Amana Domestic WasherTechnical Information 120 V, 60 Hz Models ALW780QMC ALW780QMW
PALW780QMC1 PALW780QMW1
• Due to possibility of personal injury or property damage, always contact an authorized technician for servicing or repair of this unit. • Refer to Service Manual RS3100007 for detailed installation, operating, testing, troubleshooting, and disassembly instructions. • Refer to Parts Manual RP3100020 for part number information.
!
CAUTION
All safety information must be followed as provided in this Technical Sheet and in Service Manual RS3100007.
!
WARNING
To avoid risk of electrical shock, personal injury, or death, disconnect power to unit and discharge capacitor before servicing, unless testing requires it.
Models Power Source Voltage AC Amperage (minimum requirement) Amperage (maximum load) Frequency Motor horsepower Receptacle Plug Dimensions Cabinet Height−overall Height of cabinet Width Depth Clearance−washer lid Weight Crated
April 2001
ALW780QM* 120 VAC 15 A 13 A 60 Hz 1/2 6-20R 6-20P
43” 36” 27” 28” 17 1/2” 193 lbs.
Models Wash cycles Water temperatures Water level Features Steady Spin Balance System Self-cleaning lint filter Self-adjusting rear leveling legs 210 Agitation stroke Tri−Action wash system Fabric softener dispenser Extra rinse SofSound Quiet Pack Motor speed Spin speed (revolutions per minute) Agitation speed (strokes per minute) High Medium
1
ALW780QM* 12 4 Variable X X X X X X X X 2 speed 710 / 473 rpm 69 spm 46 spm
RT3100023 Rev. 0
Component Testing Information
!
WARNING
To avoid risk of electrical shock, personal injury, or death, disconnect power to washer before servicing, unless testing requires it.
Illustration 40046601
Component Temperature switch
2 1
Hot / Cold Warm / Warm
L2
L1
Test Procedure Disconnect wires from component to properly measure the resistance of the component. Place switch in the following positions and measure across the terminals below:
Warm / Cold Cold / Cold 40039501
Speed switch
2 C
40097701
Mixing valve
40059001
Timer
>1 Ω >1 Ω >1 Ω >1 Ω
Disconnect wires from component to properly measure the resistance of the component. Place switch in the following positions and measure across the terminals shown below: Reg / Fast Reg /Slow Gentle / Fast Gentle / Slow
L2
L1
L1-2 ........................... L1-1, L1-2, L2-2 L2-1, L2-L1, 1-2 ......... L1-1, L1-2, 1-2 ........... L1-1 ...........................
Results
L1-C, L2-C ................. L1-C, L2-2.................. L1-2, L2-C.................. L1-2, L2-2 ..................
>1 Ω >1 Ω >1 Ω >1 Ω
Measure resistance of terminals on each valve. Resistance across each valve .............
Approximately 1000 Ω ± 10%
Verify input and output voltage is present.
See timing sequence chart for functional description of the component.
Verify wiring is correctly connected to the timer.
40055101
Pressure switch
2 1 3
40035001
Lid switch−SPST
Do not disconnect the pressure hose from pressure switch to perform measurements. Measure resistance across the following terminals on the pressure switch: Terminal 1 to 2 ................................ Terminal 1 to 3 ................................
Air pressure that actuates switch is determined by the water level of the tub. Continuity (no pressure) Continuity (pressure)
Disconnect wire terminals from switch. Test terminals with switch closed ...... Test terminals with switch open.........
RT3100023 Rev. 0
Refer to wiring diagram/schematic for correct contacts.
2
Continuity Infinite
>1 Ω 1 MΩ
April 2001
Component Testing Information
!
WARNING
To avoid risk of electrical shock, personal injury, or death, disconnect power to washer before servicing, unless testing requires it.
Illustration 038424*
Component Rocker switch (Extra Rinse) *− Indicates color
R0000014
Brake pad kit
Test Procedure Measure resistance of switch positions: Closed (ON position)..................... Open (OFF position) ...................
Results
Continuity Infinite
If washtub does not stop spinning within seven seconds after opening loading door.
Replace all three brake pads.
>1 Ω 1 MΩ
If brake pads make noises ..............
Apply a thin layer of silicone (26594P) on pads, see Service Bulletin “ASQ−213−B” See following section “Internal Motor Diagram and Schematic” for correct wiring contacts.
40116402
Motor
Type of motor: Two speed
40084501
Capacitor
Discharge Capacitors Remove wires from capacitor terminals and connect ohmmeter, set on highest resistance scale to terminals.
