FRESH FOOD - MSA World
Contents
1. FRESH FOOD EVAPORATOR ACCESS Pull water tubing cover forward to disengage Remove 3 Phillips screws and pull cover forward to expose fresh food evaporator and fan connector FRESH wu sa e m 3 PHILLIPS SCREWS KEYHOLE SLOTTED COVER A 12 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 imagination at work 46 FRESH FOOD FAN The fresh food fan is a 3 speed 12 VDC motor mounted in an EPS cover Styrofoam in front of the fresh food evaporator u 1 UT mye ache dide s pes PEI AN gt FRESH FOOD FAN 13 CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 2 5 08 imagination at work FRESH FOOD EVAPORATOR Es f Y a Y Y y s gt sl i MU eve NUI m x cM y ha LES iu meni 1 i I AN Ye 4 En STI ab ma og 14 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 imagination at work FRESH FOOD EVAPORATOR THERMISTOR The thermistor is located in an aluminum thermal block on the back ad ma apres 3 ZA 1 A 45 KES Vie yas t lt x z OA SSN 15 CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSU2. PSC25M PCF25N PSC25N PCF25P PSH25P PSC25P PSH25P ZFSB23D ZFSB26D Located behind vegetable pan above the Customcool air handler imagination at work
3. The coil does have a resistance value of approximately 46 ohms The resistance can be measured between the the following pins on the 35 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE MA 2 5 08 imagination at work 46 3 WAY VALVE BODY The valve body contains a cam rotor and magnet The rotor and cam grooved to rotate with the magnet The entire valve body has refrigerant flowing through it when the compressor Is operating LOCATING PIN 36 CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE an 2 5 08 imagination at work 46 VALVE ROTATION The pulses of the valve coil cause the magnet to rotate inside the valve body As the magnet rotates it moves the cam at the bottom of the valve The cam opens or covers the ports to the capillary tubes 37 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 MAGNET STOP POINT HOME POSITION imagination at work 46 TESTING THE 3 WAY VALVE The valve returns to home at the end of every freezer defrost cycle and whenever the refrigerator is reconnected to power To test the valve disconnect the refrigerator from power for at least 10 seconds place a s finger on top of the valve and reconnect power UC The main control overdrives the A PZA valve to the home position You should be able to feel the valv
4. In and Ea and Circulated irculated 6 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 imagination at work Ho Custom Cool Components Heater 1 6k ohms 35 watts Light bulb Fan Thermistor on some models 7 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 imagination at work Dispenser Board Some Models ADJUST TEMPERATURE COLDER Rermeeasron COLDER WATER CRUSHED DOOR ALARM e LIGHT O F Recommended 37 f Recommended e RESET FILTER GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE y 2 5 08 imagination at work Dispenser Board Some Models F is Recommended 379 Fis Recommended Adjust Temp NA Freezer Fridge Set Features wv x Lock On Off Controls Hold 3 Secs to Unlock om C3 9 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 imagination at work Dispenser Board Removal Remove 4 Phillips head screws Remove Dispenser Shield Duct door and Solenoid 10 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 4 2 5 08 imagination at work FRESH FOOD DESIGN EVAPORATOR COVER grum mmmmmms mmu 11 AND PROPREITARY INFORMATION FOR PUBLIC DISCLOSURE 08 imagination at work 46 Y
5. compressor and the fan continues to run in high speed until the evaporator thermistor reaches 34F and FF thermistor is 34F above set point The fan then continues to run for an additional 5 minutes after the 34F evaporator thermistor is reached 22 CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 imagination at work FRESH FOOD FORCED DEFROST See Pages 35 amp 36 If the main control board senses the fresh food section has been cooling for 45 minutes it immediately stops the refrigerant flow through the fresh food evaporator The main control board changes the position of the 3 way valve if cooling is still required in the freezer or turns the compressor off if the freezer is satisfied The fresh food fan operates on high speed until the evaporator reaches 34 F plus an additional 5 minutes after the evaporator reaches 34 F To prevent the refrigerator from going into forced defrost when first installed or after a power failure the control will disregard the 45 minute time limit if the freezer temperature is above 21 F 23 CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 imagination at work SHORTED OR OPEN FRESH FOOD EVAPORATOR THERMISTOR If the fresh food evaporator thermistor is either open or shorted the main control defaults to a fixed defrost cycle of 1 hour at high speed fan ec
