Maytag MSD2656KES - 26 cu. Ft. Refrigerator Technical information

Side-by-Side Refrigerator⎯Technical Information
ASD2627KE* ASD2627KE*0, JSD2690HE* JSD2690HE*2, MSD2656KE*
MSD2656KE*0, MSD2656KG* MSD2656KG*0, MZD2666KE* MZD2666KE*0
! CAUTION
Due to a possibility of personal injury or property damage, always contact an authorized technician for
service or repair of this refrigerator. All safety information must be followed as provided in Service Manual
16025628.
!
WARNING
To avoid risk of electrical shock that can cause death or severe personal injury, disconnect unit from power
before servicing unless testing is required. Discharge capacitors through a 10,000 ohm resistor before
handling. Wires removed during disassembly must be replaced on correct terminals to ensure proper
grounding and polarization.
Kw/24 hr ±0.4
Ambient °F
26 cu ft
70°
1.2
90°
1.85
110°
2.6
No-Load Performance, Controls in Normal Position
Refrigerator Center
Compartment Average
Percent Run Time
Food Temperature
Cycles/24 hr
±10%
±3°F
±25%
70°
35
90°
55
110°
75
70°
24
90°
24
110°
19
70°
37
90°
39
110°
42
Freezer
Compartment
Average Food
Temperature ±3°F
70°
90°
110°
0
0
-2
Temperature Relationship Test Chart
Ambient °F
26 cu ft
Evaporator
Outlet
±3°F
70°
90°
-15
-15
Evaporator
Inlet
±3°F
70°
90°
-16
-16
Suction Line
±7°F
70°
72
90°
98
Average Total
Wattage ±10%
70°
132
90°
138
Suction
Pressure
±2 PSIG
70°
6"(Vac.)
90°
0
Head Pressure
± 5 PSIG
70°
87
90°
137
Schematic
February 2006
© 2006 Maytag Services
1
16026983
Component Specifications
!
WARNING
To avoid risk of electrical shock that can cause death or severe personal injury, disconnect unit from power
before servicing unless tests require power. Discharge capacitors through a 10,000-ohm resistor before
handling. Wires removed during disassembly must be replaced on correct terminals to ensure proper grounding
and polarization
Component
Compressor run capacitor
Specifications all parts
115VAC/60HZ unless noted
Volt .....................................................
Capacitance ......................................
220 VAC
15 μfd ± 10%
905 BTUH
60 Hz / 153 watts
19.0 amps± 15%
1.26 amps± 15%
3.33 ohms± 15%
4.28 ohms± 15%
Compressor
BTUH .................................................
Watt ...................................................
Current Lock rotor ..............................
Current Full load ................................
Resistance Run windings...................
Resistance Start windings..................
Electric damper control
Maximum closing time ....................... 8 seconds
Temperature Rating ........................... 20°F- 110°F
RPM ................................................... 5
Temperature
Resistance
77°F.................................................... 10,000 ohms± 1.8%
36°F ................................................... 29,500 ohms± 1.0%
0°F...................................................... 86,300 ohms± 1.8%
Thermistor
Condenser motor
Rotation (facing end opposite shaft)
RPM……………………………………
Watt....................................................
Current ...............................................
Clockwise
1120 RPM
3.4 watts±15%@115VAC
0.085 amps± 15%@115VAC
Evaporator fan motor
Rotation (facing end opposite shaft)
RPM……………………………………
Watt…………………………………….
Note: Fan blade must be fully seated
on shaft to achieve proper airflow.
Ult. trip amps @ 158°F (70°C) ...........
Close temperature ...........................
Open temperature ............................
Short time trip (seconds)....................
Short time trip (amps @77°F (25°C) ..
Clockwise
2800 RPM
5.9 ±15% watts@115VAC
Volt ....................................................
Watt ...................................................
Current ...............................................
Resistance across terminals:
Above 42°F ±5°..................................
Below 12°F ±7° ..................................
Volt.....................................................
Wattage..............................................
Resistance .........................................
120/240 VAC
475 watts
10/5 amps
Control board
Volt.....................................................
120VAC, 60 HZ
See Control board troubleshooting section
Auger Motor
Rotation (facing end opposite shaft)
Water Valve
RPM ...................................................
