7:00 AM to 7:00 PM Central Time Monday through Friday This manual is designed to be used by Authorized Service Personnel only. Sub-Zero Freezer Co., Inc. assumes no responsibility for any repairs made on Sub-Zero refrigera- tion units by anyone other than Authorized Service Technicians.
GENERAL INFORMATION IMPORTANT SAFETY INFORMATION WARNING Indicates that hazards or unsafe practices At right are the Product Safety Labels used in could result in severe personal injury or death. this manual. The “Signal Words” used are WARNING or CAUTION. CAUTION Below the Product Safety Labels is a descrip- Indicates hazards or unsafe practices could tion of the precautions to be taken when the sig-...
COMPONENT INFORMATION SECTION 2 COMPONENT INFORMATION...
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Door gaskets control panel at the top of the compartment. This sensor activates the lights and door alarm. The door gaskets on a 700 Series are pressed into a retaining channel in the door liner (Figure 2-1). Figure 2-1. Door Gaskets...
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COMPONENT INFORMATION Drawer Removal and Installation CAUTION On 700BR and 700BF/I, the top drawer has a control cable that must be disconnected before drawer removal. 1. Base-Unit Top Drawer Removal: a. Pull top drawer forward 6” to 10”, lift up off of the pins at front.
COMPONENT INFORMATION ELECTRONIC CONTROL SYSTEM Models 700TR, 700TC/I, 700TF/I The 700 Series electronic control system consists of a control board and a display board. The con- trol board includes the microprocessor relays, low voltage transformers, electrical connections and an ZONE...
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COMPONENT INFORMATION 2. To open the upper control panel front, grasp the Models 700BR, 700BF/I outer top corners and pull down. 3. Disconnect the leads supplying power to the control panel. Remove the three front mount- ing screws. The center screw is the ground screw (Figure 2-9).
COMPONENT INFORMATION CONTROL BOARD/MICROPROCESSOR Models 700TR, 700TC/I, 700TF/I The control board contains the microprocessor which processes information throughout the rest of the cabinet, through thermistors, wiring and relays. The control board is also equipped with terminals to test for failed or failing components. For proper testing, please refer to the Troubleshooting Guide.
COMPONENT INFORMATION ZONE THERMISTORS Models 700TF/I, 700BF/I In the 700 series, it is possible to independently control temperatures in each zone. This is accomplished in part by thermistors, which are simply resisters that change resistance as the surrounding temperature changes. The microprocessor constantly monitors the thermistor’s electronic signal and, as resistance...
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COMPONENT INFORMATION to 3°F colder than the zone above it. Therefore a ther- Models 700TR, 700BR mistor is used in each compartment (three thermistors in the 700TR and two in the 700BR). (See example, Can be set between Figure 2-18). The thermistor in the upper cabinet zone F - 45 of the 700TR (behind the back duct cover) and the Example - 38...
COMPONENT INFORMATION AIR BAFFLES Models 700TR, 700BR Models 700TR, 700TC/I, 700BR Only OPERATION A baffle will normally be closed until the corre- sponding zone calls for cooling. A baffle will default to open if the corresponding thermistor is defective or unplugged. Generally, all baffles will be closed when the com- pressor is off.
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COMPONENT INFORMATION 3. Detach all four drawer slides by removing four mounting screws (Figure 2-21). 4. Remove both drawer closers by removing two mounting screws (Figure 2-22). 5. Remove both reed switches by unscrewing the mounting screw, tilt the top of the reed switch assembly forward and disconnect the electrical connector (Figure 2-17).
COMPONENT INFORMATION EVAPORATOR SUMP Models 700TR, 700BR The evaporator sump area consists of the follow- ing components. • Evaporator/Heat Exchanger Assembly • Evaporator Fan Motor Assembly • Cal Rod Defrost Heater (700TC/I, 700TF/I, 700BF/I Only) • Defrost Terminator (700TC/I, 700TF/I, 700BF/I Only) •...
