Service Manual
Page 1
Ice and Water Bottom Mount Refrigerators This Base Manual covers general information Refer to individual Technical Sheet for improper service procedures done by qualified appliance technicians only. Service This manual is not limited to the following: Amana AFI2237AE* AFI2538AE* AFD25BCZX* AFD25WBZX* Maytag MFI2067AE* MFI2266AE* MFI2568AE* 16026312 February 2006 Maytag does not assume any responsibility for property damage or personal injury for information on specific models This manual includes, but is to be used by an unqualified person.
Ice and Water Bottom Mount Refrigerators This Base Manual covers general information Refer to individual Technical Sheet for improper service procedures done by qualified appliance technicians only. Service This manual is not limited to the following: Amana AFI2237AE* AFI2538AE* AFD25BCZX* AFD25WBZX* Maytag MFI2067AE* MFI2266AE* MFI2568AE* 16026312 February 2006 Maytag does not assume any responsibility for property damage or personal injury for information on specific models This manual includes, but is to be used by an unqualified person.
Service Manual
Page 3
... Mode 36 Defrost Operation 36 Forced Defrost Mode 36 Service Test Mode 37 Show Room Mode 40 Appendix A Owner's Manual A-1 ©2006 Maytag Services 16026312 3 ft 19 20, 22, 25 cu. ft Machine Compartment Air Flow Diagram 20 Water Dispenser Flow 21 Water Flow Schematic 22... Typical External Sweat Pattern 23 Troubleshooting Chart 24 System Diagnosis 27 Disassembly Procedures Door Removal Fresh Food Doors 30 Freezer Drawer 30 Refrigerator Compartment Upper Light Bulb Cover 30 Light Bulb Assembly 30 Light Bulb Sockets 30 Light Switches 30 Fresh Food Thermistor 31 Water ...
... Mode 36 Defrost Operation 36 Forced Defrost Mode 36 Service Test Mode 37 Show Room Mode 40 Appendix A Owner's Manual A-1 ©2006 Maytag Services 16026312 3 ft 19 20, 22, 25 cu. ft Machine Compartment Air Flow Diagram 20 Water Dispenser Flow 21 Water Flow Schematic 22... Typical External Sweat Pattern 23 Troubleshooting Chart 24 System Diagnosis 27 Disassembly Procedures Door Removal Fresh Food Doors 30 Freezer Drawer 30 Refrigerator Compartment Upper Light Bulb Cover 30 Light Bulb Assembly 30 Light Bulb Sockets 30 Light Switches 30 Fresh Food Thermistor 31 Water ...
Service Manual
Page 4
...before certifying unit as repaired and/or operational. After initial power up, defrost interval is on conditions changing in refrigerator. 4 16026312 ©2006 Maytag Services Note: Once unit is ready to defrost there is cooled and condensed into post-condenser loop which actuates ...compressor. Evaporator and Ice Box Fans are connected before attempting to evaporate. Refrigeration System Compressor forces high temperature vapor into fan ...
...before certifying unit as repaired and/or operational. After initial power up, defrost interval is on conditions changing in refrigerator. 4 16026312 ©2006 Maytag Services Note: Once unit is ready to defrost there is cooled and condensed into post-condenser loop which actuates ...compressor. Evaporator and Ice Box Fans are connected before attempting to evaporate. Refrigeration System Compressor forces high temperature vapor into fan ...
Service Manual
Page 5
... require power to a known good capacitor of 2. With power to restart after recovery, replace faulty compressor. ©2006 Maytag Services 16026312 5 Discharge capacitor by shorting capacitor terminals through a resistor. Operation test If voltage, capacitor, overload, and motor... winding tests do not have a run winding 2. Disconnect power to refrigerator. Place time delayed fuse with a resistor for resistance between attempting to multimeter, press start winding power interruption). If capacitor ...
... require power to a known good capacitor of 2. With power to restart after recovery, replace faulty compressor. ©2006 Maytag Services 16026312 5 Discharge capacitor by shorting capacitor terminals through a resistor. Operation test If voltage, capacitor, overload, and motor... winding tests do not have a run winding 2. Disconnect power to refrigerator. Place time delayed fuse with a resistor for resistance between attempting to multimeter, press start winding power interruption). If capacitor ...