Watts..................................................
Power to blue and white is clockwise. Power to
orange and white is counterclockwise.
17± 3 RPM
Brown side 35w,Yellow side 20w
Light switch
Type……………………………………..
Volt………………………………………
Current…………………………………..
SPST NC
125/250 VAC
8/4 amps
Light switch / Interlock
Type……………………………………..
Volt………………………………………
Current…………………………………..
Resistance across leads ....................
SPDT NO/NC
125/250 VAC
8/4 amps
101ohms ± 10%
Overload/Relay
Thermostat (Defrost)
Evaporator heater
Solenoid (Ice Chute)
16026983
2.40 amps± 15%
140°F ±10°F
230°F ±5°F
17 seconds ±5
12 amps ±2amps
Open
Closed
115 VAC
450 ±5% watts @ 115VAC
29 ±7.5% ohms
2
February 2006
© 2006 Maytag Services
Control Board Troubleshooting
!
WARNING
To avoid risk of electrical shock that can cause death or severe personal injury, disconnect unit from power before
servicing unless tests require power. Discharge capacitors through a 10,000-ohm resistor before handling. Wires
removed during disassembly must be replaced on correct terminals to ensure proper grounding and polarization.
Programming Mode:
Note: The Program Code is located on the Serial Plate on this unit after the word Code.
1. Open the Fresh Food door and hold the Fresh Food door light switch closed while pushing the
Freezer Temperature Down
Key pad 3 times consecutively.
Note: The 3 Keystrokes must be done consecutively and within 10 seconds.
2.
Release the Fresh Food door light switch.
3.
The control will display PE to confirm entry into the programming mode.
Freezer
P
Refrigerator
E
4.
Entry is confirmed by pressing the Freezer Down
key once more.
Note: All control functions will be turned off (Compressor, Defrost, Evaporator Fan, the damper will
remain in its current position).
5.
The control will display the current Program Code. This value should be validated with the Program
Code printed on the unit serial plate.
Freezer
2
Refrigerator
5
Note: If the Program Code is correct, the Programming Mode is exited by closing the Refrigerator door(s).
keys. The
6.
To set the desired Program Code number press the Freezer and Refrigerator UP
corresponding digit will be advanced with each key press.
Key until the Program
7.
Once the desired Program Code is displayed, press the Freezer DOWN
Code begins flashing indicating it has been saved.
Note: If you attempt to enter an invalid Program Code the control will not save the new code, but will flash the
old code and this will be displayed. (The unit will NOT run with a Program Code of 00).
8.
Once the Program Code has been saved the Programming Mode is exited by closing the Refrigerator
door(s). If the new code is incorrect this process should be repeated after closing the Refrigerator door(s).
The Programming mode can be exited at any time by closing the Refrigerator Door(s).
Defrost Operation:
The Control Board adapts the compressor run time between defrosts to achieve optimum defrost intervals by
monitoring the length of time the defrost heater is on.
After initial power up, defrost interval is 4 hours compressor run time. Defrost occurs immediately after the 4
hours.
Note: Once unit is ready to defrost there is a 4 minute wait time prior to the beginning of the defrost cycle.
Optimum defrost is 15 minutes. Each additional minute the defrost thermostat remains closed, 1 hr. is
subtracted from the previous defrost interval. Each minute the thermostat opens prior to optimum defrost, it
extends the next defrost interval 1 hr. When defrost thermostat opens there is a 4-6 minute drip time before
compressor restarts or Control Board will terminate defrost at 25 minutes if defrost thermostat has not opened
and will reset the defrost interval to the 8 hr. minimum setting.
4 hours of continuous compressor run resets the next defrost interval to 8 hours and will initiate a defrost, if 8
hours of compressor run time has also occurred.
Forced Defrost Mode:
Power up Refrigeration mode will occur unless both the cold control and defrost terminator are open, in that
case the defrost mode will occur for 2 minutes.
The forced defrost function is performed using the refrigerator display and keypad. Enter the Forced Defrost
Mode by performing the following sequence of events:
1.
Hold the refrigerator door light switch closed.
2.
Press the Refrigerator Temperature Down
keypad 3 times consecutively.