Between Terminals: Meter should momentarily deflect towards zero then return to over 5 MΩ. If no deflection occurs, or if continuous deflection occurs, replace capacitor. Terminal to Case: Infinite resistance
40040301
Drain pump
Also check between each terminal and capacitor case. Verify drain pump is not clogged or damaged.
Remove clog and verify proper operation. Replace drain pump if damaged.
40032701
Transmission assembly
Type of transmission: 710 rpm
Externally identical, must be identified by part number. If transmission locks-up, replace.
40053601
Drive belt
Type of drive belt: 710 rpm
Refer to “Parts Manual”, to verify which drive belt and pulley size is required.
Refer to “Parts Manual” for proper pulley size. 40098701
Power cord
Measure resistance of wires.
Continuity should be indicated on each wire. Verify polarity and grounding.
April 2001
3
RT3100023 Rev. 0
Internal Motor Diagram and Schematic
!
WARNING
To avoid risk of electrical shock, personal injury, or death, disconnect power to washer before servicing, unless testing requires it.
One or Two Speed Motors Continuity exists between switch terminal R and Red wire. Start Terminals
YES Manually depress actuator. Continuity broken between switch terminal R and Red wire. YES Continuity exists between switch terminal P and Red wire.
High Speed Terminals
Low Speed Terminals
NO
NO
Inoperative start switch. Replace switch.
NO
YES Manually depress actuator. Continuity broken between switch terminal P and Red wire. YES Continuity broken between switch terminal P and Violet wire.
NO
Inoperative high speed switch. Replace switch.
NO
YES Manually depress actuator. Continuity exists between switch terminal P and Violet wire. YES
NO
Inoperative low speed switch. Replace switch.
Motor switch checks OK.
Start Winding
4-5 ohms between Brown wire and Red wire.
NO
Inoperative start winding. Replace motor.
NO
Inoperative high speed winding. Replace motor.
NO
Inoperative low speed winding. Replace motor.
NO
Inoperative common lead. Replace motor.
YES High Speed Winding
1-2 ohms between Blue wire and Yellow wire. YES
Low Speed Winding
1-2 ohms between Yellow wire and Violet wire. YES
Protector
Continuity exists between Yellow wire and White wire. YES All motor windings checks OK.
RT3100023 Rev. 0
4
April 2001
Internal Motor Diagram and Schematic
!
WARNING
To avoid risk of electrical shock, personal injury, or death, disconnect power to washer before servicing, unless testing requires it.
BR
W
BU Y
P
R
Wire harness connection block
White Brown Yellow
Red
Blue
WHITE
RED
BLUE
4 POLE MAIN
VIOLET
Y
BU
BR
G W
P
R
WHITE
BR O W YE N LL O W
RUN
START
Violet
6 POLE MAIN PROTECTOR
AUX
Motor Assembly (two speed motor) April 2001
5
RT3100023 Rev. 0
RT3100023 Rev. 0
6
16 6
18
9
10 11 14 5
SP
AG
K F G A
8
15 3 4
LO EX
TM
PS TM BP
19 22 24 21 20
BLU VLT BRN
YLW
BLK 18 GA.
WHT/BLU
PNK BLU/WHT
WHT/RED GRY/BLK PNK/BLU PNK/BLU WHT/BLK
GRY BLK/PNK RED BLU/BLK RED/BLK
24 PIN HOUSING
1 1A
GROUND TO TOP
WHT
N.O.
GRN
EXTRA RINSE SWITCH
ORG
4 POSITION TEMP. SWITCH
CONNECTOR
L2 1 L1 2
GROUND TO CONTROL HOOD
DIAGRAM
2 3
COM.
9
7 6 5 4 8
1
3 2
POWER CORD
PNK BLU VLT BRN WHT RIDGE OR TINNED TERMINAL = NEUTRAL
L2 2 L1 C
GRN/YEL GRY WHT/RED
PNK/BLU
4 POSITION ACTION SWITCH
LID SWITCH
PRESSURE SWITCH
1
GROUND TO TOP
GRN/YEL
RECEPTACLE
9
7 6 5 4 8
1
3 2
VLT
BRN WHT
5 8 3 7 1 6 4
RED
WHT/RED PNK BLU
GRN/YEL
5 8 3 7 1 6 4
RED NATURAL
HOT COLD
CAPACITOR
MOTOR
HOUSING
GRY
ORG
WHT/RED
PLUG GRN/YEL
GROUND TO CABINET
!
L
V W R H P
TIMER
CONNECTION
MIXING VALVE
Wiring Diagram and Schematic To avoid risk of electrical shock, personal injury, or death, disconnect power to washer before servicing, unless testing requires it.
WARNING
April 2001
Wiring Diagram and Schematic
!
