Dacor EF48 Series, Service Manual

Page 1: ...Please read all safety information before installing operating or repairing this appliance Service Manual Built in Refrigerator Covers Models EF48 IF48 EF42 IF42 ...

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Page 3: ...l 2 3 Temperature Monitoring 2 4 Variable Capacity Compressor 2 6 Sealed System 2 8 Cabinet Airflow 2 10 Defrost System 2 11 Water Dispenser System 2 12 Cabinet 2 14 Leveling System 2 14 Door Assembly 2 15 Shelf Systems 2 16 FoodSaver Drawers 2 17 Cabinet Lighting 2 19 User Interface Controls 2 20 Section 3 Service Diagnostics 3 1 Service Test Mode 3 1 Service Test 01 Software Revision 3 2 Service...

Page 4: ...ig kitchens and big plans require a big refrigerator Simply making a freestanding unit larger introduces new problems As a cabinet gets larger temperature control and access to the contents becomes a greater challenge Not only are the refrigeration needs different in these dream kitchens but the decorating demands are greater A refrigerator is either expected to stand out as a statement that the o...

Page 5: ...intained in the fresh food section The main section can be set for good storage of dairy and condiments as well as other foods This temperature can be set to whatever the customer wants which could be approximately 37 degrees One FoodSaver module can be set to store the citrus at 38 degrees and the other can be set to store meats at 31 degrees It is almost like getting three refrigerators in one c...

Page 6: ...eeded to maintain optimum temperatures With a preemptive adaptive defrost the system looks forward and anticipates usage patterns to avoid defrosting at a time that may not be best The control tracks information about how the owners use the refrigerator The refrigerator has learned that between four and seven in the afternoon there are a large number of door openings A large number of door opening...

Page 7: ... car should have all the latest features and options available By providing Variable Capacity the Dacor Built in products provide high performance power when needed and high efficiency all of the time While this product line is not currently Energy Star rated the performance is just short of the requirements The testing procedures are very specific and the laboratory tests place this product just ...

Page 8: ...ou use your refrigerator or during some of the normal system operations AIRFLOW SOUNDS There are a number of fans in the unit that make airflow sounds when in operation The freezer fan circulates cool air throughout the refrigerator The refrigerator circulating fan helps keep that compartment s temperature more uniform The condenser fan on top of your unit is utilized to remove the heat generated ...

Page 9: ... onto other products in the cabinet Some manufacturers think that a wire basket will do the job just fine In reality the contents are exposed to too much air and the contents dry out If something were to leak the leakage is destined to make a mess elsewhere The Dacor Built in Refrigerators include plastic Food Storage drawers Wide drawers with room for lots of deli products Wide drawers that allow...

Page 10: ...om there you can select feature levels ranging from entry level to deluxe To truly meet the customer s desires a customizable product is the right option The Dacor Built in Refrigerators can be configured in just about any way that will meet the customer s needs While there are standard option packages available if a standard package doesn t meet your needs add the features you want On the freezer...

Page 11: ...Dacor Built in Refrigerator Service Manual Page 1 8 48 DISPENSER MODEL Dacor Built in Refrigerator Service Manual ...

Page 12: ...Page 1 9 Section 1 Product Familiarization 48 DISPENSER MODEL ...

Page 13: ...Dacor Built in Refrigerator Service Manual Page 1 10 48 NON DISPENSER MODEL Dacor Built in Refrigerator Service Manual ...

Page 14: ...Page 1 11 Section 1 Product Familiarization 48 NON DISPENSER MODEL ...

Page 15: ...he end result is that usable space is lost to equipment The Dacor Built in Refrigerators place the cooling system at the top of the unit This places the equipment package up high and out of the way This provides the most possible space where people can use it The cabinet depth is considerably less than the cabinet depth of a large freestanding system By reducing the depth almost every item in the ...

Page 16: ...will be able to plan properly Space can be allocated for as many refrigeration systems as the customer feels is right for their needs Because of the forethought invested in design this product line can be completely enclosed in cabinetry All airflow is through the front of the unit Cabinets can be built on either side as well as above the unit The location for installation should include an outlet...

