. Remove screw and slide this panel slightly up and out. This exposes the plastic frame that holds the upper and lower door switches. 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. Do the (red) buttons on top of the switches move up and down when the door bayonets push and release? If the buttons do not "pop" up when opened the switch is defective. The switch frame is secured with 2 screws. Remove screws and rotate the unit out for easy access to the micro switch(s). The internal (spring?) on my unit that is suposed to allow the red (visible) button on top of the switch to "pop" up when the door is opened was broken. Carefully pry the switch outward while being careful to lift the plastic holder-piece that holds the switch in place. Be careful, there is a small pin on the frame, so rotate the switch OUT toward you while lifting (carefully) the plastic holder-piece (you will see it on top of the switch). You can use an ohm meter to test the continuity of the switches. But if the buttons don't "pop" they are defective. Replace switch and reassemble.
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Door sensor switch went bad. Microwave would not operate.
15 of 29 people found this instruction helpful.
  • Randall from ARCADIA, CA
  • A Bit Difficult
  • 1- 2 hours
  • Pliers, Screw drivers
Watched a couple of repair videos on Youtube by searching for the model number. Found out what to do in order not to get shocked by the powerful capacitor.
Ordered the two switches (To be sure, I could have ordered a third switch as suggested in the videos.)
Bought a tamper-proof star bit to get the cover off. Followed the dir ections to replace the switches. - I broke the harness and had to use some super glue, but it's all good. I should have removed the harness instead of trying to get a switch out while it was still in place.
It's all back together, and the wife is happy!!
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everything worked except it wouldnt cook
11 of 21 people found this instruction helpful.
  • Joseph from N VERSAILLES, PA
  • Very Easy
  • 30 - 60 mins
  • Screw drivers
tested all 3 of the door switche for continuity, the top switch was faulty, replaced it,for approx $4.00 and saved a $350 dollar microwave.
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