Maytag Bravos MED6300TQ User manual

TECHNICAL EDUCATION
JOB AID 8178644
ML-
7
ELECTRIC MODELS: MED6300TQ, MED6400TB, MED6400TQ
GAS MODELS: MGD6300TQ, MGD6400TB, MGD6400TQ
ELECTRIC & GAS DRYERS
™

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FORWARD
This Maytag Job Aid, “Bravos™ Electric & Gas Dryers” (Part No.8178644), provides the In-Home
Service Professional with information on the installation, operation, and service of the Bravos™
Electric & Gas Dryers. For specific information on the model being serviced, refer to the “Use
and Care Guide,” or “Tech Sheet” provided with the dryer.
The Wiring Diagrams used in this Job Aid are typical and should be used for training purposes
only. Always use the Wiring Diagram supplied with the product when servicing the dryer.
GOALS AND OBJECTIVES
The goal of this Job Aid is to provide information that will enable the In-Home Service Professional
to properly diagnose malfunctions and repair the Bravos™ Electric & Gas Dryers.
The objectives of this Job Aid are to:
• Understand and follow proper safety precautions.
• Successfully troubleshoot and diagnose malfunctions.
• Successfully perform necessary repairs.
• Successfully return the dryer to its proper operational status.
Copyright © 2007, Whirlpool Corporation, Benton Harbor, MI 49022
WHIRLPOOL CORPORATION assumes no responsibility for any repairs made on
our products by anyone other than authorized In-Home Service Professionals.

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TABLE OF CONTENTS
Page
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Dryer Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Model & Serial Number Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Model & Serial Number Label & Tech Sheet Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
INSTALLATION INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
PRODUCT OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Dryer Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Dryer Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11
COMPONENT ACCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Removing The Encoder, User Interface Board, And Machine Control . . . . . . . . . . . . . . . 4-2
Removing The Cabinet Front And Door Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Removing The Belt, Drum, & Rollers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Removing The Drive Motor And Belt Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Removing The Thermal Fuse & Exhaust Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11
Removing The High-Limit Thermostat And Thermal Cutoff (TCO)
(Gas Models Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Removing The Thermal Cutoff (TCO), Heater, And Inlet
Thermistor/High-Limit Thermostat (Electric Models Only) . . . . . . . . . . . . . . . . . . . . . . 4-13
Removing The Flame Sensor And Gas Burner Assembly
(Gas Models Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Removing The Moisture Sensor And Metal Oxide Varistors (MOVs) . . . . . . . . . . . . . . . 4-17
Removing The Drum Light Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19
COMPONENT TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Door Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Thermal Fuse & Exhaust Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
High-Limit Thermostat & Thermal Cutoff (TCO) (Gas Models Only) . . . . . . . . . . . . . . . . . 5-2
Flame Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Gas Burner Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Burner Ignitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Electric Heater (Dual Element) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Thermal Cutoff (TCO) And Inlet Thermistor/High-Limit Thermostat
(Electric Models Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Drive Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Belt Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

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Page
DIAGNOSTICS & TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Electric Dryers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Display Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Diagnostic Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Troubleshooting Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Adjusting Customer-Focused Drying Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Removing The Front Panel/Drum Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Accessing & Removing The Electronic Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
Removing The Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Gas Dryers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Display Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Diagnostic Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20
Troubleshooting Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20
Adjusting Customer-Focused Drying Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27
Removing The Front Panel/Drum Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28
Accessing & Removing The Electronic Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28
Removing The Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30
WIRING DIAGRAMS & STRIP CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Electric Dryers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Strip Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Gas Dryers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Strip Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

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GENERAL
DRYER SAFETY
Your safety and the safety of others are very important.
We have provided many important safety messages in this manual and on your appliance.
Always read and obey all safety messages.
This is the safety alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol and either the word
“DANGER” or “WARNING.” These words mean:
All safety messages will tell you what the potential hazard is, tell you how to reduce the
chance of injury, and tell you what can happen if the instructions are not followed.
You can be killed or seriously injured if you don’t
immediately follow instructions.
You can be killed or seriously injured if you don’t
follow instructions.
DANGER
WARNING