Page 17: ...es deep Two feet of the cabinet will be flush with the cabinets or built into the wall This means that you need at least two feet four and one half inches clear in front of the system If you want to be able to get past an open refrigerator you will need even more space The 48 cutout needs to be at least 83 47 wide and at least 24 deep A little extra depth would allow for some adjustment room Too m...

Page 18: ... you need at least 24 11 16 inches clear in front of the system If you want to be able to get past an open refrigerator you will need even more space The 42 cutout needs to be at least 83 41 wide and at least 24 deep A little extra depth would allow for some adjustment room Too much extra depth would make the installation of the anti tip device difficult 42 Cutout 41 1 2 Top View 24 41 1 4 42 Top ...

Page 19: ... 210 9 83 1 16 210 9 83 1 16 210 9 E Height to Top of Grille 83 3 8 211 8 83 3 8 211 8 83 3 8 211 8 83 3 8 211 8 F Width cabinet 47 1 4 120 0 47 1 4 120 0 41 1 4 104 8 41 1 4 104 8 G Width doors closed 48 1 16 122 1 48 1 16 122 1 42 1 16 106 8 42 1 16 106 8 H Depth Excl handles closed 25 1 4 64 1 25 1 4 64 1 25 1 4 64 1 25 1 4 64 1 I Depth Incl Handles closed 26 5 8 67 6 N A N A 26 5 8 67 6 N A N ...

Page 20: ...r than the cabinet is deep If excess weight is applied on the door the unit could tip forward If the cutout height is very close to the recommended height of 83 the cutout itself will prevent any possible forward tipping If there is more than one inch clear above the cabinet a section of 2x4 lumber must be mounted to the wall above the cabinet This 2x4 will keep the back of the cabinet from leanin...

Page 21: ...ese leveling legs are adjusted from the front of the cabinet just as any other service would be performed Even with new construction there may be slight unevenness to the flooring the system is installed upon By including four way leveling it is possible to level the refrigerator regardless of the condition of the floor Dacor Built in Refrigerator Service Manual FIGURE 22 ...

Page 22: ...nel version comes with full length extruded handles The overlay version comes without a handle allowing the customer to have any type of handle manufactured to match their décor From glossy acrylic to rich mahogany the exterior can be designed to either place the system in the limelight or camouflage this workhorse to blend into its surroundings Instructions for the creation of the panels and the ...

Page 23: ...the freezer door would need to be disassembled to slide in the left trim panel The equipment compartment panel is slid in from the end It is very important that any trim panel is only designed to fit within the frame provided Airflow for the heat exchange must be able to flow around the panel Dacor Built in Refrigerator Service Manual The door panels are slid in from the handle side of the door ...

Page 24: ... Unit Backside of Unit 8 32 1 2 Screw 1 2 Battens on side of machine compartment 1 8 below the machine compartment 1 4 Side Panel Fresh Food Side of Unit Pan Head Screw 8 32 1 2 Screw 1 8 Battens 1 4 Side Panel Freezer Side of Unit Pan Head Screw Door Door Side panels must be screwed into place Spacers need to be added to support the panels for a secure mounting Drill 3 holes through vertical fram...

Page 25: ...rior space as a large top or bottom mount refrigerator Cubic feet of storage is not the only measure of capacity With less cabinet depth the contents are easier to reach There is more width to the cabinet allowing more available space at the front of the shelving Can it be customized to match my cabinets The exterior appearance is only limited by your imagination and the cabinet maker s skill If y...

Page 26: ...or The energy use is similar to the average refrigerator sold today If your current refrigerator is more than five years old the Dacor Built in Refrigerators should cost less to operate than your current system Why would I want to spend so much on a refrigerator This refrigeration system is not intended to be for everyone For the customer with the need for a built in refrigerator the superior perf...

Page 27: ...ltration System is installed correctly if applicable Purge water from the fountain on dispenser models Preparing the Space Make sure the opening where the unit will be installed is properly prepared for Cut Out dimension Check placement for electrical outlet and water line Fig 1 on page 1 25 Page 1 24 Installation Instructions Dacor Built in Refrigerator Service Manual WARNING Electrical Connectio...

