Instruction/ maintenance manual of the product ZIS420NM GE
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PUB # 31-9091 03/02 MODEL SERIES: TECHNICAL SER VICE GUIDE GE Consumer Home Services T raining Monogram Side-By-Side Refrigerators With Electronic Controls ZIS360NM ZIS420NM ZIS480NM ZIS_360DM ZIS_420.
IMPORT ANT SAFETY NO TICE 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 ma y result in personal injur y and proper ty damage.
– 1 – T echnical Data ........................................................................................................................ 3 Model Nomenclature ...................................................................................
– 2 – T able of Contents (cont.) Compartment Lights ............................................................................................................. 4 4 FF/FZ Compartment Lights Diagnostic .............................................
– 3 – T echnical Dat a ** For model ZIS 36: WR55X10166. Model ZIS 36D: WR55X10165. Model ZIS 42: WR55X10164. Model ZIS 42D: WR55X10163. Model ZIS 48: WR55X10162. Model ZIS 48D: WR55X10158. W ARNING: Disconnect power cord before servicing. Note: Reconnect all grounding devices.
– 4 – Rating Plate The rating plate, located behind the grille panel at the top of the refrigerator on the right side of the evaporator box, contains the model and serial numbers. Additionally , the rating plate specifies the minimum installation clearances, electrical voltage, frequency , maximum amperage rating, refrigerant charge, and type.
– 5 – 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 .
– 6 – Component Locator Views Figure 1 - Machine Compartment Figure 2 - Evaporator (T op of Freezer) Condenser Fan Compressor Dryer Master Light Switch (Sabbath Switch) Overload & PTCR Relay E.
– 7 – Figure 3 - W ater V alve and Capacitor (Center of Machine Compartment) Figure 4 - Evaporator Fan Figure 5 - Light Circuit T ransformers Capacitor W ater V alve Evaporator Fan Motor Evaporato.
– 8 – Climate Control Drawer Fan Figure 6 - Freezer Compartment Figure 7 - Fresh Food Compartment Freezer Door Switch Auger Drive Airflow Grille Icemaker Cube Solenoid T emperature Overload Device.
– 9 – 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.
– 10 – Doors and Hinges The doors are of one-piece construction with foam insulation. The inner door panel and outer door panel cannot be separated and must be replaced as an assembly . Door Adjustment Be sure the top hinge does not hit the cabinet trim.
– 11 – 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 .
– 12 – The icemaker is mounted to the upper left wall of the freezer cabinet. Under normal operating conditions, temperatures, door openings, and food load, the icemaker is capable of producing approximately 100 to 130 cubes in a 24-hour period. T o service the icemaker , refer to GE Publication 31-9063.
– 13 – W ater V alve and W ater T ank The water valve is mounted in the left side of the machine compartment. 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.
– 14 – 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.
– 15 – Bad Evaporator Fan Resistor J2 Connector GEA01140 Evaporator Fan Resistor Condenser Fan Resistor Evaporator and Condenser Fan Resistors Evaporator Fan Adjustment Evaporator Fan The position of the fan blade in relation to the shroud is critical.
– 16 – 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.
– 17 – 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 .
– 18 – T o Remove the Evaporator Fan 1 . Remove the ice bucket. 2. Disconnect the icemaker connector . Loosen 2 screws and remove icemaker . 3 . Remove 4 screws and slide the icemaker drive motor assembly forward. Disconnect the wiring connector and remove the assembly .
– 19 – 7 . Disconnect the evaporator fan wiring connector . 8 . Remove 2 screws from the fan mounting bracket and remove the fan. Condenser Fan The condenser fan utilizes a DC motor that operates at a single speed and is mounted in the machine compartment.
– 20 – Adaptive Defrost Adaptive Defrost can be described as a defrost system that adapts to a refrigerator ’ s surrounding environment and household usage.
– 21 – Normal Operating Characteristics • Evaporator fan running, without compressor or condenser fan. • Liner Protection Mode, fan comes on when the doors are open for 3 minutes. • Different sound levels can be heard when the fan changes speed; however , the fan should never be heard oscillating between speeds.