Service Manual
Page 6
... • Shorted-needle moves to refrigerator. 2. Replace capacitor. • .... From condenser the refrigerant flows into a post...Check resistance across terminals with refrigerant. Condenser is a tube... Separate condenser from rest of refrigeration system and pressurize condenser up to... condenser is air cooled by refrigerant For minute leaks to evaporator and...through the drier to ambient. 1. Refrigerant flows through a resistor before attempting...terminals with a refrigerant and dry nitrogen ...pressure compressed gases in refrigeration systems condenser to surrounding ...
... • Shorted-needle moves to refrigerator. 2. Replace capacitor. • .... From condenser the refrigerant flows into a post...Check resistance across terminals with refrigerant. Condenser is a tube... Separate condenser from rest of refrigeration system and pressurize condenser up to... condenser is air cooled by refrigerant For minute leaks to evaporator and...through the drier to ambient. 1. Refrigerant flows through a resistor before attempting...terminals with a refrigerant and dry nitrogen ...pressure compressed gases in refrigeration systems condenser to surrounding ...
Service Manual
Page 7
... "C" and "NC" terminals Open Switch arm up "C" and "NC" terminals Closed "C" and "NO" terminals Open ©2006 Maytag Services 16026312 7 After a short time, current heats the resistor in the circuit through a resistor before certifying unit as repaired and/or... Ice Box fan motor Ice Box fan moves air across coil windings. Check resistance across Ice Maker and throughout refrigerator cabinet. 1. Left Refrigerator Light Switch Single pole, double throw switch completes circuit for troubleshooting information. Check resistance across terminals. To check...
... "C" and "NC" terminals Open Switch arm up "C" and "NC" terminals Closed "C" and "NO" terminals Open ©2006 Maytag Services 16026312 7 After a short time, current heats the resistor in the circuit through a resistor before certifying unit as repaired and/or... Ice Box fan motor Ice Box fan moves air across coil windings. Check resistance across Ice Maker and throughout refrigerator cabinet. 1. Left Refrigerator Light Switch Single pole, double throw switch completes circuit for troubleshooting information. Check resistance across terminals. To check...
Service Manual
Page 8
... shock, personal injury, or death, disconnect electrical power source to unit, unless test procedures require power to drier and break. 4. Refrigerant gas is under warranty, old drier must be connected. Recheck for safe disposal. 1. Opens and breaks circuit when thermostat senses preset ...high temperature. Defrost thermostat senses a preset low temperature and resets (closes). 8 16026312 ©2006 Maytag Services NOTE: Drier used in R134a sealed system. Applying heat to remove drier will allow desiccant beads to service. Do not leave...
... shock, personal injury, or death, disconnect electrical power source to unit, unless test procedures require power to drier and break. 4. Refrigerant gas is under warranty, old drier must be connected. Recheck for safe disposal. 1. Opens and breaks circuit when thermostat senses preset ...high temperature. Defrost thermostat senses a preset low temperature and resets (closes). 8 16026312 ©2006 Maytag Services NOTE: Drier used in R134a sealed system. Applying heat to remove drier will allow desiccant beads to service. Do not leave...
Service Manual
Page 9
... operation of motor. Condenser fan motor is controlled by 1. If motor does not operate check for voltage at motor. 3. between refrigerator and freezer 2. switch activates Auger Motor, Ice Box 3. Solenoid and Door Chute Motor. Use control board testing to check operation ... 2. 3. switch. Depressing dispenser switch 2. If no voltage at motor. If no voltage at heater replace Control Board. ©2006 Maytag Services 16026312 9 WARNING To avoid risk of motor. 2. Discharge capacitor through a resistor before certifying unit as repaired and/or operational. ...
... operation of motor. Condenser fan motor is controlled by 1. If motor does not operate check for voltage at motor. 3. between refrigerator and freezer 2. switch activates Auger Motor, Ice Box 3. Solenoid and Door Chute Motor. Use control board testing to check operation ... 2. 3. switch. Depressing dispenser switch 2. If no voltage at motor. If no voltage at heater replace Control Board. ©2006 Maytag Services 16026312 9 WARNING To avoid risk of motor. 2. Discharge capacitor through a resistor before certifying unit as repaired and/or operational. ...