Note: The 3 keystrokes must be consecutive and within 10 seconds.
February 2006
3
© 2006 Maytag Services
16026983
Control Board Troubleshooting
!
WARNING
To avoid risk of electrical shock that can cause death or severe personal injury, disconnect unit from power before
servicing unless tests require power. Discharge capacitors through a 10,000-ohm resistor before handling. Wires
removed during disassembly must be replaced on correct terminals to ensure proper grounding and polarization.
3. Release the refrigerator door light switch.
4. The control will display Fd to confirm entry into the Forced Defrost Mode.
Freezer
Refrigerator
F
5. Entry is confirmed by pressing the Refrigerator Down
key once more. The unit is off and in the
Defrost Mode.
Note: All control functions will be turned off (Compressor, Defrost, Evaporator Fan, the damper will
remain in its current position).
6. The control will default to the short run period test as shown here.
Freezer
Refrigerator
S
Note: You can toggle between the (S)hort and (L)ong test mode by pressing the Refrigerator UP
Long Test mode is used for factory test and should not be used in the field.
Freezer
Key.
Refrigerator
L
7. Once the desired mode is displayed, confirm the forced defrost by pressing the Refrigerator
down Key once. The defrost will begin immediately and the display will return to a normal
operating display with set point values.
Freezer
Refrigerator
4
4
8. Close the Refrigerator door(s). You are in the defrost mode.
Note: Forced Defrost mode can be exited at any time prior to step 7 by closing the Refrigerator Door(s).
Service Test Mode:
The service test functions are performed using the refrigerator display and keypad. Enter the Service Test
Mode by performing the following sequence of events:
1. Hold the refrigerator door light switch closed.
keypad 3 times consecutively.
2. Press the Refrigerator Temperature Up
Note: The 3 Keystrokes must be done consecutively and within 10 seconds.
3. Release the refrigerator door light switch.
4. The control will display SE to confirm entry into the service mode.
Freezer
Refrigerator
S
E
5. Entry to the Service Menu is confirmed by pressing the Refrigerator Up
6. The control will display its software version for 3 seconds.
Freezer
key once more.
Refrigerator
2
5
7. Following the software revision display the freezer display will read the first test number in the
diagnostic tree. The refrigerator display will be blank.
Freezer
Refrigerator
1
Note: All control functions will be turned off (Compressor, Defrost, Evaporator Fan, the damper will
remain in its current position).
8. You are now in the SERVICES TEST operational mode and may use the diagnostic tests.
The Service Test Mode can be exited at any time by closing the Refrigerator Door(s).
16026983
4
February 2006
© 2006 Maytag Services
Control Board Troubleshooting
!
WARNING
To avoid risk of electrical shock that can cause death or severe personal injury, disconnect unit from power before
servicing unless tests require power. Discharge capacitors through a 10,000-ohm resistor before handling. Wires
removed during disassembly must be replaced on correct terminals to ensure proper grounding and polarization.
Service Test 1 – Defrost Thermostat & Defrost Circuit Test
When selected this test will display the state of the defrost thermostat. In order to perform this test the defrost
heater will be energized. The test is activated and deactivated using the Refrigerator Up
key. Once activated,
this test must be deactivated to move to another test number. The Freezer Up
/ Down
keys allow
selection of the test to be performed.
This test also allows observation and measurement of proper defrost function. You can observe defrost heat and
voltages while the test is activated.
Freezer
Refrigerator
1
O
DEFROST THERMOSTAT OPEN
Freezer
Refrigerator
1
S
DEFROST THERMOSTAT SHORTED (CLOSED)
Service Test 2 – Compressor/Condenser Fan Test
When selected and activated this test will operate the Compressor/Condenser Fan circuit. You should evaluate
proper operation of the compressor and condenser fan. The Refrigerator Up
key will toggle between “O” / “F”
(ON & OFF) the compressor drive circuit. The test must be “deactivated” or in the OFF position to move to another
test selection.