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MODEL & SERIAL NUMBER DESIGNATIONS
MODEL NUMBER
SERIAL NUMBER
SERIAL NUMBER M U 41 10200
MANUFACTURING SITE
M = Marion, OH
YEAR OF PRODUCTION
U = 2007
WEEK OF PRODUCTION
41 = 41st Week
PRODUCT SEQUENCE NUMBER
MODEL NUMBER M E D 6 4 00 T B 0
BRAND
M = Maytag
ACCESS / FUEL
T = Top Load G = Gas
F = Front Load H = Horizontal
W = Work Space V = Vertical
E = Electric
PRODUCT
W = Washer P = Pedestal
D = Dryer B = Combo
T = Thin Twin C = Compact
SERIES
1 = Innovation 6 = Oasis
2 = Commercial 7 = Merloni
3 = Compact 8 = Horizon
4 = Stack 9 = Duet/Combo
5 = LEAP
PRICE POINT LEVELS (1 - 7)
TRADE PARTNER
00 = Brand 30 = NATM
10 = SBC 40 = Lowe’s
20 = Best Buy
YEAR OF INTRODUCTION
T = 2007
COLOR CODE
Q = White
B = Black
ENGINEERING CHANGE
0 = Basic Original Release
1 = First Revision

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MODEL & SERIAL NUMBER LABEL &
TECH SHEET LOCATIONS
The Model/Serial Number Label and Tech Sheet locations are shown below.
Model/Serial
Number Location
Tech Sheet Location
(Access Under Console)

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SPECIFICATIONS
MODEL NUMBERS
ELECTRIC MED6300TQ MED6400TB, Q
GAS MGD6300TQ MGD6400TB, Q
PRIMARY FEATURES
CAPACITY (CU. FT.) 7 7
CAPACITY Super Capacity Plus Super Capacity Plus
# OF CYCLES 7 7
HEAVY DUTY x x
NORMAL x x
WRINKLE CONTROL x x
DELICATE x x
TIMED DRY x x
RAPID DRY x x
FRESHEN UP x x
DAMP DRY CHIME x x
TEMPERATURE SETTINGS
HIGH 155 ±5°F (68.3°C) 155 ±5°F (68.3°C)
MEDIUM 140 ±5°F (60°C) 140 ±5°F (60°C)
LOW 125 ±5°F (51.6°C) 125 ±5°F (51.6°C)
EX-LOW (ULTRA DELICATE) 105 ±5°F (40.5°C) 105 ±5°F (40.5°C)
AIR FLUFF x x
CABINET COLOR
WHITE x x
BLACK x
TOP FINISH Painted Porcelain
DOOR Solid Glass
UTILITIES
MOTOR RATING 1/3 HP 1/3 HP
HEATER ELEMENT Single Element 5400W Dual Element (2) 2700W
GAS BTU 22,000 BTU 22,000 BTU
U.L. RATED LOAD 18 LBS (8.16 KG) 18 LBS (8.16 KG)
UNIT DIMENSIONS
HEIGHT 42 IN (106.6 CM) 42 IN (106.6 CM)
WIDTH 29 IN (73.6 CM) 29 IN (73.6 CM)
DEPTH 30 1/8 IN (76.5 CM) 30 1/8 IN (76.5 CM)
SHIPPING WEIGHT Gas - 150 LBS (68.1 KG)
Electric - 145 LBS (65.7 KG)
Gas - 151 LBS (68.4 KG)
Electric - 147 LBS (66.7 KG)