Page 28: ... supply Use a shut off valve between the refrigerator and supply The shut off should be a drilled saddle valve Do not use a self tapping valve The ice maker operates on 30 to 120 PSI Route the water line within a of the wall and no higher than 3 from the floor Allow at least 3 of excess copper tubing outside the wall or floor for easy connection to the water valve Prior to connection assure that t...

Page 29: ...he lower kickplate anti tipping brackets and mounting hardware Fig 2a Remove the grille this will help when moving the unit Fig 2b 3 8 OR TOOLS NEEDED REMOVE KICKPLATE REMOVE SCREWS MAIN POWER SWITCH GRILLE PANEL Water Line Installation Connect the water supply to the water valve Turn the water on and check for leaks Plug the unit in Fig 3 Leveler Wheels Water Valves Fig 2a Fig 2b Fig 3 ...

Page 30: ...raise the leveling legs turn the hex screw in the counter clockwise direction Place a level on lower ledge of the machine compartment Level the unit front to back and side to side This is to prevent tipping of the unit See Fig 7 Install the kickplate Locate the main power switch in the machine compartment and toggle the switch On Install the grille panel 3 Phillips Screws Front Leveler Kickplate 3...

Page 31: ... block must not exceed Secure the L brackets using the provided screws into the wall studs Make sure the screws will extend 7 8 into the wall studs Align the pilot holes with the L brackets and secure the 2x4 with the screws provided Blocking the Unit If there is a solid soffit above the unit and the clearance is 1 or less you will not need to block the unit For installations with clearances of mo...

Page 32: ... molding in the channel and reset the magnetic backed molding To install the backer panel on the grille remove the screws on the top and bottom of the upper cover Fig 8c DO NOT REMOVE the foam Slide the backer panel into place and replace screws Fig 8d If the thickness of the backer panel is less than a back it up with a sheet of shim material to obtain a thickness Cardboard is recommended for Sta...

Page 33: ...g Backer Panels for handle trim piece removal With handle trim piece removed slide upper and lower panels in position To replace dispenser panels slide out Spill Tray grille and remove 2 Torx screws see inset Insert replacement panel Reinsert Torx screw and reinstall handle trim piece To replace second dispenser panel open freezer door until 4 Phillips screws that hold the door trim in place are a...

Page 34: ...ontrol panel down to remove Disconnect terminals on back of control panel Tuck dispenser terminal inside to avoid interfering with one piece panel Open door and slide one piece panel into position Reconnect control panel to dispenser terminal Reattach control panel with 2 Torx screws Reposition stainless steel liner into track and secure with 2 Torx screws Reinstall the Spill Tray grille and door ...

Page 35: ...s Cm A Panel Height 69 1 8 175 6 69 1 8 175 6 B Panel Width 15 1 16 38 26 17 5 16 43 97 C Top of dispenser cutout to top of panel 20 5 8 52 39 20 5 8 52 39 D Bottom of dispenser cutout to top of panel 35 7 16 90 01 35 7 16 90 01 E Left of dispenser cutout width 2 7 16 6 19 2 9 16 6 51 F Right of dispenser cutout width 1 5 16 3 33 3 3 8 8 57 Dispenser One Piece Freezer Framed Panel Panel Details ...

Page 36: ...69 1 8 175 6 B Panel Width 16 7 16 41 75 18 11 16 47 47 C Top of dispenser cutout to top of panel 21 3 16 53 82 21 3 16 53 82 D Bottom of dispenser cutout to top of panel 34 13 16 88 42 34 13 16 88 42 E Left of dispenser cutout width 2 1 16 5 24 2 3 16 5 56 F Right of dispenser cutout width 2 1 4 5 72 4 3 8 11 11 Dispenser One Piece Freezer Overlay Panel Panel Details continued ...

Page 37: ...tment Backside of Unit Backside of Unit 1 4 64 Side Panel 1 4 64 Side Panel Freezer Side of Unit Refrigerater Side of Unit Door Door Installing Side Panels Optional side panels need to be inch thick Slide panel into position and secure with screws indicated by the shaded area Fig 11a A 3 16 inch batten is required between the cabinet and side panel Fig 11b A inch thick by 10 inch tall batten is re...

