Kenmore 72180409400 microwave/hood combo Parts

The Kenmore microwave/hood combo model 72180409400 is typically about 30 inches wide and 16 to 17 inches high; depth is commonly 15 to 17 inches for this style of over-the-range unit. For the exact cutout and mounting clearances, use the installation guide.

What measurements to check (and where they matter)

When you’re planning a replacement or confirming fit, we recommend checking these dimensions:

• Overall width (cabinet-to-cabinet fit; most are ~30 inches)
• Overall height (space between cooktop and cabinet)
• Overall depth (how far the door and bottom vent area project)
• Mounting plate hole pattern (must match the wall and cabinet drilling)
• Top cabinet cutouts (power cord hole and venting cutout)

Typical size range vs. what you should use for install

The exact dimensions can vary slightly by model series, so use the installation specs for 72180409400 when drilling or aligning the mounting plate.

Measurement	Typical over-the-range range	Best source for 72180409400
Width	29 7/8 in (common)	Installation guide
Height	16 to 17 in	Installation guide
Depth	15 to 17 in	Installation guide

Why it matters

A microwave/hood combo has to line up with the mounting plate, upper cabinet holes, and venting direction (recirculating or ducted). Even a small difference in depth or hole placement can turn a simple swap into cabinet and drywall rework.

Quick planning tips before you buy or install

• Measure the opening width between cabinets (most setups are built for ~30 inches).
• Confirm your venting setup (top vent, rear vent, or recirculating).
• Check the upper cabinet for existing holes from the prior unit.
• Verify the power outlet location and cord reach.
• Use the installation drawings to confirm minimum clearances above the cooktop.

Last updated: February 2026

For a Kenmore microwave/hood combo, the model number is printed on the appliance’s rating label. On model 72180409400, check the door opening area first; you will usually see the label on the frame behind the door or along the door edge.

Where to look on a microwave/hood combo

Check these common label locations (in order):

• Inside the microwave cavity on the left or right wall
• On the front frame behind the door (most common)
• Along the door edge itself
• On the top interior lip of the opening (visible with the door open)
• Behind the control panel (only if the label is missing elsewhere)

What the label looks like

The rating label is typically a white or silver sticker/plate with several fields.

Label field	What to use for parts	Example format
Model	Yes (most important)	72180409400
Serial	Sometimes	Letters and numbers
Electrical ratings	No (for parts lookup)	Volts/amps/watts

Tips to avoid ordering the wrong part

• Copy the model number exactly, including all digits
• If there’s a revision or suffix on the label, record it too
• Use the model number when selecting parts like a microwave grease filter 2B72705C or oven lamp 6912W3Q001A

Why it matters

Kenmore microwave/hood combo parts can look similar across models, but mounting points, door switches, filters, and electrical components vary by model number. Using the exact model number helps match the correct diagrams and replacement parts.

For diagrams and model identification details, use the owner's manual.

Last updated: March 2026

The average lifespan of a Kenmore microwave/hood combo like model 72180409400 is about 7 to 10 years with normal household use. Keeping the venting and airflow clean and fixing small issues early helps the microwave reach the upper end of that range.

What affects lifespan most

• Heavy daily run time (multiple long heating cycles per day)
• Poor airflow from clogged grease or charcoal filters
• Slamming the door or running with a damaged latch
• Power surges and repeated breaker trips
• Overheating from blocked vents or dirty internal cooling paths

Maintenance that extends service life

• Clean and reinstall the grease filter regularly; replace if damaged (see microwave grease filter 2B72705C)
• If you use recirculating mode, replace the charcoal filter on schedule (see lg microwave charcoal filter 5230W1A003A)
• Keep the door closing smoothly; address latch issues before they stress the interlock system
• Use cookware labeled microwave-safe and avoid running the unit empty

Repair vs. replace: quick guide

Symptom	Common cause	Typical next step
Runs but does not heat	High-voltage component failure	Professional diagnosis recommended
Turntable not turning	Failed motor or coupler issue	Check/replace turntable drive parts
Dead/no power	Thermal cut-off or power supply issue	Test safety devices and wiring

Why it matters

Microwave/hood combos combine cooking and ventilation, so airflow parts (filters, damper, fan) directly impact heat stress on internal components. Staying ahead on filter care reduces overheating and nuisance shutdowns.

For filter replacement intervals and venting setup details, follow the installation guide.

Last updated: March 2026