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INSTALLATION INFORMATION
INSTALLATION INSTRUCTIONS
TOOLS AND PARTS
Gather the required tools and parts before
starting installation. Read and follow the in-
structions provided with any tools listed here.
Electric Models
Flat-blade screwdriver
#2 Phillips screwdriver
Adjustable wrench that opens to 1˝
(2.5 cm) or hex-head socket wrench (for
adjusting dryer feet)
Wire stripper (for direct wire installations)
Tin snips (new vent installations)
Level
Vent clamps
Caulking gun and compound (for installing
new exhaust vent)
Tape measure
Gas Models
8˝ or 10˝ pipe wrench
8˝ or 10˝ adjustable wrench (for gas con-
nections)
Flat-blade screwdriver
Adjustable wrench that opens to 1˝
(2.54 cm) or hex-head socket wrench (for
adjusting dryer feet)
1/4˝ nut driver or socket wrench
Level
Vent clamps
Knife
Pipe-joint compound resistant to LP gas
Caulking gun and compound (for installing
new exhaust vent)
Pliers
Tape measure
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Parts needed:
Check local codes and with gas supplier.
Check existing gas supply, electrical supply
and venting. Read “Electrical Requirements,”
“Gas Supply Requirements” and “Venting Re-
quirements” before purchasing parts.
Mobile home installations require special
parts (listed following) that may be ordered by
calling the dealer from whom you purchased
your dryer. For ordering information, please
refer to the “Assistance or Service” section of
the “Use & Care Guide.” You may also con-
tact the dealer from whom you purchased
your dryer.
Mobile home installation kit. Ask for Part
Number 346764.
Metal exhaust system hardware.
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4 leveling leg
s
Parts supplied:
Remove parts package from dryer drum.
Check that all parts were included.

2-2
*Most installations require a minimum 5˝
(12.7 cm) clearance behind the dryer for the
exhaust vent with elbow. See “Venting Re-
quirements,” page 2-17.
Installation spacing for recessed area or
closet installation
The following spacing dimensions are recom-
mended for this dryer. This dryer has been
tested for spacing of 0˝ (0 cm) clearance on
the sides and rear. Recommended spacing
should be considered for the following rea-
sons:
Additional spacing should be considered
for ease of installation and servicing.
Additional clearances might be required for
wall, door and floor moldings.
Additional spacing should be considered
on all sides of the dryer to reduce noise
transfer.
For closet installation, with a door, mini-
mum ventilation openings in the top and
bottom of the door are required. Louvered
doors with equivalent ventilation openings
are acceptable.
Companion appliance spacing should also
be considered.
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43½"
(110.5cm)
*29¼"
(74.3cm)
22
¼"
(56.5 cm)
29"
(73.7cm)
WARNING
LOCATION REQUIREMENTS
Explosion Hazard
Keep flammable materials and vapors,
such as gasoline, away from dryer.
Place dryer at least 18 inches (46 cm)
above the floor for a garage installation.
Failure to do so can result in death,
explosion, or fire.
You will need
A location that allows for proper exhaust
installation. See “Venting Requirements,”
page 2-17.
A separate 30-amp circuit.
If you are using a power supply cord, a
grounded electrical outlet located within
2 ft (61 cm) of either side of the dryer. See
“Electrical Requirements,” pages 2-4, 2-6,
or 2-14.
A sturdy floor to support the total weight
(dryer and load) of 200 lbs. (90.7 kg). The
combined weight of a companion appli-
ance should also be considered.
A level floor with a maximum slope of
1˝ (2.5 cm) under entire dryer.
Do not operate your dryer at temperatures
below 45°F (7°C). At lower temperatures, the
dryer might not shut off at the end of an auto-
matic cycle. Drying times can be extended.
The dryer must not be installed or stored in an
area where it will be exposed to water and/or
weather.
Check code requirements. Some codes limit,
or do not permit, installation of the dryer in ga-
rages, closets, mobile homes or sleeping quar-
ters. Contact your local building inspector.
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NOTE: No other fuel-burning appliance can
be installed in the same closet as a dryer.
INSTALLATION CLEARANCES
The location must be large enough to allow
the dryer door to open fully.
Dryer Dimensions