6. gt 7 EN x SS 4 f l 4 T 197 gt Y 24 CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 4 2 5 08 imagination at work Beverage Center Duct On some models Airflow in to Beverage Center Door on refrigerator door Lowers Temperature of bin by 4 25 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 imagination at work Beverage Center Blower Replaced as an assembly with Fresh Food Fan Note Unless turned off feature will remain active for six months Press the Beverage Center pad to restart 26 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 S 08 imagination at work FREEZER EVAPORATOR The freezer evaporator consists of the evaporator check valve and accumulator The check valve and accumulator are not available separately 77 7 MITAD m fnt fe NS NNN x A di 7177 ri 27 CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 imagination at work FREEZER EVAPORATOR FREEZER EVAPORATOR THERMISTOR CHECK VALVE ACCUMULATOR t A 7 Xu j uu my LII gt r Or D 7 Mese 4 E URU a Y A t T ETT C 4 4 p AM UU 10 yl 1 J 28 GE CO
7. DUAL EVAPORATOR REFRIGERATOR TRAINING Service Guide Pub 31 9118 Service Bulletin REF11 07 Comparison Standard Single Evap System ClimateKeeper2 System 2 CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE am 2 5 08 imagination at work ly 3 BENEFIT OF DUAL EVAPORATOR TECHNOLOGY Energy star rating in 2004 1596 better then 2001 DOE standard Better tasting ice Near Silent 30 dBA 20 Less FZ Defrost Better food Preservation GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 More space on top shelf Remove FF fan plenum No Eagle 2X more humidity Keep food longer Independent Adaptive Cooling Variable speed compressor amp fans Dual evaporator imagination at work Custom Cool 225 ExpressChill amp de SEM Custom MEAT Cool ExpressThaw SelectTemp The CustomCool feature is a system of dampers a fan a temperature thermistor and a heater Depending on the function selected a combination of these will be used to quickly chill items thaw items or hold the pan at a specific temperature ExpressThaw ExpressChill SelectTemp Select the ExpressThaw ExpressChill or SelectTemp pad The display and SET light will come on Tap the pad until the light appears next to the desired setting Use the chart to determine the best setting to use 4 GE CONFIDENTIAL AND PROPREITARY
8. Ho i HEAT SHIELD KIT SHIELD AND PASTE WX5X8926 PASTE ONLY WX5X8927 A pdt s 4 po s 028 gt d I d 249 n 2 AN V lt DN 4 lt A a Ua ie E a gt E 5 MO AG 47 4 xS VM 3 MONEO Na E 4 E T PP Me ki m E Nu EUN T SEEMS Ea O GENS AR 90 52 32 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE y 2 5 08 imagination at work 3 WAY VALVE Three copper tubes connect to the 3 Way valve One jumper tube connects from the drier to the inlet on the valve A freezer capillary and a fresh food capillary connect to the other two tubes on the valve JUMPER TUBE TO DRIER CAPILLARY TUBE TO FREEZER CAPILLARY TUBE TO FRESH FOOD 33 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE APP 2 5 08 imagination at work Ho 3 WAY VALVE Located beneath the main control board in the machine compartment Two hex head screws mount the valve to the cabinet Make certain rubber gaskets are installed on mounting bracket to reduce vibration 34 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 imagination at work y 3 WAY VALVE COIL The valve coil receives 12 VDC pulses from the main board to change the position of the valve These pulses come too quickly to measure with a volt meter
9. INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 imagination at work Custom Cool ADJUST REFRIGERATOR TEMP ADJUST FREEZER TEMP o5LBS 92 p MM 5 See See r 3 0LBs SET 0 FIS RECOMMENDED 37 F IS RECOMMENDED SET TurboCool SET ExpressThaw ExpressChill SelectTemp Settings Express Chill 15 30 45 minutes Temperature not monitored fan always on damper always open Express Thaw 4 8 10 12 hour settings at 41F heater cycles single damper open fan always on returns to 34F and holds when time setting ends Citrus Setting Holds temperature at 42F fan always on heater cycles Produce Setting Holds temperature at 34F fan always off heater cycles double damper cycles Meat Setting Holds temperature at 32F fan always off double damper cycles heater cycles 5 CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE Foo 2 5 08 imagination at work Custom Cool Express Chill Express Thaw e Heater Cycles Single Damper Cold Air Always Open In From Freezer e Fan Always On Maintains 41 Using thermistor 4 8 or 12 hr Settings eTimed Cycle 15 30 45 Min eFan Always On eDouble Damper Pan Air Always Open Drawn Drawn
10. NFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 imagination at work ACCUMULATOR e The accumulator collects any liquid refrigerant left in the evaporator before it enters the suction line The liquid refrigerant pools in the bottom of the accumulator until it is drawn into the compressor as a vapor e The accumulator comes as a part of the freezer evaporator It is not available separately 29 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 2 5 08 imagination at work Ho CHECK VALVE A nylon piston inside the check valve floats back and forth depending upon refrigerant flow x ee m 4 4 lt The check valve prevents FREEZER EVAPORATOR SUCTION LINE refrigerant from flowing back into the evaporator _ Sy The nylon piston is extremely heat sensitive therefore the check valve is only available with a new evaporator 30 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE ex 2 5 08 imagination at work 46 FREEZER EVAPORATOR REPLACEMENT TWO METHODS Brazing or LOKRING LOKRING requires two WR97X10021 connectors Brazing requires a heat shield kit NE 3 gt s i Y Mg 1 i 77 77 4 Y Y RE E As ay miel E NON ores ee TA Li eee 31 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 imagination at work
