Maytag MTB1502ARQ Service Manual Download Page 1

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15 Cubic Foot
Top Mount
Refrigerators

This Base Manual covers general information

Refer to individual Technical Sheet

for information on specific models

This manual includes, but is

not limited to the following:

Amana
ATB1504ARQ
ATB1504ARW

Maytag
MTB1502ARQ
MTB1502ARW
MTB1504ARQ
MTB1504ARW

Magic Chef
CTB1502ARQ
CTB1502ARW
CTL1502AEW
CTN1502AEW

Service

This manual is to be used by qualified appliance
technicians only. Maytag does not assume any
responsibility for property damage or personal
injury for improper service procedures done by
an unqualified person.

16022675

December 2003

Summary of Contents for MTB1502ARQ

Page 1: ...to the following Amana ATB1504ARQ ATB1504ARW Maytag MTB1502ARQ MTB1502ARW MTB1504ARQ MTB1504ARW Magic Chef CTB1502ARQ CTB1502ARW CTL1502AEW CTN1502AEW Service This manual is to be used by qualified a...

Page 2: ...ING REPAIRS WARNING To avoid risk of severe personal injury or death disconnect power before working servicing on appliance to avoid electrical shock To locate an authorized servicer please consult yo...

Page 3: ...ompressor 17 Compressor Testing Procedures 17 Brazing 17 Refrigerant Flow 18 Table of Contents CabinetAir Flow 19 Troubleshooting Chart 20 22 System Diagnosis Symptoms of an Overcharge 23 Symptoms of...

Page 4: ...is information is found on the serial plate located on front upper right hand corner of foodliner or on some models exterior back of the outer casing An explanation of coding contained in Type positio...

Page 5: ...apacitor if present by shorting terminals through a resistor 3 Remove compressor leads and use an ohmmeter set on highest scale 4 Touch one lead to compressor body clean point of contact and other pro...

Page 6: ...r is maintained Condenser is air cooled by condenser fan motor If efficiency of heat transfer from condenser to surrounding air is impaired condensing temperature becomes higher High liquid temperatur...

Page 7: ...and cut out temperatures at middle setting Refer to tech sheet for model being serviced for expected temperatures Check control contacts are opening by disconnecting electrical leads to control and t...

Page 8: ...emove drier 5 Apply heat trap paste on post condenser tubes to protect grommets from high heat 6 Unbraze remaining part of drier Remove drier from system 7 Discard drier in safe place Do not leave dri...

Page 9: ...eck for leaks Evaporator heater defrost Activated when defrost thermostat defrost timer and freezer control complete circuit through heater Check resistance across heater To check defrost system 1 The...

Page 10: ...compatible with HFC134a and ester oil system Equipment must be exclusively used for HFC134a Exclusive use of equipment only applies to italic items Evacuation pump Check with vacuum pump supplier to v...

Page 11: ...essor Run lead on test cord attaches to M terminal on compressor Service Procedures C R S Fuses Capacitor Compressor Switch To AC supply Attaching Capacitor for Compressor Test 5 Connect a known good...

Page 12: ...efrigerant leaks are best detected with halide or electronic leak detectors Testing Systems Containing a Refrigerant Charge 1 Stop unit operation turn refrigerator off 2 Holding leak detector explorin...

Page 13: ...er than normal head pressure and wattage while low side is being pumped out Testing for Restrictions To determine if a restriction exists 1 Attach gauge and manifold between suction and discharge side...

Page 14: ...closed open all other valves and start vacuum pump Vacuum Pump 6 cm Copper Tubing Compressor Compressor Process Tube Charging Hose Thermistor Vacuum Gauge Low Side Gauge E Valve B D Valve High Side Ga...

Page 15: ...Start compressor and draw remaining refrigerant from charging hoses and manifold into compressor through compressor process tube 6 To check high side pinch off drier process tube Close valve D to hig...

Page 16: ...Service Information HFC134a is alternative refrigerant for CFC12 HFC134a has an ozone depletion potential ODP factor of 0 0 and a global warming potential GWP factor of 0 27 HFC134a is not flammable...

Page 17: ...nimum of 20 minutes after thermocouples are installed Turn control to colder to obtain required on time Wattage reading must be recorded in conjunction with temperature test to confirm proper operatio...

Page 18: ...16022675 18 2003 Maytag Appliances Company Refrigerant Flow 15 cu ft Top Mount Refrigerant Flow Diagram...

Page 19: ...2003 Maytag Appliances Company 19 16022675 Cabinet Air Flow 15 cu ft Top Mount Cabinet Air Flow Diagram...

Page 20: ...ng Replace if necessary Excessive door opening Consumer education Overloading of shelves Consumer education Warm or hot foods placed in cabinet Consumer education Cold control set too warm Set control...

Page 21: ...ion Repair evacuate and recharge system Refrigerant overcharge Check for overcharge Evacuate and recharge system Unit runs continuously Air in system Check for low side leak Repair evacuate and rechar...

Page 22: ...protector open Check overload protector for continuity If open replace overload NOTE Ensure overload compressor are below trip temperature before testing Faulty compressor motor capacitor some compre...

Page 23: ...to a failure of the defrost system the refrigerant will flood out and cause the suction line to frost or sweat The cause of this problem should be corrected rather than to purge refrigerant from the s...

Page 24: ...er evacuate and recharge with the specified refrigerant charge If the unit performs normally three possibilities exist 1 refrigerant loss 2 partially restricted drier filter and 3 moisture in system I...

Page 25: ...ad pressure will be higher as the ambient temperature raises Refrigerators installed in ambient temperatures lower than 55 F will not perform as well because the pressures within the system are genera...