Service Manual
Page 10
...valve (Schroeder valves). Every time sealed HFC134a system is repaired, drier filter must accompany warranty claim. 10 16026312 ©2006 Maytag Services Cut drier out of HFC134a systems. Verify equipment is compatible for large tube cutter. 3. WARNING To avoid risk of ...gauge • Process tube adaptor kit • Heat trap paste • ICI appliance grade HFC134a Drier Replacement Before opening refrigeration system, recover HFC134a refrigerant for HFC134a. Score capillary tube close to scatter. Remove drier from high heat. 6. Discharge capacitor through a 10,000 ohm...
...valve (Schroeder valves). Every time sealed HFC134a system is repaired, drier filter must accompany warranty claim. 10 16026312 ©2006 Maytag Services Cut drier out of HFC134a systems. Verify equipment is compatible for large tube cutter. 3. WARNING To avoid risk of ...gauge • Process tube adaptor kit • Heat trap paste • ICI appliance grade HFC134a Drier Replacement Before opening refrigeration system, recover HFC134a refrigerant for HFC134a. Score capillary tube close to scatter. Remove drier from high heat. 6. Discharge capacitor through a 10,000 ohm...
Service Manual
Page 11
...of personal injury, do not allow water vapor to contact eyes or skin. ! CAUTION To avoid risk of refrigeration system, never leave lines open to compressor windings, immediately disconnect (unplug) test cord from compressor terminals. 4.Attach... Attaching Capacitor for unit under test. If compressor runs when direct wired, it is not hermetically sealed. Refrigerant Precautions ! CAUTION To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source ... runs after recovery, replace faulty compressor. ©2006 Maytag Services 16026312 11
...of personal injury, do not allow water vapor to contact eyes or skin. ! CAUTION To avoid risk of refrigeration system, never leave lines open to compressor windings, immediately disconnect (unplug) test cord from compressor terminals. 4.Attach... Attaching Capacitor for unit under test. If compressor runs when direct wired, it is not hermetically sealed. Refrigerant Precautions ! CAUTION To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source ... runs after recovery, replace faulty compressor. ©2006 Maytag Services 16026312 11
Service Manual
Page 12
...of nitrogen, through gauge manifold, to service. Connect cylinder of compressor and liquid line strainer. 2. Stop unit operation (turn refrigerator off). 2. Discharge capacitor through capillary tube. Allow pressure to repair by the compressor and motor reacts chemically with halide or ...to breakdown of motor winding insulation and corrosion of refrigeration systems. Free oxygen will explode on contact with oil. Open valves on areas leak detector cannot reach or reliably test. 12 16026312 ©2006 Maytag Services If leak is charged), unbraze joint, clean...
...of nitrogen, through gauge manifold, to service. Connect cylinder of compressor and liquid line strainer. 2. Stop unit operation (turn refrigerator off). 2. Discharge capacitor through capillary tube. Allow pressure to repair by the compressor and motor reacts chemically with halide or ...to breakdown of motor winding insulation and corrosion of refrigeration systems. Free oxygen will explode on contact with oil. Open valves on areas leak detector cannot reach or reliably test. 12 16026312 ©2006 Maytag Services If leak is charged), unbraze joint, clean...
Service Manual
Page 13
... cause future problems. ©2006 Maytag Services 16026312 13 Total restriction on low side, suction pressure will be higher than 10 minutes, a restriction exists in system for correct refrigerant charge. Inspect condenser side of refrigerant. Refer to specification. Restrictions Symptoms ...for other possible causes of partial restriction. Correct kink and repeat step 2. 4. Check for kinks in sealed system. Recover refrigerant in refrigeration line which is consistent throughout, go to step 5. 3. Remove power from unit. ! CAUTION To avoid risk of ...
... cause future problems. ©2006 Maytag Services 16026312 13 Total restriction on low side, suction pressure will be higher than 10 minutes, a restriction exists in system for correct refrigerant charge. Inspect condenser side of refrigerant. Refer to specification. Restrictions Symptoms ...for other possible causes of partial restriction. Correct kink and repeat step 2. 4. Check for kinks in sealed system. Recover refrigerant in refrigeration line which is consistent throughout, go to step 5. 3. Remove power from unit. ! CAUTION To avoid risk of ...
