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Maytag MGDC300XW3 29" gas dryer Parts

Here are the diagrams and repair parts for Maytag MGDC300XW3 29" gas dryer, as well as links to manuals and error code tables, if available.

Maytag MGDC300XW3 29" gas dryer
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Browse Parts for MGDC300XW3 29" Gas Dryer

  • Washer Screw for Maytag MGDC300XW3 - Part WP90767

    Top and console parts diagram

    Screw

    Part #8533971

    Replaced by #WP90767

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  • Dryer Door Catch for Maytag MGDC300XW3 - Part W11429587

    Cabinet parts diagram

    Catch

    Part #W10529190

    Replaced by #W11429587

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  • Dryer Burner Sight Plug for Maytag MGDC300XW3 - Part W10811916

    Cabinet parts diagram

    Dryer Burner Sight Plug

    Part #8564457

    Replaced by #W10811916

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  • Dryer Rear Panel for Maytag MGDC300XW3 - Part 280043

    Cabinet parts diagram

    Dryer Rear Panel

    Part #W10571724

    Replaced by #280043

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  • Whirlpool Dryer Burner Igniter Kit for Maytag MGDC300XW3 - Part 279311

    Burner assembly parts diagram

    Igniter

    Part #686590

    Replaced by #279311

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  • Appliance Porcelain Touch-up Paint, 1-qt (white) for Maytag MGDC300XW3 - Part 799344

    Optional parts (not included) diagram

    Paint (white)

    Part #799344

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  • Dryer Gas Pressure Regulator Spring for Maytag MGDC300XW3 - Part WP694422

    Burner assembly parts diagram

    Dryer Gas Pressure Regulator Spring

    Part #694422

    Replaced by #WP694422

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  • Cover for Maytag MGDC300XW3 - Part W11173656

    Cabinet parts diagram

    Door Cover

    Part #W10529198

    Replaced by #W11173656

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  • Refrigerator Screw for Maytag MGDC300XW3 - Part WP489463

    Bulkhead parts diagram

    Refrigerator Terminal Block Enclosure Screw

    Part #489463

    Replaced by #WP489463

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  • Dryer Door Seal for Maytag MGDC300XW3 - Part W10389572

    Cabinet parts diagram

    Dryer Door Seal

    Part #W10389572

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

Maytag 29" Gas Dryer MGDC300XW3 FAQs

The most common Maytag dryer complaint (including model MGDC300XW3) is the dryer will not start. In many cases, the cause is simple (power, door not fully closed, or airflow safety issues), but it can also involve a failed switch, timer, or motor.

Most common symptoms and what they usually point to
  • Won’t start at all: door switch, timer/control, motor, power supply
  • Runs but won’t heat (gas dryer): igniter, gas valve coils, radiant sensor, high-limit thermostat
  • Takes too long to dry: restricted venting, lint buildup, crushed duct, blower issues
  • Noisy or thumping: worn drum rollers, bearing wear, loose blower wheel
  • Stops mid-cycle: overheating from poor airflow, thermal cut-off opening
Quick checks we recommend first (MGDC300XW3)
  1. Confirm the dryer is plugged into a properly grounded outlet and the breaker is on.
  2. Make sure the door closes firmly; a weak door switch can prevent starting.
  3. Check airflow: the dryer must be exhausted outdoors and use 4-inch heavy metal venting (no plastic or foil). See the installation guide.
  4. Clean the lint screen and inspect the vent run for kinks, crushing, or heavy lint.
  5. If the drum won’t turn, stop using the dryer and inspect the drive system.
Common parts tied to “won’t start” and “won’t heat”
Symptom Common part to check Example part for MGDC300XW3
Won’t start Door switch Dryer door switch WP3406107
Won’t heat (gas) Gas valve coils Dryer valve coil kit 279834
Won’t heat (gas) Igniter Igniter 279311
Noisy drum Drum support rollers Dryer drum support roller WPW10314173
Why it matters

A “won’t start” or “long dry time” problem is often tied to airflow and safety. Poor venting can cause overheating, shutdowns, and repeated part failures. Following the venting and electrical requirements in the installation guide helps prevent repeat issues.