COMPONENT INFORMATION by the bottom left corner. Pull the bottom of tion), disconnect electrical connection and lift out. the air duct forward and disconnect the electri- cal connectors to the air baffles (700TR & EVAPORATOR THERMISTOR 700BR Only), then remove the air duct from Cut cable ties holding thermistor to evaporator the unit.
LIGHTING length of time that the heater actually stays on to defrost the evaporator and satisfy the defrost ter- The 700 Series utilizes Halogen lamps for interior minator is sensed by the evaporator thermistor. lighting. The length of heater ON time determines the num- Power for the lights is supplied through a 12 volt ber of hours before the next defrost.
COMPONENT INFORMATION ELECTRONIC CONTROL SUMMARY ERROR MODE If a zone thermistor is defective or unplugged, the Setpoints Available corresponding zone indicator will flash and either "-20" or "55" will be displayed. ALL REFRIGERATOR (700TR) • Upper Cabinet Zone Temperature Range is NOTE: To clear the error mode after a thermistor 34°F to 45 °...
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COMPONENT INFORMATION EVAPORATOR FAN NOTE: The evaporator fan NOTE: A defective evaporator sensor will result is turned off when any door or drawer is opened. in a five minute fan delay before the compressor The fan is also off during a defrost and post- can start.
COMPONENT INFORMATION UNIT TRAY COMPARTMENT Drain pan The Unit Tray Compartment contains the unit tray assembly, master power switch, icemaker solenoid Compressor Fan motor valve (700TFI, 700TCI, 700BFI only), 12 volt transformer, and evaporator sump drain tube heater. Unit Tray Assembly The removable unit tray assembly was designed for easy access to the compressor, condenser, con- denser fan motor, and drain pan (Figure 2-27).
COMPONENT INFORMATION Evaporator Sump Drain Tube Heater 12-Volt Transformer To access the drain tube heater, the unit tray To access the transformer, slide the unit tray assembly must be slid out. The drain tube heater assembly out, then locate the transformer at the is located in the unit tray area at the bottom of the upper right side behind the water valve (if applica- evaporator sump (Figure 2-29).
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AIR FLOW AIR FLOW NOTE: In all the following air flow illustrations the white arrow signifies Pushed Air, while the shaded arrow signifies Returned Air. Pushed Air Return Air Model 700TR (Figure 3-1) The temperature for each compartment, or zone, in the 700TR can be independently controlled (up to 3°F colder than the zone above it) by the air baf- fle/duct divider system.
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AIR FLOW Figure 3-4. Model 700BR Air Flow Figure 3-3. Model 700TF/I Air Flow refrigerator compartment and is forced out at the top. Air then returns through an opening at the bottom right hand corner of the top duct, back down behind the right side of the lower air duct, to the evaporator sump area.
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PARTS LISTS & EXPLODED VIEWS 700TC/I SYSTEM VIEW 1. 4201940 Evaporator Fan Motor Assy. 2600617 Water Line 2. 6110270 Bolt #10-32 X 1/4 RD HD 6201120 Screw, #8-18 x 1.75 Truss SS 3. 6150030 Nut, #10-24 Hex SS 6200080 Screw, #8-15 x ½ Truss HD 4.
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PARTS LISTS & EXPLODED VIEWS 700TC/I SYSTEM VIEW Evaporator Fan Condenser Fan Compressor Solenoid 4-13...
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PARTS LISTS & EXPLODED VIEWS 700TF/I DOOR VIEW 1. 4202011 Door Assembly, RH 11. 4131750 Lower Drawer Front Assy. 4202012 Door Assembly, LH 12. 4181340 Ice Bucket Assembly 2. 3211510 Door Gasket 13. 4131800 Lower Drawer Tub 3. 0183600 Door Panel Bracket-Hinge Side 14.
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PARTS LISTS & EXPLODED VIEWS 700TF/I DOOR VIEW 4-15...