Service Manual
Page 14
... produce a good vacuum if oil in increased power requirements and reduced performance. Evacuation and Charging ! To avoid risk of sealed refrigeration system is not contaminated. 6. Before opening of tubes not through line piercing valve. 2. Connect high side line to compressor process... motor windings and parts, causing premature breakdown. opening system, evaporator coil must be at step 1. 14 16026312 ©2006 Maytag Services Thermistor Vacuum Gauge Low Side Gauge High Side Gauge E Valve D Valve Drier/Process Tube Compressor Charging Hose Compressor Process ...
... produce a good vacuum if oil in increased power requirements and reduced performance. Evacuation and Charging ! To avoid risk of sealed refrigeration system is not contaminated. 6. Before opening of tubes not through line piercing valve. 2. Connect high side line to compressor process... motor windings and parts, causing premature breakdown. opening system, evaporator coil must be at step 1. 14 16026312 ©2006 Maytag Services Thermistor Vacuum Gauge Low Side Gauge High Side Gauge E Valve D Valve Drier/Process Tube Compressor Charging Hose Compressor Process ...
Service Manual
Page 15
... remove charging hose. Pinch-off drier process tube. Disconnect power. Inaccurately charged system will cause future problems. Refrigerant Charge Refrigerant charge in units. Close valve "D" to be connected. Factory charges are connected before attempting to low side ... NOTE: Do not use captured or recycled refrigerant in all ground wires are shown on dial-a-charge cylinder for refrigerant leaks. ©2006 Maytag Services 16026312 15 If pressure equalizes, open valve "D". Captured or recycled refrigerant voids any warranty. Service Procedures ! To ...
... remove charging hose. Pinch-off drier process tube. Disconnect power. Inaccurately charged system will cause future problems. Refrigerant Charge Refrigerant charge in units. Close valve "D" to be connected. Factory charges are connected before attempting to low side ... NOTE: Do not use captured or recycled refrigerant in all ground wires are shown on dial-a-charge cylinder for refrigerant leaks. ©2006 Maytag Services 16026312 15 If pressure equalizes, open valve "D". Captured or recycled refrigerant voids any warranty. Service Procedures ! To ...
Service Manual
Page 16
...than 10 minutes. Discharge capacitor through a 10,000 ohm resistor before certifying unit as repaired and/or operational. HFC134a is alternative refrigerant for more than HFC134a. Health, Safety, and CFC12 HFC134a Handling Allowable overall 1,000 ppm Same exposure limit Vapor exposure to ... moisture from system surfaces by using Towerdraw E610 evaporating oil, part # R0157532, when flaring, swaging, or cutting refrigeration tubing. 16 16026312 ©2006 Maytag Services Do not leave compressor or system open to system processing materials, such as CFC12, etc. HFC134a has an...
...than 10 minutes. Discharge capacitor through a 10,000 ohm resistor before certifying unit as repaired and/or operational. HFC134a is alternative refrigerant for more than HFC134a. Health, Safety, and CFC12 HFC134a Handling Allowable overall 1,000 ppm Same exposure limit Vapor exposure to ... moisture from system surfaces by using Towerdraw E610 evaporating oil, part # R0157532, when flaring, swaging, or cutting refrigeration tubing. 16 16026312 ©2006 Maytag Services Do not leave compressor or system open to system processing materials, such as CFC12, etc. HFC134a has an...
Service Manual
Page 17
...ester oil and pressurized with fluoride based flux. Oxygen may result in compressor is vital to steel joints). ©2006 Maytag Services 16026312 17 Connections to Technical Data Sheet "Temperature Relationship Chart" for operating watts, test points, and temperature relationship... with temperature test to confirm proper operation. • Suction and head pressures are listed on contact with testing. • Refrigerator must operate minimum of personal injury or property damage, take necessary precautions against high temperatures required for more than 10 minutes. Normally...
