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Whirlpool
Microwave/Hood Combo

Model # WMH78019HB4 Official Whirlpool microwave/hood combo

Here are the diagrams and repair parts for Official Whirlpool WMH78019HB4 microwave/hood combo, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Installation guide
Owner’s manual
Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 107 parts  |
Gaoxin-hvd C W11222648
#26

Interior and ventilation parts diagram

Gaoxin-hvd c

Part #W11222648

Replaced by #W11256462

?
Manufacturer substitution
This part replaces W11222648. Substitute parts can look different from the original.
BEST SELLER
$24.65 | 
20% OFF Phone Price : $30.65
In Stock
Lamp Assembly 4393681
#4

Air flow parts diagram

Lamp assembly

Part #4393681

Replaced by #8206232A

?
Manufacturer substitution
This part replaces 4393681. Substitute parts can look different from the original.
BEST SELLER
$8.65 | 
10% OFF Phone Price : $9.65
In Stock
Turntable Motor W10466420
#7

Turntable parts diagram

Turntable motor

Part #W10466420

Replaced by #WPW10466420

?
Manufacturer substitution
This part replaces W10466420. Substitute parts can look different from the original.
BEST SELLER
$32.16 | 
16% OFF Phone Price : $38.16
In Stock
Filter 8206230
#8

Air flow parts diagram

Filter

Part #8206230

Replaced by #8206230A

?
Manufacturer substitution
This part replaces 8206230. Substitute parts can look different from the original.
BEST SELLER
$11.14 | 
15% OFF Phone Price : $13.14
In Stock
Halogen Lamp W10892536
#2

Interior and ventilation parts diagram

Halogen lamp

Part #W10892536

Replaced by #W10709921

?
Manufacturer substitution
This part replaces W10892536. Substitute parts can look different from the original.
$15.38 | 
12% OFF Phone Price : $17.38
Back Order
Turntable W11358813
#4

Turntable parts diagram

Turntable

Part #W11358813

Replaced by #W11402532

?
Manufacturer substitution
This part replaces W11358813. Substitute parts can look different from the original.
$34.39 | 
15% OFF Phone Price : $40.39
In Stock
Microwave/hood Filter W10531156
#15

Air flow parts diagram

Microwave/hood filter

Part #W10531156

Replaced by #WPW10531156

?
Manufacturer substitution
This part replaces W10531156. Substitute parts can look different from the original.
$31.13
In Stock
Microwave Installation Hardware Kit (replaces W10811221) W10821385
#NI

Cabinet and installation parts diagram

Microwave installation hardware kit (replaces w10811221)

Part #W10821385

$52.18 | 
10% OFF Phone Price : $58.18
In Stock
Housing W10210878
#12

Air flow parts diagram

Housing

Part #W10210878

Replaced by #WPW10210878

?
Manufacturer substitution
This part replaces W10210878. Substitute parts can look different from the original.
$19.07 | 
10% OFF Was : $21.19
In Stock
Magnetron W11188557
#18

Air flow parts diagram

Magnetron

Part #W11188557

Replaced by #W11230995

?
Manufacturer substitution
This part replaces W11188557. Substitute parts can look different from the original.
$180.59 | 
6% OFF Phone Price : $192.59
In Stock

Symptoms for water softeners

Choose a symptom to see related water softener repairs.

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Why does my water softener overflow?

Main causes: faulty brine valve assembly, bad rotor valve…

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Why does my water softener leak water?

Main causes: loose water line connections, cracked water-carrying components, bad rotor valve seals…

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Why are water softener resin beads in my water?

Main causes: broken resin tank screen, bad resin tank seals, cracked upper distributor in resin tank…

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Why isn't my water softener meter working?

Main causes: broken water flow meter, faulty timer, water flow to softener is bypassed…

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Why isn't my water softener using salt?

Main causes: salt bridge inside the salt tank, bad timer, valve motor failure, faulty rotor valve, clogged venturi…

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Why is there no display on my water softener?

Main causes: lack of electrical power, bad power transformer, faulty timer…

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Why isn't my water softener softening my water?

Main causes: empty salt tank, salt bridge, depleted resin, clogged or damaged venturi, broken rotor position switch, fai…

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Why is my softened water salty?

Main causes: clogged drain hose, faulty rotor valve, leaky rotor valve seals…

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Repair guides for water softeners

These step-by-step repair guides will help you safely fix what’s broken on your water softener.

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How to replace a water softener valve motor

How to replace a water softener valve motor

The valve motor rotates the valve rotor to operate the water softener. If the water softener valve motor fails, follow t…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a water softener venturi

How to replace a water softener venturi

The venturi valve in your water softener draws brine water from the salt tank to the resin tank for regeneration. Follow…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a water softener rotor position switch

How to replace a water softener rotor position switch

The rotor position switch detects the position of the valve rotor. If the rotor position switch fails, follow these step…

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Repair difficulty
Time required
 30 minutes or less

Effective articles & videos to help repair your microwave/hood combos

Use the advice and tips in these articles and videos to get the most out of your water softener.

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5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

Get tips on completing essential holiday cleaning tasks to brighten your home.…

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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