– 22 – Defrost Heater Caution: Use care to avoid scratching the finish on unit walls. The defrost heater is a single calrod-type, radiant heater mounted on the evaporator . T o remove the defrost heater: 1 . Remove the evaporator fan (see Evaporator Fan procedure in the Airflow chapter).
– 23 – Evaporator Thermistor The evaporator thermistor is mounted on the upper left side of the evaporator . The defrost cycle will terminate when the main control board detects 38 ° F from the evaporator thermistor . The main control board must sense 38 ° F in less than 35 minutes, or the defrost cycle will time out.
– 24 – Control System T ouch Panel and T emperature Control Board The temperature control assembly is located at the top front of the fresh food compartment and contains the touch panel and temperature control board. The temperature control board receives switched DC voltage from the main control board.
– 25 – GEA00859 Pin 1 J8 Compressor Pin 1 J9 Defrost Heater Pin 1 J11 Line Evaporator Fan Tach. J2 Pin 1 Personality Input 5 Pin 2 Fan Common Pin 3 Evaporator Fan Pin 4 Condenser Fan Pin 5 FF Fan .
– 26 – Main Control Board Locator T ables S N O I T I N I F E D N I P D R A O B L O R T N O C R O T C E N N O C N I P T U P N I T U P T U O N O I T C N U F 1 J1 C D V e c n a t s i s e r , s p o r d e r u t a r e p m e t n e h w , C T N s i r o t s i m r e h T .
– 27 – S N O I T I N I F E D N I P D R A O B L O R T N O C R O T C E N N O C N I P T U P N I T U P T U O N O I T C N U F 4 J1 l a t i g i D n o i t a c i n u m m o C l a t i g i D n o i t a c i n u m m o C l o r t n o c e r u t a r e p m e t , d r a o b l o r t n o c n i a m n e e w t e b n o i t a c i n u m m o c l a t i g i d y a w - o w T .
– 28 – S N O I T I N I F E D N I P D R A O B L O R T N O C R O T C E N N O C N I P T U P N I T U P T U O N O I T C N U F 9 J1 C A V s i t i u c r i c s i h t g n o l w o h s t n u o c r e m i t A .
– 29 – GEA01194 Pin 1 J8 Compressor Pin 1 J9 Defrost Heater Pin 1 J11 Line Pin 1 J12 Monogram Drain Pan Heater Pin 9 J7 Neutral Pin 8 NIC Pin 7 FZ Door Switch Pin 6 FF Door Switch Pin 5 QuickChill Heater Pin 4 Auger Motor Interlock Pin 3 Water Valve Pin 2 Crusher Solenoid Pin 1 Auger Motor Pin 1 QuickChill Htr.
– 30 – GEA01195 Evaporator Fan Tach. J2 Pin 1 Personality Input 5 Pin 2 Fan Common Pin 3 Evaporator Fan Pin 4 Condenser Fan Pin 5 FF Fan Pin 6 QuickChill Damper1 + J5 Pin 1 QuickChill Damper1 - Pi.
– 31 – Thermistors This main control board uses input from 4 thermistors. These thermistors are located in the fresh food section, the freezer section, and on the evaporator .
– 32 – Climate Control Drawer The Climate Control Drawer can chill or thaw items quickly . It can also store items at their optimum temperatures. This Climate Control Drawer contains the following.
– 33 – Climate Control Drawer compartment shown with top panel moved out Component Locator View Fan (in Fan Housing) Thermistor (in Fan Housing) Air Diffuser Dampers Heater (in Fan Housing) T op P.
– 34 – Operation During all modes of operation, the main control board will cycle the dampers, fan, and heater as necessary to maintain the desired temperature. T ypical operation is as follows: Select T emp This feature maintains optimum temperatures for specific items.
– 35 – W A H T S S E R P X E L L I H C S S E R P X E P M E T T C E L E S E D O M P M E T E D O M P M E T E D O M P M E T . S B L 5 .F ° 6 4 o t 2 4 1 . N I M 5 1F ° 5 2 2 S U R T I CF ° 3 4 3 . S B L 5 . 1F ° 6 4 o t 2 4 1 . N I M 0 3F ° 0 2 o t 5 1 2 E C U D O R PF ° 4 3 4 .