11. RE Pty 2 5 08 imagination at work ly FRESH FOOD EVAPORATOR THERMISTOR The thermal block is wire tied to the evaporator 16 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 FRESH FOOD EVAPORATOR THERMISTOR The fresh food evaporator thermistor has a molded housing at the end 17 CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE w iii imagination at work FRESH FOOD EVAPORATOR THERMISTOR Barbs on the molded housing hold the thermistor in the thermal block 18 CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 N ae imagination at work FRESH FOOD EVAPORATOR THERMISTOR Make certain the thermal block is securely fastened to the evaporator Mo h A MAL PLA a ho We vv we New FF A 4 y ANS i e 7 W a Wi 27 at rA V7 Evaporator was Thermistor k 82 A A F f A 7 SA me lt Lis IS ISA gt 8656 1 lt 4 19 CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 imagination at work FRESH FOOD DEFROST See Pages 35 amp 36 The refrigerator cools the fresh food until the fresh food thermistor is satisfied The compressor cycles off but the fresh food fan runs at low speed until the evaporator thermistor reaches 34F The fan continues to run for a
12. e move as it returns to the home position If movement is present the main board and valve coil are operatin correctly 38 CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 imagination at work 46 BRAZING THE 3 WAY VALVE Apply a Wet Cloth Make certain the keep the valve N ai of Valve to Y body cool during brazing 7 Help Keep Valve Coo Apply a liberal amount of heat D absorbing paste around the valve body N Apply a wet cloth to the valve housing to keep the plastic parts cool while brazing Thoroughly dry the valve of any moisture before installing the coil on the valve 39 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 2 5 08 imagination at work Ho Installing 3 way Valve Coil pma T Use care not to damage the top of the valve body when installing the coil on the valve A locating pin is used to correctly align the valve body in the valve coil ANA 7153 E y Failure to fully seat the valve in the coil or to align it correctly with the pin can cause the system to stop cooling 40 CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 imagination at work Ho FRESH FOOD AND FREEZER SECTION COOLING Freezer Fan Condenser Fan Fresh Food Fan Accumulator 70 130 PSIG 0 5 PSIG E Compressor af tr ut il T Check Valve Fresh Food Fr
13. eezer ondenser X Evaporator Evaporator Drier 5 Jumper Capillary Tube 41 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 FHESH FOOD FREEZER BOTH High Pressure Vapor Bm Mix of Liquid and Vapor High Pressure Liquid Low Pressure Liquid Ed Mix of Liquid and Vapor Low Pressure Vapor imagination at work 42 GE Consumer amp Industrial Service Bulletin NOVEMBER 2007 FRESH FOOD ICE BALL Dual Evaporator models by design create a high humidity environment in the fresh food section Although this design improves the preservation of certain refrigerated foods the potential exists in some units for an ice ball to form in the lower section of the compartment due to excessively cold temperatures and high humidity The low temperatures are created bu gaps around the beverage center duct and along the left side of the Custom Cool air handler cover These locations can be sealed and the temperature improved using the service kit WR49X10180 120V heater or WR49X10175 220V heater Refer to the attached kit instructions for the proper repair method REFRIGERATORS REF 11 07 DUAL EVAPORATOR SIDE BY SIDE REFRIGERATORS SERIAL NUMBERS AG ZM ICE BALL KIT WR49X10180 DOMESTIC 120V WR49X10175 INTERNATIONAL 220V Models Affected PSF26P PSS26P PSW26P PSF26R PSW26R PCF23P PSC23P PSH23P PSW23P PCF23R PSW23R PCF25M
14. n additional 5 minutes once the evaporator reaches 34F The normal defrost time is approximately 30 minutes The maximum run time in low speed fan is 60 minutes 20 GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 2 5 08 imagination at work FRESH FOOD Extended DEFROST 1 See Pages 35 amp 36 If normal defrost fan time exceeds 60 minutes the fan switches to high speed The fan runs up to an additional 30 minutes at high speed trying to reach 34F If after 90 total minutes of fan time the fresh food evaporator is still below 34F the control changes to defrost 2 m R x yo r gt d y ee A a e h Tw Sy ES Ae N Sey M s P 7 7 c if p 5 id na Y A v A eate ut 7 t N c SAND SM A 2 3 imagination at work GE CONFIDENTIAL AND PROPREITARY INFORMATION NOT FOR PUBLIC DISCLOSURE 21 2 5 08 FRESH FOOD Extended DEFROST 2 see Pages 35 amp 36 If the fresh food fan has been operating for 90 minutes the main control looks for a fresh food thermistor temperature above 52F If the fresh food thermistor is above 52F the main control assumes there is a problem reading the evaporator thermistor and ends the defrost cycle and returns to normal cooling If the fresh food thermistor is less than 52F the main control assumes a 3 way valve leak and shuts off the
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