Last updated: January 2026

A Maytag dryer like model MGDC300XW3 typically lasts 10 to 15 years with normal household use. Consistent vent cleaning, avoiding overloads, and fixing small issues early (noise, weak heat, long dry times) are the biggest factors in reaching the high end of that range.

What affects dryer lifespan the most
  • Venting and airflow: Long or kinked vents increase heat stress and can shorten dryer life.
  • Load size: Frequent overloading strains the drive motor, drum supports, and belt.
  • Heat system health (gas models): Ignition and flame stability affect cycle time and wear.
  • Routine cleaning: Lint buildup raises temperatures and reduces performance.
  • Early part replacement: Replacing worn wear-items prevents secondary damage.
Quick maintenance checklist (high impact)
  • Clean the lint screen every load.
  • Inspect the vent path for crushing or kinks; keep the run as straight as possible.
  • Use rigid metal venting and limit 90° turns when possible.
  • Keep the dryer level so the drum tumbles correctly.
  • If drying times increase, address airflow first before replacing parts.
Common wear parts and what they usually cause
Symptom Likely wear area Example part for MGDC300XW3
Thumping, squealing, rumbling Drum support and bearing surfaces Dryer drum support roller WPW10314173
Runs but no heat or heat cuts out Gas ignition and safety controls Igniter, thermal cut-off, high-limit thermostat
Long dry times Venting, blower, lint buildup Blower wheel, vent system
Why it matters

A dryer that is forced to run hotter or longer than designed (usually from restricted venting) wears out key components faster and can reduce performance for every cycle. Following the venting and setup guidance in the MGDC300XW3 installation guide helps protect the motor, drum supports, and gas heat system.

Last updated: January 2026

The Maytag MGDC300XW3 29-inch gas dryer has a 7.0 cu. ft. capacity, which is considered a full-size drum for everyday family loads. This capacity helps you dry bulkier items like towels and bedding with fewer cycles when the venting is in good shape.

What 7.0 cu. ft. means in real use

A 7.0 cu. ft. drum is designed for larger, mixed loads, but performance still depends on airflow and load size.

  • Dry mixed loads without packing the drum tight; items need room to tumble
  • Dry bulky items (comforters, towels) in smaller batches to keep airflow moving
  • Clean the lint screen every load to maintain drying speed
  • Check the exhaust vent for restrictions if loads start taking longer
Quick capacity comparison
Dryer size class Typical capacity range Best for
Compact 3.4 to 4.4 cu. ft. Small spaces, light loads
Standard/full-size 6.5 to 7.4 cu. ft. Most households
Extra-large 7.5+ cu. ft. Large families, frequent bulky loads
Why it matters

Capacity affects how well clothes tumble and how efficiently moisture is removed. Overloading a 7.0 cu. ft. dryer can increase dry time, raise operating temperature, and contribute to wear on moving parts like drum supports and rollers.

If your MGDC300XW3 is noisy or thumping under heavier loads, inspect common wear items such as the dryer drum support roller WPW10314173 and related drum support hardware. For model-specific use and care guidance, follow the MGDC300XW3 owner’s manual.

Last updated: January 2026

Most common symptoms to help you fix your dryers

Choose a symptom to see related dryer repairs.

Main causes: bad gas valve coils, broken heating element, tripped safety thermostat or fuse, bad operating thermostat, c…

Main causes: clogged exhaust system, heating system failure, deposits on moisture sensor, control system failure…

Main causes: clogged exhaust vent, bad motor relay, loose dryer door catch, bad door switch, control system failure, fau…

Main causes: door switch failure, lack of power, broken belt, blown thermal fuse, bad drive motor, control system failur…

Main causes: damaged door strike, worn door catch…

Main causes: lack of electrical power, bad power cord, wiring failure, bad control board, blown thermal fuse, bad door s…

Main causes: bad timer or electronic control board, door switch failure…

Main causes: bad drum support roller, damaged idler pulley, broken blower fan blade, worn drum glide bearing, bad drive …

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