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PARTS LISTS & EXPLODED VIEWS 700TF/I COSMETIC VIEW 1. 4202100 Upper Control Panel Assy. 24. 3412031 Drawer Slide, Right Side 2. 4202100 Light Diffuser 1228600 Drawer Mount Extrusion 3. 3412032 Drawer Slide, Left Side 25. 4151570 Lower Air Duct Assy. 1228600 Drawer Mount Extrusion 26.
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PARTS LISTS & EXPLODED VIEWS 700TF/I SYSTEM VIEW 1. 4201940 Evaporator Fan Motor Assy. 6201120 Screw, #8-18 x 1.75 Truss SS 2. 6110270 Bolt, #10-32 x 1/4 RD HD 6200080 Screw, #8-15 x ½ Truss HD 3. 6150030 Nut, #10-24 Hex SS 3060130 Icemaker Switch 4.
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PARTS LISTS & EXPLODED VIEWS 700TF/I SYSTEM VIEW Condenser Fan Evaporator Fan Solenoid Compressor 700TC/I System View 4-19...
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PARTS LISTS & EXPLODED VIEWS 700BR DOOR VIEW 1. 6200720 Screw, #8-18 x ½ PH Truss Hd. 10. 4202020 Drawer Tub Seal 2. 0183580 Drawer Panel Bracket, Upper 11. 4202060 Upper Drawer Wire Channel 3. 6200110 Screw, #10-12 x 5/8 Truss SS 12.
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PARTS LISTS & EXPLODED VIEWS 700BR DOOR VIEW 700BR Drawer View 4-21...
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PARTS LISTS & EXPLODED VIEWS 700BR COSMETIC VIEW 1. 6150800 Plastic Hex Nut, 5/8-27 UNS-2A 3211491 Sump Cover Seal, Right Side 2. 3412032 Drawer Slide, Left Side 3211492 Sump Cover Seal, Left Side 1228600 Drawer Mount Extrusion 3211493 Sump Cover Seal, Rear 3.
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PARTS LISTS & EXPLODED VIEWS 700BF/I SYSTEM VIEW 1. 4201940 Evaporator Fan Motor Assy. 36. 3090160 Transformer 2. 4201940 Evaporator Fan Blade 37. 6200780 Screw, #10-24 x ½ PH Hex 3. 0233500 Evaporator Fan Bracket 38. 4201995 Control Board Assy. 4.
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PARTS LISTS & EXPLODED VIEWS 700BF/I SYSTEM VIEW Evaporator Fan Compressor Solenoid Condenser Fan 4-31...
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PARTS LISTS & EXPLODED VIEWS NOTES 4-32...
TROUBLESHOOTING GUIDE GENERAL TROUBLESHOOTING GUIDE Complaint Possible Cause Correction Warm compartment Electronic Control function. temperatures. 1. Control shut off. 1. If “--” is displayed, unit is off. Press Questions: “COLDER” key to start the unit. What are zone temperatures 2. Control setpoint is too warm. 2.
AIR FLOW GENERAL TROUBLESHOOTING GUIDE Complaint Possible Cause Correction Incomplete defrost Warm compartment temperatures (continued). Poor evaporator air flow. NOTE: To initiate a manual defrost, see defrost section at front of Troubleshooting Guide. 1. Faulty door sensor (700 TC/I, 1. With door shut and reed switches 700TF/I only), or faulty reed depressed, check for 115V across P7 &...
TROUBLESHOOTING GUIDE GENERAL TROUBLESHOOTING GUIDE Complaint Possible Cause Correction Warm compartment Poor Air Baffle operation temperature (continued). 700TR, 700TC/I, 700BR only. 1. Air baffle obstruction. 1. Clean foreign material from baffle so it slides freely. 2. Air baffle faulty. 2. At control board, with baffle harness dis- CAUTION! Low voltage.
