LG LMV1650ST-01 microwave Parts

For your LG LMV1650ST-01 microwave/hood combo, “size” usually means two things: the outside dimensions (so it fits your cabinet space) and the inside capacity (so your dishes fit). We recommend measuring both so you can match the right replacement unit or accessories.

Measure the outside (fit in the cabinet)

Use a tape measure and record these in inches:

• Width: measure the front face from left edge to right edge
• Height: bottom of the microwave to the top of the case
• Depth: front face to the back (exclude the cord); note if the door handle sticks out
• Clearance: measure space above and on the sides so the unit can vent properly

Quick fit guide (typical for over-the-range units)

What you’re checking	What it tells you	Typical range
Outside width	Cabinet fit (most important)	24 to 30 inches
Outside depth	How far it projects	15 to 18 inches
Outside height	Space between cabinet and cooktop	16 to 18 inches

Measure the inside (what you can cook)

Interior capacity is measured in cubic feet. If you do not have the listed capacity, you can estimate it:

• Measure interior width, height, depth (in inches)
• Multiply them together
• Divide by 1728 to convert cubic inches to cubic feet

Why it matters

Getting the size right prevents installation problems (cabinet fit, vent alignment, mounting points) and everyday usability issues (turntable clearance, tall mugs, casserole dishes). It also helps you choose compatible replacement parts and accessories.

Related parts that affect “fit” and ventilation

If you are checking size because of venting or mounting concerns, these model-matched parts can matter:

• Microwave mounting plate 3300W0A030A (mounting alignment)
• Microwave vent damper door 4900W1A001B (airflow direction and backdraft control)
• Microwave grease filter 5230W1A012E (grease capture for the hood fan)
• LG microwave charcoal filter 5230W1A003A (odor control for recirculating setups)

Last updated: February 2026

The LG LMV1650ST-01 is a 1.6 cu. ft. over-the-range microwave/hood combo typically rated around 1000 cooking watts with a 10 power level cooking system and a vent fan commonly in the 300 CFM range. For exact ratings and feature set, match by model number when ordering parts.

Core specs customers usually mean

These are the most-requested specifications for the LMV1650ST-01:

• Capacity: 1.6 cu. ft.
• Cooking power: about 1000 W (cooking watts)
• Power levels: typically 10
• Vent fan airflow: commonly around 300 CFM
• Finish: stainless steel (model suffix dependent)

Feature checklist (common on this model class)

Over-the-range LG microwaves in this size class commonly include:

• Auto/rapid defrost options
• Child lock / control lock
• Energy saver mode
• Sensor cooking (uses a humidity sensor on some versions)
• Multi-speed hood fan and cooktop light

Spec area	What to look for	Where it matters
Cooking watts	900 to 1100 W typical	Heating speed and performance
Venting	Recirculating vs. ducted	Filter type and installation setup
Filters	Grease filter plus optional charcoal filter	Odor control and airflow
Electrical	120V household circuit typical	Fuse and interlock safety

Why it matters

Specs drive parts compatibility. For example, whether your unit is set up for recirculating ventilation affects which filters you need, and electrical specs tie directly to safety parts like the fuse and door interlock switches.

Parts that relate to “specs” and performance

If you are checking specs because performance is off, these model-matched parts are commonly involved:

• Heating circuit: microwave high-voltage diode 6021W3B001V, microwave high-voltage capacitor 0CZZW1H004B
• No power or dead display: microwave fuse 3B74133Q
• Door won’t start or stops when closing: microwave door interlock switch 6600W1K001R or microwave door interlock switch 6600W1K001Q
• Venting and odors: microwave grease filter 5230W1A012E, LG microwave charcoal filter 5230W1A003A

If you are asking because it is not heating

Use our troubleshooting steps in why is my microwave not heating to narrow it down before replacing parts.

Last updated: February 2026

Yes. For an LG LMV1650ST-01 microwave/hood combo, the most reliable “reset” is a power reset: unplug the microwave (or switch off the breaker) for about 1 minute, then restore power and re-set the clock. This clears many control glitches without replacing parts.