– 36 – Climate Control Drawer T op Panel (Mullion) Removal 1 . Remove 2 storage bins and the glass panel over Climate Control Drawer . 2 . Remove 4 screws from climate control top and slide back to access wire connectors. 3 . Disconnect the connectors and remove the top panel.
– 37 – Caution: When assembling the top panel, use care to prevent pinched wires. T roubleshooting Use this diagnostic flowchart if the Climate Control Drawer control panel and display are not operating properly .
– 38 – Fan and Fan Housing The 12 VDC fan is controlled by the main control board. The main control board turns the fan on and off based on input from the Climate Control Drawer control board and thermistor . The fan should always come on any time Express Chill or Express Thaw is selected.
– 39 – 3 . This step for fan removal only: Remove screen from front of fan and fan from housing. 4 . Remove 2 screws and the sheet metal cover from the right-hand side of the housing. 5 . Disconnect fan connector . 6 . This step for fan removal only: Cut fan wires at fan to remove.
– 40 – Thermistor The thermistor is clipped to the inside of the fan housing. The main control board controls the dampers, fan, and heater based on input from the Climate Control Drawer ’ s control board and the thermistor . Actual drawer temperature will be displayed in Select T emp mode only .
– 41 – Thermistor s e u l a V r o t s i m r e h T e r u t a r e p m e T ) C ( s e e r g e D e r u t a r e p m e T ) F ( s e e r g e D e c n a t s i s e R s m h o - o l i K n i 0 2 -4 -k 4 . 8 4 Ω 0 1 -4 1k 6 . 7 2 Ω 02 3k 3 . 6 1 Ω 0 10 5k 0 1 Ω Clip 9-Pin Connector Thermistor shown remov ed from clip.
– 42 – With the dampers open, cold air moves from the FZ compartment through the lower damper and into the fan housing. The fan blows the cold air through the dif fuser into the drawer . The air returns from the drawer through the diffuser and into the fan housing.
– 43 – Notes.
– 44 – Comp artment Light s The new Monogram side-by-side refrigerator uses 12 V AC halogen lights in both the fresh food and freezer compartments. The fresh food compartment is equipped with two 35-watt bulbs and five 20-watt bulbs producing a total of 170 watts.
– 45 – Door Switches The fresh food and freezer door switches are located at the top of the fresh food and freezer compartments. The fresh food door switch closes when the door is open, providing L1 to the fresh food compartment light transformer .
– 46 – T ype 2 T ype 1 T ype 2 T ype 1 This is a 35 watt, 12 volt, T ype MR11 bulb. If ordering through GE Parts and Accessories, order part WR02X11183. T ype 2 This is a 20 watt, 12 volt, T ype T bulb. If ordering through GE Parts and Accessories, order part WR02X11184.
– 47 – Upper light shield Screws Screws Slots Light housing Support tabs T ype 1 Bulb Replacement W ARNING: Halogen lights generate intense heat. Be certain power is off and lamps have sufficient time to cool before attempting to replace. 1. Set the master light switch to the OFF position and allow the lamps to cool.
– 48 – Lower lamp assemblies 6. Turn the lamp protector to access the bulb. Note: Always follow bulb manufacturer ’ s directions for handling and replacing bulbs. 7. Remove the bulb by holding the base and pulling straight out. Replace with a new bulb and replace the lamp protector .
– 49 – Note: Climate Control Drawer is referred to as Quick Chill . Schematic K AUGER 2 Ω 39 Ω CUBE DISPENSER ICEMAKER WA TER VAL VE 1330 ohms 39 ohms 330 ohms.
– 50 – The major components of the refrigeration system are a reciprocating-type compressor , condenser , condenser loop, dryer , and evaporator . These components, except for the condenser loop, are all replaceable separately . Compressor The compressor is a reciprocating type.
– 51 – Dryer The dryer is positioned vertically in the center of the machine compartment. A copper process tube, connected to the inlet of the dryer , provides access to the high-pressure side of the refrigeration system. The capillary is connected to the outlet of the dryer .
– 52 – Enter the diagnostic mode by pressing both the freezer temperature pads (plus and minus) and the refrigerator temperature pads (plus and minus) simultaneously . All 4 pads must be held for approximately 3 seconds. Blinking “ 0 ’ s ” in both displays indicate the refrigerator has entered the test mode.