Page 38: ...net Adjust Door Hinges Check to make sure the doors are properly adjusted If not adjust the top hinges The hinges are slotted for side to side movement Remove and discard the small Phillips screw on the door hinge which is located on the hinge Adjust the top hinges by loosing the 3 large Torx screws Tighten the screws after the doors are adjusted Extruded door handles can be adjusted for alignment...

Page 39: ...EFROST HEATER 42 GLASS DEFROST HEATER 48 CZT HEATER DEFROST THERMOSTAT UPPER FOUNTAIN HEATER LOWER FOUNTAIN HEATER 115V 882 1653 1323 44 5 37 8 72 7 60 6 113 240K 338 1352 230V 3527 6613 5290 71 4 60 6 40 4 33 9 113 240K 338 1352 BLU RD Y BLU PK RD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 9 10 11 12 18 19 15 16 17 13 14 1 2 8 7 6 5 3 2 1 4 10 9 ...

Page 40: ...he Main Control Board are powered by DC low voltage The components connected to the right side of the board are powered by 120VAC This means that the fresh food and freezer fans as well as the damper and FoodSaver assemblies are all powered by DC With this many DC components included in one product a robust power supply is needed The power supply is shown in the unified wiring diagram just below t...

Page 41: ...on you have verified that the power supply is capable of operation Disconnect the main power Reinstall JP11 and unplug JP7 and JP9 Reinstate power If the DC supply resumes normal operation you have eliminated the Main Control Board as the source of the excessive load on the power supply Disconnect power and reinstall JP9 If the power supply continues normal operation you have eliminated the displa...

Page 42: ...ed for the entire appliance Requests for ice and water dispensing are sent via the data lines and the appropriate solenoids are energized Loss of communication can result in various faults If an open or poor connection is at the Main Board all communication will be affected If the open is at the opposite end of a wire harness only the board with the loose connection will be affected Pin Pin Resist...

Page 43: ...help set the speed of the compressor If this thermistor were to fail the compressor may not run at the most efficient speed to keep the interior cool but the proper cabinet temperatures should be maintained Page 2 4 Dacor Built in Refrigerator Service Manual FREEZER DOOR ON ALARM REFRIGERATOR WATER FILTER WORKING RESET POWER INTERRUPT ORDER REPLACE UNIT ON POWER SERVICE 3 4 2 1 6 5 NOTE continued ...

Page 44: ...r it is not usually a cause for concern If a thermistor is considerably different than the actual temperature the system will not provide the proper cooling capacity This could result in frozen items in the fresh food compartment or thawing of frozen goods If you see a temperature display of 99 for either the fresh food or freezer section it is an indication of an open thermistor in that compartme...

Page 45: ... Main Control Board uses information from all six thermistors to determine the compressor speed The compressor will always start at high speed but will quickly adjust to the calculated capacity after starting The compressor motor is a three winding motor These three windings are powered by the Compressor PCB Printed Circuit Board The Compressor PCB is controlled by the Main Control Board The Compr...

Page 46: ...nd 6 as well as 230VAC between pins 3 and 6 Likewise if your meter registers 195VAC between pins 1 and 3 the readings between pins 1 and 6 and pins 3 and 6 should be 195VAC The easiest way to assure that the compressor is being driven at full speed is to activate service test 16 in the service mode To drive the compressor at the minimum speed activate service test 17 see Service Test section The s...

Page 47: ...hine compartment The PC loop empties into a filter drier and supplies liquid refrigerant to the capillary tube The capillary tube is part of the heat exchanger that crosses into the evaporator compartment and empties into the evaporator coil From the evaporator coil the gas returns through the heat exchanger to the inlet of the compressor The filter drier is mounted vertically with the inlet at th...

Page 48: ... fan motor are removed there are four more screws retaining the fan shroud Once the fan shroud is removed the foam drip tray is accessible The hose clamp holding the drain hose to the drip pan tray must be loosened and the hose removed as the drip tray is lowered You now have access to the evaporator coil and defrost heaters Should the coil need replacement the heat exchanger comes with the evapor...