Quick reset options (from easiest to most complete)

• Power reset: Unplug for 60 seconds, plug back in.
• Breaker reset: Turn the microwave circuit breaker off, wait 60 seconds, turn it back on.
• Control lock check: If the keypad seems unresponsive, make sure the control lock is not enabled (many models use a 3-second press on a key such as Stop/Clear).
• Clock re-entry: After power returns, set the clock; some functions will not run until the time is set.

If “resetting” does not fix the problem

A reset helps when the display is frozen, buttons lag, or the unit acts erratically. If the microwave is dead, blows the breaker, or runs but does not heat, a failed electrical part is more likely.

Common parts involved on LMV1650ST-01 include:

• Microwave fuse 3B74133Q (no display, completely dead)
• Microwave door interlock switch 6600W1K001R (won’t start, stops when door moves)
• Microwave high-voltage diode 6021W3B001V (runs but no heat)
• Microwave high-voltage capacitor 0CZZW1H004B (runs but no heat, humming)

What to check first (safe, no disassembly)

• Confirm the outlet has power (test with a lamp).
• Try a different cook setting and time.
• Listen for the fan and turntable; note any unusual buzzing.
• Inspect the door for a full, solid close.

Symptom-to-next-step guide

Symptom	Reset likely helps?	Next step
Display frozen or random characters	Yes	Power reset, then set clock
Keypad won’t respond	Sometimes	Check control lock, power reset
Completely dead	Rarely	Check house power; likely fuse issue
Runs but does not heat	No	Diagnose heating circuit parts

Why it matters

A simple reset can restore normal operation after a power surge or control glitch. If the issue is a fuse, door switch, or high-voltage heating component, resetting will not correct the root cause and the symptom usually returns.

Last updated: February 2026

Common problems with LG microwaves like model LMV1650ST-01 include not heating, blowing a fuse or going dead, the turntable not spinning, sparking or arcing, and vent fan or airflow issues. Many symptoms trace to a few high-wear parts, such as a fuse, door interlock switch, or high-voltage components.

Most common symptoms and what they usually point to

• Not heating: often a high-voltage component issue such as the microwave high-voltage diode 6021W3B001V or microwave high-voltage capacitor 0CZZW1H004B
• Completely dead or shuts off right after Start: commonly a blown microwave fuse 3B74133Q or a door switch problem (interlock)
• Runs but turntable does not rotate: failed microwave turntable motor 6549W1S013H or a mechanical bind under the tray
• Starts only with the door held a certain way: worn door interlock switch or latch alignment (LMV1650ST-01 uses multiple interlock switches)
• Poor venting or loud airflow noise: grease buildup, a stuck damper, or a restricted filter such as the microwave grease filter 5230W1A012E

Quick checks we recommend before replacing parts

1. Confirm power: verify the outlet works and the breaker is not tripped.
2. Check the door close: the door should close firmly with no sag; a weak close can prevent proper interlock operation.
3. Look for obvious arcing causes: metal in the cavity, damaged rack, or food splatter buildup.
4. Inspect filters and airflow (microwave/hood combos): clean the grease filter and confirm the vent damper moves freely.
5. Test only what is safe to test: internal high-voltage components can retain a dangerous charge even when unplugged.

Parts commonly involved (by symptom)

Symptom	Common part involved	Example part for LMV1650ST-01
Dead/no display	Fuse	Microwave fuse 3B74133Q
No heat	High-voltage diode/capacitor	Microwave high-voltage diode 6021W3B001V
Won’t start, door-related	Door interlock switch	Microwave door interlock switch 6600W1K001R
Turntable not spinning	Turntable motor	Microwave turntable motor 6549W1S013H
Weak venting/odor in recirculation mode	Charcoal filter	LG microwave charcoal filter 5230W1A003A

Why it matters

Microwave symptoms can look similar, but the fix is very different. For example, a “runs but no heat” complaint often involves high-voltage parts, while a “won’t start” complaint is frequently tied to door interlocks or a fuse. Correct diagnosis helps avoid unnecessary parts and repeat failures.

For deeper troubleshooting steps, we use the same process outlined in why is my microwave not heating.

Last updated: February 2026