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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.

18 & 21
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:

ATB1821AR*
ATB1830AR*
ATB1836AR*
ATB1838AE*
ATB1832AR*
ATB2130AR*
ATB2132AR*
ATB2136AR*
ATB2138AR*
ATF2136AR*
ATF2138AR*
CTB1821AR*
CTN1821AE*
CTL1821AE*
CTB2121AR*
CTF2126AR*
MTB1891AR*
MTB1893AR*
MTB1895AE*
MTB2193AR*
MTB2195AR*
MTF2193AR*
MTF2195AE*

16025860

Replaces 16023446

January 2005

Summary of Contents for MTB1891AR series

Page 1: ...erators 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 ATB1821AR ATB1830AR...

Page 2: ...AIRS 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 your tele...

Page 3: ...eplacement Service Compressor 17 Compressor Testing Procedures 17 Refrigerant Flow 18 Cabinet Air Flow 19 Troubleshooting Chart 20 22 System Diagnosis Symptoms of an Overcharge 23 Symptoms of Refriger...

Page 4: ...ion 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 position is shown...

Page 5: ...ower to refrigerator 2 Discharge capacitor 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 cl...

Page 6: ...air flow over condenser is maintained Condenser is air cooled by condenser fan motor If efficiency of heat transfer from condenser to surrounding air is impaired condensing temperature will increase...

Page 7: ...Check for proper calibration with thermocouple capillary in air supply well by recording cut in and cut out temperatures at middle setting Refer to tech sheet for model being serviced for expected tem...

Page 8: ...ndenser inlet tube joint to drier 4 Remove 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...

Page 9: ...nitrogen combination 2 Recheck for leaks Evaporator heater defrost Activated when defrost thermostat defrost timer and freezer control complete circuit through heater Check resistance across heater To...

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Page 20: ...sary Faulty relay Check relay Replace if necessary Faulty compressor Check compressor motor windings for opens shorts Perform compressor direct wiring test Replace if necessary Unit does not operate F...

Page 21: ...ture control Dirty condenser or obstructed grille Check condenser and grille Clean Poor door seal Level cabinet Adjust hinges Replace gasket Interior light remains on Check switch Replace if necessary...

Page 22: ...connections Repair as necessary Frost or ice on evaporator Refrigerant shortage or restriction Check for leak or restriction Repair evacuate and recharge system Loose wire or thermostat connections C...

Page 23: ...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 sytem...

Page 24: ...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 If...

Page 25: ...essure 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 generally r...

Page 26: ...Set door on a padded surface to prevent damage to finish 6 Remove and retain center hinge pin and all plastic shims Note number and location of shims as you do so Fresh Food Door 1 Pull tape off fres...

Page 27: ...to reassemble Cold Control 1 After following procedures 1 6 on removing light bulb assembly 2 Disconnect wires from Cold Control 3 Release Cold Control by pushing down on the tabs that hold it in the...

Page 28: ...e drip pan may be full of water when steps 1 thru 2 are performed Remove Condensate drip pan to prevent spillage Condensate Drain Pan 1 Remove Toe Grill 2 Drain pan is then visible and can be unsnappe...

Page 29: ...Appendix A 2005 Maytag Services A 1 16025860...

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: ...YCLE POSITION TEST POINTS COMPONENT MODULE POSITION OHMS L H Mold Heater Attached to support 264 L M Motor Separated from heater 16 100 MODULE VOLTAGE CHECKS WITH METER OR TEST LIGHT POWER TO ICE MAKE...

Page 32: ...b Using ordinary pliers on new fill cup break out fill slot required by your application c Mount new fill cup and reassemble ice maker Break out appropriate tab to make slot for fill tube Water Fill A...

Page 33: ...cubes If mineral content or sand is a problem the screen in the fill valve can clog and restrict water flow A particle of sand can prevent the valve from seating properly Symptoms of clogging include...

Page 34: ...ould be caused by excessive heat Where overheating is the problem replacement of the wiring harness is a temporary solution The ice maker should also be replaced CAUTION To minimize risk of property d...

Page 35: ...en 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 power to...

Page 36: ...ill 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 to i...

Page 37: ...B 1 Appendix B...

Page 38: ...2 Installation 3 6 Temperature Controls 7 Looking Inside 6 7 Ice Service 8 9 Food Storage Tips 11 13 Storing the Refrigerator 14 Care Cleaning 14 15 Tr oubleshooting 16 18 Warranty Service 19 Refrige...

Page 39: ...e prong grounding plug Grounding type wall receptacle To reduce risk of injury or death follow basic precautions including the following IMPORTANT Child entrapment and suffocation are not problems of...

Page 40: ...specifically recommended in Use Care Guide or published user repair instructions Do not attempt service if instructions are not under stood or if they are beyond personal skill level 13 Always disconn...

Page 41: ...e round openings in the cabinet and push each end in until the grille locks into place To remove this style of base grille grasp both ends and pull straight out Screw on style Use a Phillips screwdriv...

Page 42: ...reezer door and secure it on the opposite side 10 With a putty knife pry out the plug button s from tops of freezer and refrigerator doors and replace them on the opposite side 11 Remove screw hole pl...

Page 43: ...dle at an angle align it with the mounting stud on the door 2 Pull the handle down at an angle and rotate it so the holes in the bottom of the handle line up with the holes in the bottom of the freeze...

Page 44: ...efore placing refrigerator into final position to check and correct any water leaks Recheck for leaks after 24 hours Verify the copper tubing under the sleeve is smooth and free from defects Do not re...

Page 45: ...od control to next higher setting Adjust fresh food control to next lower setting Adjust freezer control to next colder setting Adjust freezer control to next warmer setting Set fresh food control to...

Page 46: ...t the crisper top back into the cabinet Position the rear and sides of the shelf on the supports and let the crisper top settle into place Select models are equipped with wire or glass full width shel...

Page 47: ...to full extension Tilt up the front of rack and pull straight out To Install Insert rack into frame rails and push back into place Tall Bottle Retainer Snugger select models The Tall Bottle Retainer...

Page 48: ...n The ice maker will fill 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...

Page 49: ...t cheese 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...

Page 50: ...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 months 8 10...

Page 51: ...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 52: ...mage due to improper disconnection and drainage may cause mold mildew growth WARNING If using an automatic ice maker discard first two or three ice harvests when refrigerator is put back into service...

Page 53: ...s or polish cleaners to clean the refrigerator interior Dry thoroughly Do not wash in automatic dishwasher Mild detergent and warm water Mild liquid sprays Vacuum cleaner attachment Cleaning brush Par...

Page 54: ...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 55: ...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 13 C Products with high sugar content may not har...

Page 56: ...efore storing Foods not stored properly WHAT TO DO Adjust sensor arm down to ON position Level unit see page 3 Connect water supply or clear obstructions Adjust freezer temperature control see page 7...

Page 57: ...From the original retail purchase date any part which fails in normal home use will be repaired or replaced free of charge Ice Maker When purchased with the refrigerator and installed by the dealer th...

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