Page 49: ...e fresh food section the fresh food damper will open and allow cooler air to be drawn from the freezer compartment The compressor may not energize at this point if sufficient cooling can be accomplished with the existing air in the freezer compartment When the thermistor has been satisfied the damper will close The fresh food stirrer fan will continue to be energized whenever the fresh food door i...

Page 50: ... under the drip tray and the tube heater is around the drain tube to prevent freeze ups leading out of the evaporator section Defrost termination is provided by the evaporator thermistor readings There is a mechanical defrost thermostat wired is series with the heaters to act as a safety thermostat should the Main Control board fail to open the defrost circuit The defrost water is routed from the ...

Page 51: ...ompartment There are two switches that monitor for the presence of the water valve or the bypass plug The inner switch closest to the filter base allows the water valves to be energized while the outermost switch will provide water filter monitoring If the bypass plug is installed the switch mounted closest to the filter base will allow the water valves to be energized The outermost switch will no...

Page 52: ...tion 2 Technical Orientation Water Dispenser System continued The dispenser control panel allows the consumer to select between water crushed ice or cubed ice The appropriate icon will illuminate to indicate the current setting The freezer door switch must be closed for the dispenser to operate This will prevent ice dispensing without the door closed All operation of the dispenser is suspended whi...

Page 53: ...re two 3 8 bolt heads on either side of the cabinet under the toe grille area The right adjustments are for the front leveling legs while the left adjustments operate the rear legs Extend Leveling Legs Snug to Anti Tip Bracket FPO image NOTE You can use the leveling legs to keep the cabinet snug against the anti tip bracket It is very important that the leveling legs are used to support the weight...

Page 54: ... adjustment When observing the top door hinge there are four screws installed at the time of manufacture If any adjustments need to be made remove the Phillips screw and discard This screw is used as a locator and will not be needed if the other three screws have been adjusted The full length handles on the frame style models are held in place with screws that are hidden by a magnetic trim piece T...

Page 55: ...aver drawers and two wire baskets in the freezer section For door storage the fresh food section uses either pick off shelving or dairy bins The freezer door has the option of pick off bins or tilt out baskets To remove the standard shelving lift the entire shelf straight up and remove To remove the drawer style shelving lift th entire shelf straight up Page 2 16 Dacor Built in Refrigerator Servic...

Page 56: ...sper drawer The cabinet air does not flow through the drawer itself The cooling air flows around the drawer in an outer jacket Part of the inner liner is a polymer film This film is sensitive to humidity levels If the humidity inside of the drawer gets excessive the pores in this film expand and let the moisture out This moisture will condense on the evaporator coil and be removed during defrost W...

Page 57: ... with the old unit returned for analysis In the future individual components will be available for repair Page 2 18 Dacor Built in Refrigerator Service Manual FoodSaver Drawers continued Bulk Head Air Inlet Circulation Fan Exhaust Thermistor Outer Enclosure Shape Memory Polymer Permeable Fabric Inner Jacket ...

Page 58: ...r the door alarm to activate 10 minutes the lamps will be turned off This will help minimize the temperature impact on the contents of the compartment should a door be left open NOTE With this many lamps inside of the cabinet if the relay contacts were to weld together the compressor would be hard pressed to maintain the desired temperature If the lamps do not turn off when the door switches are h...

Page 59: ...erature When the fresh food door is opened the display will show the current cabinet temperature for the respective compartments The first time the UP or DOWN arrows are touched the display will show the current desired temperature or setpoint Subsequent taps on the arrow will either raise or lower the desired temperature The FILTER indicators will only illuminate if a filter is holding the Water ...

Page 60: ... for that particular test To end a test and return to the test selection menu tap the POWER INTERRUPT button again To enter the Service Test Mode the door switches must be held in the door closed position It would be easiest to tape the switch in the closed position Tap the POWER INTERUPT icon three times in succession The system will switch to the service mode and show the current mode as NORMAL ...