– 53 – Fresh Food Warm - Freezer Normal Diagnostic Flowchart s Check control settings and temperatures. Food at setting of 37 ˚F and 0 ˚F with no door openings for 12 hours should be: Fresh food 34 ˚F to 42 ˚F Freezer -8 ˚F to +6 ˚F Control settings require adjustment Adjust settings and allow 24 hours to stabilize.
– 54 – Fresh Food T oo Cold - Freezer Normal Check control settings and temperatures. Food at a setting of 37 ˚ F and 0 ˚ F with no door openings for 12 hours should be: Fresh food 34 ˚ F to 42 ˚ F Freezer -8 ˚ F to +6 ˚ F Adjust setting and allow 24 hours to stabilize.
– 55 – Fresh Food W arm - Freezer W ar m Basic refrigerator checks: Door gasket seal OK? Door switch - light turning off with door closed? Repair as necessary. Is the condenser fan running? Is the compressor running? Is the evaporator fan running? Is the airflow within the freezer normal? NO Go to Condenser Fan Not Running flowchart.
– 56 – Freezer W arm - Fresh Food Normal Check control settings and temperatures. Food at a setting of 37 ˚ F and 0 ˚ F with no door openings for 12 hours should be: Fresh food 34 ˚ F to 42 ˚ F. Freezer -8 ˚ F to +6 ˚ F. Adjust settings and allow 24 hours to stabilize.
– 57 – Compressor Not Running Disconnect power. Warm freezer thermistor to 70 ˚ F. Reconnect power and set controls to 37 ˚ F and 0 ˚ F. Is the compressor running? Adjust setting and allow 24 hours to stabilize. Check for 120 VAC at connector J7-9 orange wire to terminal J8 white wire.
– 58 – Refrigerator Dead - No Sound, No Cooling Are the interior lights on? Check house supply voltage. Are 120 VAC present? NO House wiring problem. NO Check for 120 VAC at 3-pin connector at the rear of the unit. Are 120 VAC present? YES Repair wiring connections at 3-pin connector.
– 59 – Damper Door Does Not Operate Push on damper door to check manual movement. Is the damper door stuck? Push damper door halfway closed. Unplug refrigerator to reset main control board. Set temperature controls to 37 ˚ F and 0 ˚ F. Reconnect power.
– 60 – Heavy Frost on Evaporator Disconnect power. Unplug blue connector from main board. Measure between red wire on connector and orange (neutral) wire on main board J7, pin 9. Are there approximately 37 ohms? Always check door ajar, customer usage - numerous door openings, etc.
– 61 – Evaporator Fan Not Running Always check fan for obstruction first. Disconnect power to reset main control board. Warm freezer thermistor to 70 ˚ F. Set temperature controls to 37 ˚ F and 0 ˚ F. Reconnect power. At the evaporator fan connector, check for 13 VDC from the red to white wire and 8-13 VDC from the yellow to white wire.
– 62 – Condenser Fan Not Running Always check for obstruction first. Disconnect power to reset main control board. Warm freezer thermistor to 70 ˚ F and set temperature controls to 37 ˚ F and 0 ˚ F. Reconnect power. At the condenser fan connector, check for 13 VDC from the red to white wire and 11-13 VDC from the pink to white wire.
– 63 – W arranty YOUR MONOGRAM REFRIGERATOR WARRANTY Staple sales slip or cancelled check here. Proof of original purchase date is needed to obtain service under warranty.
– 64 – Notes.
– 65 – Notes.
– 66 – Notes.
– 67 – Notes.
– 68 – Notes.
– 69 – Notes.
– 70 –.
An important point after buying a device GE ZIS420NM (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought GE ZIS420NM yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data GE ZIS420NM - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, GE ZIS420NM you will learn all the available features of the product, as well as information on its operation. The information that you get GE ZIS420NM will certainly help you make a decision on the purchase.
If you already are a holder of GE ZIS420NM, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime GE ZIS420NM.
However, one of the most important roles played by the user manual is to help in solving problems with GE ZIS420NM. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device GE ZIS420NM along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