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AIR FLOW GENERAL TROUBLESHOOTING GUIDE Complaint Possible Cause Correction Lighting inoperative Poor door closing (continued). 700TR, 700TC/I, 700TF/I only. CAUTION! Low volt- 1. Food obstructing door closing. 1. Remove obstruction. age. DO NOT apply 115 2. Door hinge binding, door not clos- 2.
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TROUBLESHOOTING GUIDE GENERAL TROUBLESHOOTING GUIDE Complaint Possible Cause Correction Lighting inoperative 2. Transformer secondary winding 2. 700BR, 700BF/I only. Check the trans- (continued). faulty (continued). former secondary winding for 15VAC at any light socket. If no 15VAC, repair CAUTION! Low volt- wiring or replace transformer.
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AIR FLOW GENERAL TROUBLESHOOTING GUIDE Complaint Possible Cause Correction Display problems(continued): 7. Segment of a number 7. LCD faulty. 7. Replace control panel assy. missing on LCD. 8. LCD off, unit running. 8. Display cable is unhooked or 8. Repair wiring. faulty.
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TROUBLESHOOTING GUIDE GENERAL TROUBLESHOOTING GUIDE Complaint Possible Cause Correction External moisture. Air infiltration/high humidity. Questions: 1. Door/drawer not closing. 1. See DOOR/DRAWER NOT CLOSING above. Where is the moisture? 2. High usage. 2. Instruct customer. What are the ambient condi- tions? 3.
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TROUBLESHOOTING GUIDE 4: If door closes all three times, install 700 Series 700 SERIES DOOR CLOSING Top Hinge Shims Package, part #4202290. CHECK AND REPAIR PROCEDURES 5: If door fails to close, remove the three remaining screws from the top door hinge and check the closing action of the hinge on its own.
TROUBLESHOOTING GUIDE 700TC/I AIR SEALS If Refrigerator Section Is Too Warm • Make sure upper air duct is positioned in slot of transition duct. If not, reposition upper air duct (see #1, Figure 5-1). • Check that all foam blocks are in position at Upper Air Duct top of transition duct, and are making a good seal against upper air duct (see #2, Figure 5-...
TROUBLESHOOTING GUIDE SEALED SYSTEM TROUBLESHOOTING GUIDE Operating System Pressures F AMBIENT F AMBIENT MODEL LOW SIDE HIGH SIDE LOW SIDE HIGH SIDE 700TR 8 to 18 85 to 95 9 to 19 105 to 115 700 TC/I -2 to 2 75 to 85 -1 to 3 115 to 120...
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TROUBLESHOOTING GUIDE SEALED SYSTEM TROUBLESHOOTING GUIDE Complaint Possible Cause Correction Compressor runs excessive Kickplate/grille restricted. Remove restriction. amount (continued). Sealed system leak or low charge. Check sealed system operating pres- sures. If low side and high side pres- sures are low, locate leak, flush system and repair or replace part.
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TROUBLESHOOTING GUIDE SEALED SYSTEM TROUBLESHOOTING GUIDE Complaint Possible Cause Correction Compressor kicks out on Compressor malfunction. overload (continued). 1. Relay and/or overload faulty. 1.Use a starting cord to start compressor direct. If compressor starts, replace relay and overload. 2. Compressor rotor locked. 2.
TROUBLESHOOTING GUIDE ICEMAKER TROUBLESHOOTING GUIDE WARNING! Disconnect power to icemaker before attempting repairs. CAUTION! Do not attempt to jump start the icemaker through any ports other than “T” & “H”. Probing the other ports while the unit is powered my cause the icemaker to short out. Note: For detailed information on the modular icemaker, see the Icemaker Service Manual.
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TROUBLESHOOTING GUIDE ICEMAKER TROUBLESHOOTING GUIDE Complaint Possible Cause Correction 5j. Damaged heater or thermostat tulips on 5j.Replace icemaker modular head. No ice/low ice module. production (continued) 5k. Heater pins too short, not contacting 5k.Replace mold and heater assembly. module. 6. Lower ice level arm. 6.