Page 61: ...een Service Test 02 High Ambient Override This is not really a test but a system setting for special operating conditions By activating the High Ambient override you will alter the temperature control programming This setting should only be used in cases of high temperatures and high humidity Pressing the Power Interrupt Button will activate this setting When activated the WORKING lamp will illumi...

Page 62: ...riate test number in place of the 03 Fresh Food Thermistor SHORTED The Freezer 04 evaporator 05 and ambient 06 thermistors will show the appropriate test number in place of the 03 Service Test 04 Evaporator Thermistor This test will give a GO NO GO test of the evaporator thermistor Pressing the Power Interrupt Button will report the condition of the thermistor Service Test 05 Freezer Thermistor Th...

Page 63: ... 08 Fresh Food Fan too FAST This display will apply to Service Test 08 Evaporator Fan Test except the 07 will be displayed as 08 Service Test 08 Evaporator Freezer Fan Test This test will give a GO NO GO test of the Evaporator Freezer fan Pressing the Power Interrupt Button will result in one of the following displays The fan will always initially display Lo for fan too slow Let the fan spin up to...

Page 64: ...fety thermostat is closed the defrost system will draw approximately 3 amps Pressing the Power Interrupt Button while at Service Test 11 will energize the defrost heaters When the Power Interrupt Button is tapped the display will indicate the current evaporator temperature on the fresh food side of the display The temperature should begin to quickly rise when the heaters are energized This can be ...

Page 65: ...od light system Line voltage should be present at JP12 pin 2 Service Test 14 Freezer Lights This test will energize the freezer lamps Pressing the Power Interrupt Button will energize the freezer light system Line voltage should be present at JP 12 pin 3 Service Test 15 Fountain Lamp This test will energize the fountain lamp dispenser light Pressing the Power Interrupt Button will energize the fou...

Page 66: ...mpressor Controller CN 05 pins 1 to 6 230VAC this is the output from the compressor controller to the compressor Service Test 17 Compressor Minimum Speed This test will energize the compressor at minimum speed The compressor should have been off for at least five minutes prior to this test If the off time is not five minutes the short cycle protection within the compressor controller will prevent ...

Page 67: ... the fan speed in revolutions per second Service Test 20 Fresh Food Thermistor Value This test will provide the current reading for the fresh food thermistor This reading is real time and does not involve the temperature control algorithm This reading should be very close to the actual temperature of the fresh food thermistor If the reading is drastically different than the reading from a known go...

Page 68: ...mistor This reading is real time and does not involve the temperature control algorithm This reading should be very close to the actual temperature of the ambient thermistor If the reading is drastically different than the reading from a known good and calibrated digital thermometer consider replacement of the thermistor Service Test 23 Evaporator Thermistor Value This test will provide the curren...

Page 69: ...vice Test 25 Fountain State This test reports back the current status of the dispenser If the dispenser control does not change the output suspect data communication problems with the dispenser control itself Pressing the Power Interrupt Button will indicate the current state of the dispenser Dispenser is Locked Dispenser is set for dispensing water ho from H2O Dispenser is set for crushed ice Dis...

Page 70: ... 27 Filter Valve Switch This test indicates the current state of the filter switch This switch must be reported as actuated for the filter monitor to operate Pressing the Power Interrupt Button will display the current switch state Filter is installed Filter is not installed Service Test 28 Actuator Switch This test displays the current state of the dispenser actuator paddle switch as read by the ...

Page 71: ...s test will energize the chute solenoid Pressing the Power Interrupt Button will energize the chute solenoid Service Test 32 Water Valve This test will energize the water valve s for the dispenser Pressing the Power Interrupt Button will energize the water valve so long as the dispenser switch is activated Service Test 33 Force Defrost and Exit This test will initiate a defrost cycle and exit the ...

Page 72: ...be displayed The heater will energize If the control does not sense heater continuity an H will be displayed The damper will open The display should be blank yet illuminated unless indicating an F or H The Citrus keypad should be illuminated Wait seven seconds touch the Produce Keypad The control will test the thermistor circuit If the circuit is open OC will show in the display If shorted CC will...