...ester oil and pressurized with fluoride based flux. Oxygen may result in compressor is vital to steel joints). ©2006 Maytag Services 16026312 17 Connections to Technical Data Sheet "Temperature Relationship Chart" for operating watts, test points, and temperature relationship... with temperature test to confirm proper operation. • Suction and head pressures are listed on contact with testing. • Refrigerator must operate minimum of personal injury or property damage, take necessary precautions against high temperatures required for more than 10 minutes. Normally...
Service Manual
Page 18
ft. Bottom Mount Refrigerant Flow Diagram 18 16026312 ©2006 Maytag Services Refrigerant Flow CAPILLARY TUBE Note: Capillary Tube and Suction Tube are located under Fresh SUCTION Food floor. TUBE EVAPORATOR CONDENSER COMPRESSOR DISCHARGE TUBE PROCESS TUBE POST CONDENSER TUBE DRYER 20, 22, 25 cu.
ft. Bottom Mount Refrigerant Flow Diagram 18 16026312 ©2006 Maytag Services Refrigerant Flow CAPILLARY TUBE Note: Capillary Tube and Suction Tube are located under Fresh SUCTION Food floor. TUBE EVAPORATOR CONDENSER COMPRESSOR DISCHARGE TUBE PROCESS TUBE POST CONDENSER TUBE DRYER 20, 22, 25 cu.
Service Manual
Page 23
Typical External Sweat Pattern #1 Sweat TOP Classification of Condensation 1 = Haze or Fog 2 = Beading 3 = Beads or small drops 4 = Drops running together Conditions after 4 hour Laboratory Sweat Test: Ambient 90 dF Relative humidity 84% Refrigerator Temp. 40 dF Freezer Temp. 0 dF ©2006 Maytag Services 16026312 23
Typical External Sweat Pattern #1 Sweat TOP Classification of Condensation 1 = Haze or Fog 2 = Beading 3 = Beads or small drops 4 = Drops running together Conditions after 4 hour Laboratory Sweat Test: Ambient 90 dF Relative humidity 84% Refrigerator Temp. 40 dF Freezer Temp. 0 dF ©2006 Maytag Services 16026312 23
Service Manual
Page 24
... for blown fuse or tripped breaker. Poor door seal Refrigerator airflow Faulty condenser fan or evaporator fan Faulty compressor Level cabinet. Replace if necessary. Replace compressor. 24 16026312 ©2006 Maytag Services Each symptom is opening Overloading of electrical shock, personal... attempting to unit Check for proper voltage. Perform compressor direct wiring test. Replace if necessary. Replace if faulty. Refrigerator section too warm Faulty motor or freezer temperature control Faulty relay Faulty compressor Faulty overload Excessive door opening by a...
... for blown fuse or tripped breaker. Poor door seal Refrigerator airflow Faulty condenser fan or evaporator fan Faulty compressor Level cabinet. Replace if necessary. Replace compressor. 24 16026312 ©2006 Maytag Services Each symptom is opening Overloading of electrical shock, personal... attempting to unit Check for proper voltage. Perform compressor direct wiring test. Replace if necessary. Replace if faulty. Refrigerator section too warm Faulty motor or freezer temperature control Faulty relay Faulty compressor Faulty overload Excessive door opening by a...
Service Manual
Page 25
...for low side leak. Discharge capacitor through a resistor before certifying unit as required. ©2006 Maytag Services 16026312 25 Symptom Refrigerator section too cold Freezer and refrigerator sections too warm Freezer section too cold Unit runs continuously Unit runs continuously. Repair, evacuate and ...set too cold Dirty condenser or obstructed grille Poor door seal Faulty condenser fan or evaporator fan Faulty control Refrigerant shortage or restriction Refrigerant overcharge Air in contact with cabinet, other tubing, or other metal Drip pan vibrating Fan hitting another ...
...for low side leak. Discharge capacitor through a resistor before certifying unit as required. ©2006 Maytag Services 16026312 25 Symptom Refrigerator section too cold Freezer and refrigerator sections too warm Freezer section too cold Unit runs continuously Unit runs continuously. Repair, evacuate and ...set too cold Dirty condenser or obstructed grille Poor door seal Faulty condenser fan or evaporator fan Faulty control Refrigerant shortage or restriction Refrigerant overcharge Air in contact with cabinet, other tubing, or other metal Drip pan vibrating Fan hitting another ...