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GE Consumer Home Services Training
TECHNICAL SERVICE GUIDE
Monogram
Side-By-Side Refrigerators
With Electronic Controls
GEA01265
MODEL SERIES:
ZIS360NM
ZIS420NM
ZIS480NM
ZIS_360DM
ZIS_420DM
ZIS_480DM
PUB # 31-9091 03/02
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! IMPORTANT SAFETY NOTICE The information in this service guide is intended for use by individuals possessing adequate backgrounds of electrical, electronic, and mechanical experience. Any attempt to repair a major appliance may result in personal injury and property damage. The manufacturer or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in connection with its use. WARNING To avoid personal injury, disconnect power before servicing thi
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Table of Contents Technical Data ........................................................................................................................ 3 Model Nomenclature .............................................................................................................. 4 Rating Plate ...................................................................................................................... 4 Mini-Manual .................................................................
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Table of Contents (cont.) Compartment Lights ............................................................................................................. 44 FF/FZ Compartment Lights Diagnostic .......................................................................... 44 Door Switches ................................................................................................................. 45 Master Light Switch (Sabbath Switch) ............................................................
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Technical Data WARNING: Disconnect power cord before Important Safety Notice: servicing. This information is intended for use by individuals possessing adequate backgrounds of electrical, Note: Reconnect all grounding devices. electronic, and mechanical experience. Any attempt All parts of this appliance capable of conducting to repair a major appliance may result in personal electrical current are grounded. If grounding wires, injury and property damage. The manufacturer or screws, straps, cli
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Model Nomenclature ZI S S 480 N MA LH Brand/Product Door Type Z - Monogram F - Flat R - Right L - Left Door Swing Style I - Built-In Engineering A - Initial Design Configuration B - 1st Revision S - Side by Side C - 2nd Revision D - 3rd Revision Etc. Color S - Stainless B - Black W - White Model Year Blank - Trim Model L - 2002 Pre-Energy M - 2002 Energy Size 480 - 48 Inches Wide Icemaker/Exterior N - Nondispenser Mini-Manual and Rating Plate Rating Plate The rating plate, located behind th
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Serial Number The serial number consists of two letters, followed by six numerals. The two prefix letters of the serial number indicate the month and year the product was manufactured. The year of manu- facture does not correspond with the model year of the model number. JB ANFR EMR AAY PMN AJL UJG UAP UST EOV CNC O DE 2Z 000AZDZFZGZHZLZMZRZSZTZVZ Z 2A 001AADAFAGAHALAMARASATAVA Z 2D 002ADDDFDGDHDLDMDRDSDTDVD Z 2F 003AFDFFFGFHFLFMFRFSFTFVF Z 2G 004AGDGFGGGHGLGMGRGSGTGVG Z 2H 005AHDHFHGHHHLHMHRH
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Component Locator Views Compressor Dryer Condenser Fan Master Light Switch Overload & (Sabbath Switch) PTCR Relay Figure 1 - Machine Compartment Evaporator Defrost Heater Evaporator Thermistor Evaporator Overtemperature Thermodisc (TOD) Figure 2 - Evaporator (Top of Freezer) – 6 –
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Water Valve Evaporator Fan Motor Capacitor Evaporator Fan Connector Figure 4 - Evaporator Fan Figure 3 - Water Valve and Capacitor (Center of Machine Compartment) Drawer Under Center of Unit Circuit Breakers Transformers Figure 5 - Light Circuit Transformers – 7 –
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Freezer Fresh Food Door Switch Door Switch Temperature Touch Pad Icemaker Damper Airflow Grille Water Filter Auger Drive Cube Solenoid Fresh Food Thermistors Freezer Thermistor Lower Fresh Food Lights Temperature Climate Control Overload Device Drawer Fan Temperature (TOD) Overload Device (TOD) Climate Control Drawer Dampers Figure 6 - Freezer Compartment Figure 7 - Fresh Food Compartment – 8 –
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Cabinet The outer case is made of prepainted galvanized steel. The fresh food and freezer liners are painted metal with a smooth finish. The liners are not removable or replaceable. Machine Compartment Machine Compartment The machine compartment is located on the top of the unit and has a movable chassis that can be extended from the front of the unit to provide access to the refrigeration system components. Caution: Avoid kinking the refrigeration lines when The Master Light Switch (Sabbath sw