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TROUBLESHOOTING GUIDE ICEMAKER TROUBLESHOOTING GUIDE Complaint Possible Cause Correction 2. Open heater circuit (module gear should be 2. Replace mold and heater assembly. No ice/low ice turning). production (continued) 3. Heater not staked into mold completely. 3. Replace mold and heater assembly. 4.
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TROUBLESHOOTING GUIDE ICEMAKER TROUBLESHOOTING GUIDE Complaint Possible Cause Correction 1. Thermostat out of calibration. 1. Replace thermostat (apply fresh alumi- Water or ice slab in lastic). ice bucket or freez- er compartment 2. Jammed cubes during water fill (11:00 ejec- 2.
WIRING DIAGRAMS & SCHEMATICS SECTION 7 WIRING DIAGRAMS & SCHEMATICS NOTE: Due to our Continuous Improvement Program, it is recommended to always use the wiring diagram & schematic supplied with the unit, located in the envelope in the compressor area. This section is for refer- encing prior to servicing or if the wiring dia- gram &...
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WIRING DIAGRAMS & SCHEMATICS WIRING DIAGRAM - MODEL 700TR THERMAL OVERLOAD INTERLOCK SWITCH UPPER LIGHTS WHITE W/PINK WHITE W/ORANGE DOOR SWITCH YELLOW W/BLACK YELLOW W/RED YELLOW W/WHITE YELLOW W/BLUE YELLOW W/PURPLE YELLOW W/WHITE WHITE W/RED THERMISTOR WHITE W/RED WHITE W/BROWN WHITE W/BROWN WHITE W/BLACK REFRIGERATOR...
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WIRING DIAGRAMS & SCHEMATICS WIRING DIAGRAM - MODEL 700TC, 700TCI THERMAL OVERLOAD INTERLOCK SWITCH UPPER LIGHTS WHITE W/PINK WHITE W/ORANGE DOOR SWITCH YELLOW W/BLACK YELLOW W/RED YELLOW W/WHITE WHITE W/RED WHITE W/RED WHITE W/BROWN REFRIGERATOR SENSOR FREEZER LIGHT(UPPER) ORANGE BLUE WHITE GREEN PURPLE...
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WIRING DIAGRAMS & SCHEMATICS WIRING DIAGRAM - MODEL 700TF, 700TFI THERMAL OVERLOAD INTERLOCK SWITCH UPPER LIGHTS WHITE W/PINK WHITE W/ORANGE DOOR SWITCH WHITE W/RED WHITE W/RED FREEZER LIGHT(UPPER) ORANGE BLUE GREEN PURPLE WHITE W/PINK BLACK WHITE W/BROWN WHITE TEST THERMISTOR LT.
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WIRING DIAGRAMS & SCHEMATICS WIRING DIAGRAM - MODEL 700BR REFRIGERATOR GREEN WHITE W/PINK LIGHT(UPPER) WHITE W/BROWN THERMISTOR DRAWER CONTROLS 2 3 4 DOOR SWITCH GREEN WHITE W/PINK WHITE W/BROWN REFRIGERATOR LIGHT(LOWER) LT. BLUE W/RED LT. BLUE W/RED THERMISTOR BAFFLE CONTROL YEL/WH YEL/RED YEL/BK...
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WIRING DIAGRAMS & SCHEMATICS WIRING DIAGRAM - MODEL 700BF, 700BFI GREEN FREEZER WHITE W/PINK LIGHT(UPPER) WHITE W/BROWN THERMISTOR DRAWER CONTROLS 2 3 4 DOOR SWITCH GREEN WHITE W/PINK WHITE W/BROWN FREEZER ICEMAKER LIGHT(LOWER) SWITCH BLACK PINK ICEMAKER FUSE ICEMAKER PINK PINK (OPTIONAL) WHITE...
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