WARNING
To avoid risk of electrical shock, personal injury, or death, disconnect power to washer before servicing, unless testing requires it.
SCHEMATIC L1
N
120 VOLTS A.C. 60 HZ A
BP
PS
A EX
PRESSURE SWITCH 3
HOT
P
LID SWITCH
TEMP. SWITCH HOT COLD WARM WARM WARM COLD COLD COLD
1
2
EXTRA RINSE SWITCH 4 POSITION WATER
MIXING VALVE COLD
V
H 4 POSITION WATER TEMP. SWITCH L1
L1-2 N.O. L1-L2-1-2
R
W L2
L1-1-2 L1-1
SPRAY RINSES = COLD TM
LO 1
2
SP 4 POSITION ACTION SWITCH REGULAR FAST REGULAR SLOW
GENTLE FAST GENTLE SLOW
L1-L2-C L1-C L2-2
L1-2 L2-C L1-L2-2
2
L2
TM AG
C
L1 4 POSITION ACTION SWITCH
3
K TIMER MOTOR
MOTOR
HIGH
7 F
LOW
1
4
L
START
6
AGITATE
K
TP
SPIN
G
8
L
INDICATES INTERNAL TIMER BUSS
April 2001
7
RT3100023 Rev. 0
Timer Cycle Chart
To avoid risk of electrical shock, personal injury, or death, disconnect power to washer before servicing, unless testing requires it.
8
6
4
2
0
T B
T B
T B
T B
T B
T B
LOW SPEED MOTOR SPIN
SPIN AGITATE
AGITATE SPIN
MOTOR AGITATE
PRES/SW BYPASS EX RINSE ENABLE
FILL
SWITCH FUNCTION
P-V P-H
TM-LO TM-SP
G-K G-L
F-K F-L
TM-AG
A-BP A-EX
A-PS
IDENT
P A U S E
S P I N P A U S E
W A S H
PR A I UN SS EE
100
P A U S E
S P I N
P A U S E
R I N S E
P A U S E
S P I N
O F F
150
W A S H
160
P A U S E
S P I N
170
A
PR A I UN SS EE
P A U S E
S P I N
P A U S E
180
P A U S E
O F F
S WS OAO ASA K HK
210
S O A K
S P I N
260
A
P A U S E
R I N S E
P A U S E
270
S P I N
250
R I N S E
P A U S E
S P I N
O F F
S WS W O AOA A SA S K HK H
B B
310
290
S P I N
330
A
P A U S E
R I N S E
340
P A U S E
S P I N
O F F
W A S H
360
HANDWASH
S O A K
320
EXTRA RINSE
P A U S E
280
DELICATE
WS W AOA SAS HK H
240
B B B
230
PART NO. 40118401 S P I N
220
EXTRA RINSE
R I N S E
200
CONTACTS OPEN
PERMANENT PRESS
140
CONTACTS CLOSED 190
EXTRA RINSE
S P I N
130
REGULAR
P A U S E
A
120
THIS MACHINE MANUFACTURED UNDER ONE OR MORE OF THE FOLLOWING PATENTS: UNITED STATES NO: 3,253,874; 3,838,755; 3,8453642 CANADIAN NO: 1,008,265; 994,685 OTHER PATENTS PENDING
110
Failure to install, maintain, and/or operate this machine according to manufacture's instructions may result in conditions which can produce bodily injury and/or property damage. 90
PRE WASH
W A S H
80
300
350
10 11121314 15 16 17 18 19 20 21 22 23 24 2526 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55
70
SOAK
S O P F I F N
40
6 7 8 9
60
S O A K
DEGREES
1 2 3 4 5
50
W A S H
COLD WATER HOT WATER
V-W V-R
TERM
WASH RINSE
30
TIMER CHART INTERVAL NUMBER
20
R A
10 T B
D
12
T B
CAM
14
10
PS
EX
AG
L
L
SP
H
R
A
A
TM
F
G
TM
P
W
V
LO
K
K
BP
KEY "A" INDICATES 27 SECOND WATER ON ±7 SECONDS. "B" INDICATES 27 SECOND MOTOR ON ±7 SECONDS.
V
3
8
1
11
13
BLU
10
7
5 4 PNK/ BLU X2
2
24 PIN HOUSING WIRE POSITION
6
GRY/ BLK
9
BLU/ BLK WHT
14
19
PINK
16
VLT
YLW WHT/ BLK
12
15
20
17
WHT/ BRN RED
18
21
WHT/ BLU
23
BLK/ PINK
22
BLU/ RED/ GRY BLK BLK
24
RED
April 2001
8
RT3100023 Rev. 0
WARNING
!