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Modern Maid
Electric Range

Model # QDU-878B Official Modern Maid electric range

Here are the diagrams and repair parts for Official Modern Maid QDU-878B electric range, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

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Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 169 parts  |
Burner Bowl, Large 74-06-184
#2A

Range top section (qdu-858) diagram

Burner bowl, large

Part #74-06-184

The manufacturer no longer makes this part, and there's no substitute part

Insert, Burner Bowl Large With Hole 36-01-035
#6B

Main top section (qdu-838) diagram

Insert, burner bowl large with hole

Part #36-01-035

The manufacturer no longer makes this part, and there's no substitute part

Broil Pan 36-01-033
#3

Oven accessories (qdu-838) (qdu-858) (qdu-878) diagram

Broil pan

Part #36-01-033

The manufacturer no longer makes this part, and there's no substitute part

Clip 71-04-056
Clip

Part #71-04-056

The manufacturer no longer makes this part, and there's no substitute part

Door Handle Mounting Screw 71-01-117
#24

Black glass door (qdu-838) (qdu-858) (qdu-878) diagram

Door handle mounting screw

Part #71-01-117

The manufacturer no longer makes this part, and there's no substitute part

Unit Support 44-02-315
#54

Cabinet section (qdu-838) (qdu-858) (qdu-878) diagram

Unit support

Part #44-02-315

The manufacturer no longer makes this part, and there's no substitute part

Oven Light Switch 74-03-056
Oven light switch

Part #74-03-056

The manufacturer no longer makes this part, and there's no substitute part

Insert, Large Burner Bowl 36-01-037
#2B

Range top section (qdu-858) diagram

Insert, large burner bowl

Part #36-01-037

The manufacturer no longer makes this part, and there's no substitute part

Burner Box Side Right 24-01-111
#51

Cabinet section (qdu-838) (qdu-858) (qdu-878) diagram

Burner box side right

Part #24-01-111

The manufacturer no longer makes this part, and there's no substitute part

Wire Shield 40-01-720
#4

Glass top section (qdu-878) diagram

Wire shield

Part #40-01-720

The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your ranges

Choose a symptom to see related range repairs.

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Why can't I unlock my range's oven door?

Main causes: broken oven door lock assembly, wiring failure, electronic control board problem…

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Why is my range's oven temperature wrong?

Main causes: faulty temperature sensor, electronic control board problem, control thermostat failure, weak burner ignite…

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Why won't my range's oven heat?

Main causes: power supply problem, control thermostat or electronic control board failure, broken element, bad burner ig…

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How do I get rid of streaks on my range's oven window?

Main causes: food splatters, spilling food on the oven door, allowing liquid to drip through oven door vent when cleanin…

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Why doesn't my range's oven broiler work?

Main causes: broken broiler element, weak or broken broil burner igniter, control system failure, faulty temperature sen…

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Why won't my range's oven bake?

Main causes: bad bake element, broken burner igniter, control system failure, blown thermal fuse, faulty temperature sen…

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Why isn't my range working?

Main causes: power supply failure, blown thermal fuse, bad relay control board, damaged terminal block, wiring failure…

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Most common repair guides to help fix your ranges

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

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How to replace a range oven door switch

How to replace a range oven door switch

The oven door switch detects whether the oven door is closed and helps control the oven light. Replace the switch if it …

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Repair difficulty
Time required
 30 minutes or less
How to replace a range oven door lock assembly

How to replace a range oven door lock assembly

Oven door not locking? You can replace the lock assembly in less than 30 minutes. Here's how.…

Read more
Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your ranges

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

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How to clean and maintain your stove

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How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

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