Freezer
Refrigerator
2
O
Freezer
Refrigerator
2
F
OBSERVE COMPRESSOR & CONDENSER FAN FUNCTION
Service Test 3 – Evaporator/Freezer Fan Test
When selected and activated this test will operate the freezer fan. The Refrigerator Up
key will toggle
between “O” / “F” (ON & OFF) the fan drive circuit. You will have to inspect the fan for proper function. The test
must be “deactivated” or in the OFF position to move to another test selection.
Freezer
Refrigerator
3
O
Freezer
Refrigerator
3
F
OBSERVE FAN OPERATION
February 2006
© 2006 Maytag Services
5
16026983
Control Board Troubleshooting
!
WARNING
To avoid risk of electrical shock that can cause death or severe personal injury, disconnect unit from power before
servicing unless tests require power. Discharge capacitors through a 10,000-ohm resistor before handling. Wires
removed during disassembly must be replaced on correct terminals to ensure proper grounding and polarization.
Service Test 4 – Fresh Food Thermistor Test
When selected and activated this test will display Pass, Open, Short result for a test on the Fresh Food Thermistor
circuit as shown below. The test is activated and deactivated via the Refrigerator Up
key, and must be
deactivated to move to another test selection.
Freezer
Refrigerator
4
P
PASS RESULT
Freezer
Refrigerator
4
O
OPEN RESULT
Freezer
Refrigerator
4
S
SHORT RESULT
Service Test 5 – Freezer Thermistor Test
When selected this test will display Pass, Open, Short result for a test on the Freezer Thermistor circuit as
shown below. The test is activated and deactivated via the Refrigerator Up
key, and must be deactivated
to move to another test selection.
Freezer
Refrigerator
5
P
PASS RESULT
Freezer
Refrigerator
5
O
OPEN RESULT
Freezer
Refrigerator
5
S
SHORT RESULT
16026983
6
February 2006
© 2006 Maytag Services
Control Board Troubleshooting
!
WARNING
To avoid risk of electrical shock that can cause death or severe personal injury, disconnect unit from power before
servicing unless tests require power. Discharge capacitors through a 10,000-ohm resistor before handling. Wires
removed during disassembly must be replaced on correct terminals to ensure proper grounding and polarization.
Service Test 6 – Open Damper Test
When selected this test will indicate the current position “O” / “C” (OPEN / CLOSED) of the refrigerator damper. The
Refrigerator Up
key will toggle the damper open and closed. You must allow 1 minute for each attempt to
change the damper position. You should observe proper damper function.
Freezer
Refrigerator
6
O
Freezer
Refrigerator
6
C
OBSERVE DAMPER FUNCTION
! CAUTION
Adjustments of Service Test 7 or Service Test 8 will alter the performance of the unit.
Service Test 7 – FF Performance Adjustment
This test will allow adjustment of the control performance points. Each step will incrementally change the
Refrigerator performance warmer (towards 1) or colder (towards 9) as adjusted. The default value is 5.
/
Up/Down keys are used to adjust the Performance Offset value.
The refrigerator
WARMER Í(1 2 3 4 (5) 6 7 8 9) Î COLDER.
Freezer
Refrigerator
7
5
DEFAULT
Freezer
Refrigerator
7
6
COLDER
The last FF Performance Offset value displayed before leaving test 7 will be saved when the refrigerator door(s) is
closed.
Service Test 8 – FZ Performance Adjustment
This test will allow the adjustment of the control performance points. Each step will incrementally change the
Freezer performance warmer (towards 1) or colder (towards 9) as adjusted. The default value is 5.
/
Up/Down keys are used to adjust the Performance Offset value.
The refrigerator
WARMER Í(1 2 3 4 (5) 6 7 8 9) Î COLDER.
Freezer
Refrigerator
8
5
DEFAULT
Freezer
Refrigerator
8
4
WARMER
The last FZ Performance Offset value displayed before leaving test 8 will be saved when the refrigerator door(s) is
closed.
February 2006
© 2006 Maytag Services
7
16026983
Wiring Diagram
!
WARNING
To avoid risk of electrical shock that can cause death or severe personal injury, disconnect unit from power before
servicing unless tests require power. Discharge capacitors through a 10,000-ohm resistor before handling. Wires
removed during disassembly must be replaced on correct terminals to ensure proper grounding and polarization.
.
16026983
8
February 2006
© 2006 Maytag Services