Page 26: ...door on a padded surface to prevent damage to finish 2 If clearance requirements so dictate remove center and lower door hinges a Remove screws from center hinge bracket Remove and retain bracket scre...

Page 27: ...lls should be clear of anything that will obstruct removal of back panel 1 Remove 4 screws from Evaporator Cover 2 Pull forward to reveal wiring disconnect harness plug attached to rear wall 3 Remove...

Page 28: ...e compartment cover 2 Unplug wiring harness connector for the fan motor 3 On backside of fan motor screws secure the motor to its brackets Remove those screws 4 Note which side of fan blade is front a...

Page 29: ...Appendix A 2003 Maytag Appliances Company A 1 16022675...

Page 30: ...make and or break connections between the electrical contacts controlling icemaker operations Design of the ice maker allows testing of all components without removing the ice maker or having to acce...

Page 31: ...heater has not failed NOTE Make sure freezer temperature is cold enough to close the bimetal thermostat MODULE OHMMETER CHECKS NO POWER TO ICE MAKER EJECTOR BLADES IN END OF CYCLE POSITION TEST POINTS...

Page 32: ...ly align D shape of ejector shaft with D shaped socket in module cam 8 Remove fill cup Finally if desired remove thermal fuse clip and ice maker bracket NOTE New fill cups are molded with two break ou...

Page 33: ...clockwise decreases fill time turning screw counterclockwise increases fill time One half turn equals 20 cc or 1 2 seconds A full turn equals 40 cc or 2 4 seconds CAUTION Maximum adjustment is one fu...

Page 34: ...lution ice maker is 17 3 F 8 1 C Obviously the ice will be well frozen when those temperatures are achieved But cycling time is slow if freezer temperature is not cold enough to achieve those temperat...

Page 35: ...re Open heater circuit Replace ice maker Closed thermostat Replace ice maker Damaged heater tulips on module Replace ice maker Clogged water valve Replace water valve No power to water valve Trace pow...

Page 36: ...ker Fill volume of water excessive Adjust screw on module change water valve Redirect air flow away from ice maker thermostat Improper freezer air flow Thermostat out of calibration Insufficient water...

Page 37: ...Appendix B 2003 Maytag Appliances Company B 1 16022675...

Page 38: ...mperature Controls 5 Looking Inside 6 7 Ice Service 8 Food Storage Tips 9 11 Storing the Refrigerator 12 Care Cleaning 12 13 Troubleshooting 14 16 Guide d utilisation et d entretien 18 Gu a de uso y C...

Page 39: ...pecifically recommended in Use Care Guide or published user repair instructions Do not attempt service if instructions are not understood or if they are beyond personal skill level 12 Always disconnec...

Page 40: ...e power cord Do not use an adapter plug Power supply cord with three prong grounding cord Grounding type wall receptacle SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE To reduce risk of injury or death...

Page 41: ...ckwise to lower a cabinet corner Front Base Grille The front base grille was packaged inside the refrigerator for shipment and should be installed after the refrigerator has been leveled To Install Us...

Page 42: ...plug button s from tops of freezer and refrigerator doors and replace them on the opposite side 11 Remove screw hole plugs from top of cabinet and replace on the opposite side 12 Remove washers and st...

Page 43: ...the Temperature Controls 24 hours after adding food you may decide that one or both compartments should be colder or warmer If so adjust the control s as indicated in the following table Except when...

Page 44: ...ilt the drawer up slightly and pull it out To Reinstall With the drawer tilted up slightly align the drawer in the tracks and slide in The Crisper Top serves as the lower refrigerator shelf To Remove...

Page 45: ...out Freezer Compartment To avoid personal injury or property damage Never attempt to adjust a shelf when it is loaded with food Confirm that shelf is secure prior to loading items onto it CAUTION Som...

Page 46: ...with water when the freezer reaches the proper temperature Some ice makers are equipped with an adjustable sensor arm that allows you to adjust the amount of ice in your ice storage tray for times wh...

Page 47: ...heese cottage cheese cream sour cream or yogurt when mold appears Dairy Food Most dairy foods such as milk yogurt sour cream and cottage cheese have freshness dates on their cartons for appropriate le...

Page 48: ...mmended Not recommended Not recommended 4 6 months May become crumbly Not recommended 9 12 months 8 months cooked 6 months whole peeled Not recommended 6 months 1 month whole Not recommended 6 12 mont...

Page 49: ...months 1 2 months 1 2 months 4 6 months 4 months 1 2 months 1 2 months 4 6 months 1 month STORAGE TIPS Keep in original packaging for refrigeration Place in the Meat and Cheese Drawer When freezing l...

Page 50: ...is located under the top of the refrigerator compartment Unscrew the light bulb and replace Moving When moving follow instructions listed in Vacations In addition remove and carefully pack any items...

Page 51: ...eaken the paint Do not use scouring pads powdered cleansers bleach or cleaners containing bleach These products can scratch and erode the paint finish Do not wax plastic or vinyl parts Routine cleanin...

Page 52: ...due to contraction or expansion of the materials in the freezer area DEFROST HEATER During the automatic defrost cycle a sizzling sound may be heard as water droplets come into contact with the defros...

Page 53: ...eak floor Odor producing foods not covered Normal noise Cabinet not level Control set too warm Prolonged door openings Room temperature less than 55 F Products with high sugar content may not harden c...

Page 54: ...taste Contact local water treatment company Wrap foods tightly Wipe trays with vinegar soaked cloth until clean Dump old ice cubes Normal Minimize door openings Check to see if something is preventin...

Page 55: ...17 Notes...

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