Maytag MBF1956HEB User Manual

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Service Specifications Bottom Mount RefrigeratorTechnical Information
ABB1924DEB ABB1924DEB0, ABB1924DEQ ABB1924DEQ0, ABB1924DEW ABB1924DEW0,
ABB1927DEB ABB1927DEB0, ABB1927DEQ ABB1927DEQ0, ABB1927DES ABB1927DES0,
ABB1927DEW ABB1927DEW0, ABB192ZDEB ABB192ZDEB0, ABB192ZDEQ ABB192ZDEQ0,
ABB192ZDEW ABB192ZDEW0, ABB222ZDEB ABB222ZDEB0, ABB222ZDEQ ABB222ZDEQ0,
ABB222ZDES ABB222ZDES0, ABB222ZDEW ABB222ZDEW0, ABB2527DEB ABB2527DEB0,
ABB2527DEQ ABB2527DEQ0, ABB2527DEW ABB2527DEW0, MBB1956HEB MBB1956HEB0,
MBB1956HEQ MBB1956HEQ0, MBB1956HES MBB1956HES0, MBB1956HEW MBB1956HEW0,
MBF1956HEB MBF1956HEB0, MBF1956HEQ MBF1956HEQ0, MBF1956HEW MBF1956HEW0
!
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.
Freeze
r
Refri
g
erator
F
Due to a possibility of personal injury or property damage, always contact an authorized technician for
service or repair of this refrigerator.
5. Entry is confirmed by pressing the Refrigerator Down
key once more. The unit is off and in the Defrost
Mode.
CAUTION
!
Note: All control functions will be turned off (Compressor, Defrost, Evaporator Fan, the damper will
remain in its current position)
All safety information must be followed as provided in Service Manual 16022769.
6. The control will default to the short run period test as shown here
Freeze
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Refri
g
erato
r
S
!
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.
Note: You can toggle between the (S)hort and (L)ong test mode by pressing the Refrigerator UP
Key.
Long Test mode is used for factory test and should not be used in the field.
Freezer Refri
g
erator
L
No-Load Performance, Controls in Normal Position
Kw/24 hr ±0.4
Percent Run Time
±10%
Cycles/24 hr
±25%
Refrigerator Center
Compartment
Average Food
Temperature ±3°F
Freezer Compartment
Average Food
Temperature ±3°F
Ambient °F 70° 90° 110° 70° 90° 110° 70° 90° 110° 70° 90° 110° 70° 90° 110°
19 cu ft .8 1.4 2.0 26 45 60 40 35 25 38 36 35 0 0 0
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.
Freeze
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Refri
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erator
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).
Temperature Relationship Test Chart
Evaporator
Outlet
±3°F
Evaporator
Inlet
±3°F
Suction Line
±7°F
Average Total
Wattage ±10%
Suction
Pressure
±2 PSIG
Head Pressure
± 5 PSIG
Ambient °F 70° 90° 70° 90° 70° 90° 70° 90° 70° 90° 70° 90°
19 cu ft -20 -17 -20 -17 85 105 120 125 0 1 83 135
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.
2. Press the Refrigerator Temperature Up
keypad 3 times consecutively.
Schematic
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.
Freeze
r
Refri
erator
S
E
5. Entry to the Service Menu is confirmed by pressing the Refrigerator Up
key once more.
6. The control will display its software version for 3 seconds.
Freezer Ref
2
ri
g
erato
r
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
Freeze
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Re
1
fri
g
erator
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).
April 2004 4 16023096 April 2004 1 16023096
© 2004 Maytag Services © 2004 Maytag Services
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Summary of Contents

Page 1 - Schematic

Service Specifications Bottom Mount RefrigeratorTechnical Information ABB1924DEB ABB1924DEB0, ABB1924DEQ ABB1924DEQ0, ABB1924DEW ABB1924DEW0, A

Page 2 - Freezer Refri

Component Specifications Service Specifications !WARNING To avoid risk of electrical shock that can cause death or severe personal injury, disconnect

Page 3

Wiring Diagram Service Specifications April 2004 8 16023096 April 2004 5 16023096 © 2004 Maytag Services © 2004 Maytag Services !WARNING!

Page 4 - DEFAULT

Service Specifications Service Specifications April 2004 6 16023096 4 7 16023096 © 2004 Maytag Services © 2004 Maytag Services April 200The

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