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Door Closure Mechanism Doors and Hinges The door closure mechanism uses a spring to The doors are of one-piece construction with foam provide positive door closure from approximately insulation. 60 degrees. The door closure mechanism The inner door panel and outer door panel cannot actuator arm has a spring attached to the rear and be separated and must be replaced as an is supported by guide rollers on either side of the assembly. base channel. The roller circumferences and the actuator arm det
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Hinge 3. Remove T-27 Torx screws (4) and hinge from the bottom of the door. Bushing Base Channel Spacer Hinge 5/16" Bolt Door Stop GEA01268 Door Gaskets The fresh food and freezer doors have magnetic gaskets that create a positive seal to the front of the steel cabinet. The center mullion also has magnets to assist in door sealing. Improper installation of the door gasket will cause same-poled magnets to oppose one another, preventing the door from closing tightly. The magnetic door gaskets ar
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Ice and Water Dispenser The icemaker is mounted to the upper left wall of Power Switch the freezer cabinet. Under normal operating Icemaker conditions, temperatures, door openings, and food load, the icemaker is capable of producing approximately 100 to 130 cubes in a 24-hour period. To service the icemaker, refer to GE Publication 31-9063. Controls Green The electronic controls on the dispenser are Power Light Feeler Arm interactive. The control panel is equipped with a proximity sensor that ca
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Water Valve and Water Tank The water valve is mounted in the left side of the Water Valve machine compartment. Screw Screw A plastic water line is routed from under the unit, up the back of the cabinet, into the machine compartment, and to the water filter. A line then goes from the water filter to the water valve. Two low-pressure plastic water lines supply water to the icemaker and door dispenser from the water valve. A plastic water line is routed from the water valve, out the back of the m
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Airflow Damper The fresh food compartment receives chilled air via an electronic damper that is positioned at the top rear of the fresh food compartment. The damper is controlled by the main control board and when open, allows the evaporator fan to push chilled air from the evaporator into the fresh food compartment. To Remove the Damper 1. Remove the light cover. 3. Remove the Styrofoam section covering the damper. 4. Disconnect the damper wiring connector. Damper Screws 2. Remove 4 Phillips s
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Evaporator Fan Evaporator Fan Adjustment Airflow The position of the fan blade in relation to the shroud is critical. Refer to evaporator fan adjustment graphic for specifications. If the fan shorts, it may damage the main control board. If the resistor on the main control board is burnt, you must replace the fan and the board (see 5/16 photo). +/- 0.03 The evaporator fan utilizes a permanent magnet, 4-pole, DC motor that can operate at three different speeds: high, medium, and low (medium an
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speed and medium-speed operation. When operating in low and medium speeds, voltage is sent in pulses (much like a duty cycle) as opposed to an uninterrupted flow. This pulsing of 12.6 VDC produces effective voltage being received at the motor, which is the equivalent to a reduction in voltage. Fan speed will be selected and maintained by the control board regulating the length and frequency of the 12.6 VDC pulse. One complete revolution of the motor is comprised of all 4 poles. To determine t
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White Wire (DC Common) The white wire is the DC common wire used for testing. During repairs, DC polarity must be observed. Reversing the DC polarity will cause a shorted motor and/or board. Red Wire (Supply) Each motor uses an internal electronic controller to operate the motor. Supply voltage from the main control board remains at a constant 12 VDC. Blue Wire (Feedback/RPM) The blue wire feeds rpm (speed) information to the main control board, allowing the board to maintain consistent fan s
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To Remove the Evaporator Fan 1. Remove the ice bucket. 2. Disconnect the icemaker connector. Loosen 2 screws and remove icemaker. Screws 3. Remove 4 screws and slide the icemaker drive motor assembly forward. Disconnect the wiring connector and remove the assembly. Icemaker Drive Motor Assembly 4. Remove 2 screws and inner section of left ice Screws bucket track. 5. Remove 2 screws and wiring cover. Screws Wiring Cover Evaporator Fan Cover 6. Remove 6 screws and evaporator fan cover. Screws –
