All Installation Instructions for LG Microwave LMHM2017SB

food does not get hot, carousel did not turn, all other indicators worked

Read the troubleshooting section on this site. Figured it was an interlock problem because the food was not getting hot (magentron not turning on) and the carousel was not turning. Did not think both the carousel motor and magnetron failed at same time, thus indicated an interlock problem. The interlock switches are actuated by the door latch. Replaced the assembly locker piece with all three switches (only a $20 dollar part) and microwave was fully operational again. Wife and kids think I am a hero.

Parts Used:

Holder Assembly,Locker

John from SEVERN, MD
Difficulty Level:
Really Easy
Total Repair Time:
30 - 60 mins
Tools:
Screw drivers

3 of 3 people found this instruction helpful.

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Would not heat and made a buzzing or popping sound

Unplug the microwave. Remove the Philips head and safety Torx head screws along the bottom of the sides and rear of the microwave which hold the black cover on. Lift the cover up at the rear and slide it backwards to disengage the tabs on the front top. Remove the cover. Discharge the capacitor by shorting the terminals to each other and then ground. Do this with a well insulated object and be aware there may be a pop when you do this. Keep hands, etc. on the insulated part of the object (screwdriver handle, etc). There's a lot of stored energy in that capacitor. I'd advise first checking the diode to make sure its not bad. Replace it if it is. The Magnatron is held in with a couple of screws on the top and sides. Unplug the connector and remove the screws. Remove the Magnatron. Installation is the reverse of removal.

Parts Used:

Magnetron

Thomas from NEWARK, DE
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers

4 of 7 people found this instruction helpful.

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Door switch was burnt out

Removed outer cover

removed lower door switch

installed new switch

Wa La!

Parts Used:

Micro Switch

Edward from ORCHARD PARK, NY
Difficulty Level:
Really Easy
Total Repair Time:
15 - 30 mins
Tools:
Nutdriver

5 of 10 people found this instruction helpful.

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the turntable ring broke

purchased a new one...thank you

Parts Used:

Turntable Assembly

EDWARD from NORTH EASTON, MA
Difficulty Level:
Very Easy
Total Repair Time:
Less than 15 mins

2 of 2 people found this instruction helpful.

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Micro Wave no heat all else fine. Also at times door would not shut properly.

Replace (after testing w/ohm meter) diode and locker holder. My door often would not close properly. Microwave let know by saying not shut properly. When disassembled found the top screw mount was hollowed out resulting in it moving on occasion when you close door. First remove casing (special safety torx head) needed for rear screws. Onc e removed all parts available to view or work on. Diode is on the capacitor so caution is needed when removing. Serious shock hazard if touched. Use insulated pliers to remove from capacitor and a phillips on the ground. Test with ohm meter Should have resistance on way and non the opposite. Replaced mine bad. Next the holder 2 phillips screws and its yours. Unplug each switch and remove. Take note to what wires go to what switch and what switch mounts where. Mine had 3 switches. Removed from old holder and put in new. Screwed holder back in place and left scrws loose till re wired. Once wired set the holder by lightly tighting the screws. Try the door till it seats properly ensuring that all 3 switches are working properly. If so thighten screws. If all seems to work as advertised, safely plug in and test unit if heats up un plug and put cover back on micro. Your all set. Happy heating.

Parts Used:

HOLDER,LOCKER

Roy from MILLINGTON, TN
Difficulty Level:
Really Easy
Total Repair Time:
1- 2 hours
Tools:
Pliers, Screw drivers

2 of 2 people found this instruction helpful.

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Hard to take out old screws.

Self

Parts Used:

Door Handle

Suresh from RESTON, VA
Difficulty Level:
Really Easy
Total Repair Time:
1- 2 hours
Tools:
Nutdriver, Pliers, Screw drivers

2 of 2 people found this instruction helpful.

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quit working

the repair kit was useless the toggles were to big to go through the top the threads on the bolts interrupted the toggle i had to drill the holes thole to except the toggles I got bolts at the hardware store what a mess
Bob

Parts Used:

Assembly Kit

Bob from OLD TOWN, FL
Difficulty Level:
Really Easy
Total Repair Time:
More than 2 hours

1 person found this instruction helpful.

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Air Filter Replacement

Originally called it "grease filter" until I found very small print "air filter" on damaged original. Part #PS3527528

Slipped into place with ease -- right bottom of microwave

Parts Used:

Microwave Grease Filter

Claude from PARK CITY, UT
Difficulty Level:
Very Easy
Total Repair Time:
Less than 15 mins

1 person found this instruction helpful.

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Replace broken tray

I opened the door and slid the tray into place.

Parts Used:

Microwave Glass Tray

Harvey from COLUMBUS, NJ
Difficulty Level:
Very Easy
Total Repair Time:
Less than 15 mins

1 person found this instruction helpful.

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Broken 14” glass tray

Simply set new tray on microwave rollers and insured glass groves fit on roller .

Parts Used:

Microwave Glass Tray

Paul from WOODBURY, MN
Difficulty Level:
Very Easy
Total Repair Time:
Less than 15 mins

1 person found this instruction helpful.

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broken glass

Just replaced the inner turn table glass tray

Parts Used:

Microwave Glass Tray

Irving from BEDFORD, NH
Difficulty Level:
Very Easy
Total Repair Time:
Less than 15 mins

1 person found this instruction helpful.

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Unit would not heat

Used a Motor cycle Jack to remove both unites combined. Removed side panels exposing internal working parts. Removed nonworking Magnetron and replaced it with new Magnetron. The process was completed in about 1 hour.

Parts Used:

Magnetron

william from LA VERNE, CA
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Socket set, Wrench (Adjustable)

1 person found this instruction helpful.

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Leek

Change gasket

Parts Used:

Microwave Grease Filter

Krzysztof from NEW BRITAIN, CT
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins

1 person found this instruction helpful.

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Microwave would not heat. Convection still worked.

I verified I had 120 volts going into transformer when the microwave was supposed to be running. The capacitor and HV diode both tested good. Be sure to discharge the capacitor before working in this area. This isolated trouble to either the transformer or magnetron. The windings of the transformer measured good. So ordered a magnetron. It was very easy to swap. There were 4 screws and one connector. This fixed our microwave.

Parts Used:

Magnetron