Haier GE GDF450P R0 Series Technical Service Manual Download Page 43

Page: 43 / 61

– 43 –

Main Control Board

Diagnosing the machine control board is covered in this section. Many components can be checked

from the main control, which can be accessed with the door on or removed if needed. Some

connectors are located through the bottom cover to allow easy access to the AC supply connector, door

harness and

ACM

ppliance

ontrol

odule. The ACM or smart appliance allows the appliance to

communicate with the utility meter when peak rates occur, and allows the appliance to respond and

operate in a manner that will reduce energy usage of that appliance at high/critical demand rates. For

more on the module and display, refer to the separate smart appliance documents. The machine

control board houses all the logic.

The service LED has a continuous flash which only advises the main control has power. The service

LED no longer has any blink patterns which were used to aid diagnostics in the past.

WARNING: GEA Factory Service Technicians are REQUIRED to follow Lockout / Tagout (LOTO)

6 Step Process prior to beginning repair.

Machine Control

Top View

Connector

Not Used

J504

Drain and Wash

Pump Motors

Connector

J503

Heater

Connector

Circulation

Pump Fuse

Drain Pump

Fuse

J603

DC Harness

Connector

Machine Control

Bottom View

RJ45

Connector

J401

User Interface and Detergent

Dispenser Connector

J202

Power Supply

Connector

Summary of Contents for GE GDF450P R0 Series

Page 1: ...hwasher Technical Service Guide March 2021 GDF450P R0 GDF450P R1 GDF510P R0 GDF510P R1 GDF511P R0BB GDF511P R0 GDF511P R1 GDF535P R0 GDF535P R1 GDT535P R0 HDF310PGR0 HDF310PGR1 HDF330PGR0 HDF330PGR1 HDF360P R0 HDF360P R1 XDF250PGR1 XDF350P R1 ...

Page 2: ...ctrical power is required for diagnosis or test purposes disconnect the power immediately after performing the necessary checks RECONNECT ALL GROUNDING DEVICES If grounding wires screws straps clips nuts or washers used to complete a path to ground are removed for service they must be returned to their original position and properly fastened GE Appliances a Haier Company Copyright 2021 All rights ...

Page 3: ...ion and Cycle Information 9 Troubleshooting 12 Flashing Lights 12 Will Not Start 12 Component Locator Views 13 Front Control 13 Right Side View 13 Left Side View 14 Toe Kick Area 15 Bottom View 15 Inside Tub Bottom View 16 Sump Bottom View 16 Inside View 17 Racks 18 Tub 19 Sump Module 19 Sump Gasket 21 Installing Sump Module 21 Ultra Fine Filter 21 Fine Filter 22 Two Port Diverter 23 Circulation S...

Page 4: ...mponents 35 Structure 37 Toe Kick 37 Junction Box and House Wiring Connection 37 Leveling Legs 38 Right Door Balance System 38 Left Door Balance System 38 Fill System 39 Water Level 39 Pressure Sensor 39 Fill Funnel and Hose 40 Fill Valve 41 No Fill Diagnostics 42 Main Control Board 43 To Access Main Control Board 44 Thermistor 44 Current Sensor Module CSM 45 Drain System 46 Failure to Drain Flowc...

Page 5: ...1 Front Control Console 52 User Interface UI Control Board 53 Door Gasket 53 Detergent Dispenser 53 Door Strike 54 Error Mode 55 Service Mode 56 Critical Faults 57 Fault Codes 58 Demo Mode 59 Sabbath Door Wake Up Mode 59 Wiring Diagram 60 Index 61 ...

Page 6: ...teel toe shoes for all repairs Step 1 Plan and Prepare Step 4 Apply LOTO device and lock Step 2 Shut down the appliance Step 5 Control discharge stored energy Step 3 Isolate the appliance Step 6 Try It verify that the appliance is locked out Steel Toed Work Boot Electrically Rated Glove and Dyneema Cut Resistant Glove Keeper Dyneema Cut Resistant Glove Cut Resistant Sleeve s Plano Type Safety Glas...

Page 7: ...lastic Tub and Inner Door Serial Number The first two characters of the serial number identify the month and year of manufacture The letter designating the year repeats every 12 years Example ZR123456S December 2020 A JAN D FEB F MAR G APR H MAY L JUN M JUL R AUG S SEP T OCT V NOV Z DEC 2024 Z 2023 V 2022 T 2021 S 2020 R 2019 M 2018 L 2017 H 2016 G 2015 F 2014 D 2013 A Model and Serial Tag Mini Ma...

Page 8: ...ations Electrical Specifications DC Voltage Door Switch 13 5 VDC Water Valve 13 5 VDC 32 Ω 83 GPM 1 minute cycle time User Interface UI Control 13 5 VDC some models have 13 5 VDC output to detergent module and dry fan Detergent Cup 13 5 VDC 25 Ω 5 second to release detergent cup 15 seconds to release rinse aid Fan Assist Dry On some models 13 5 VDC Flood Switch 13 5 VDC 42 amp Turbidity Sensor 5 V...

Page 9: ...ails fill and drain times which depend on either a full or partial drain It provides the circulation time in each segment but does not include turbidity or temperature adjustments or dry cycles see the Dry System under the Tub section in this guide Times will vary depending on turbidity response and incoming water temperature Cycle Option Selected Light Normal Fixed Heavy 1 Hour Everyday Heavy Dut...

Page 10: ...mpty 0 80 4 No Empty 0 80 7 No Empty 0 80 4 No Empty PW2 Fill gal Circ min Heat Drain LSA with Pulsing No 0 80 10 No Empty 0 80 10 No Empty 0 90 4 No Empty 0 80 15 No Empty 0 80 10 No Empty PW3 Fill gal Circ min Heat Drain 60 LSA 60 USA No 0 80 9 No Empty 0 80 5 No Empty 0 80 9 No Empty PW4 Fill gal Circ min Heat Drain 60 LSA 60 USA Yes will Shorten 30 0 80 15 Yes Empty Main Wash Fill gal Circ min...

Page 11: ...0 130 145 Heater Algorithm Dry Cycle Normal with Heated Dry Time minutes Calrod Description 7 Calrod on 33 Calrod Pulse 2 minute on 1 minute off 14 Calrod off Cool Down Normal with Temp Boost or Steam Sani Selected 7 Calrod on 57 Calrod Pulse 1 minute on 1 minute off Normal with Boost Dry 7 Calrod on 57 Calrod Pulse 2 minute on 1 minute off 15 Calrod off Cool Down ...

Page 12: ...ails on Error Mode and Service Mode as well as Service LED are located in the Main Control Board section of this service guide Single mounting screw If the control beeps and some LED s flash this indicates the dishwasher door may be in the open position If the User Interface UI is flashing all of the LED s this is an indication of a tripped CSM Current Sense Module and the dishwasher is non respon...

Page 13: ...out this service guide Some models do not have all features shown or may be different depending on the model number Front Control Pocket Handle Outer Door Panel Front Console Right Side View Silver Door Spring Offset Leg Pulley Cable Pulley Hinge Door Hinge ...

Page 14: ... 14 Left Side View High Drain Loop Hose Fill Funnel Fill Hose Black Door Spring Wishbone Link Door Latch Harness Part of the DC Harness Offset Leg Door Hinge ...

Page 15: ... 15 Toe Kick Area Water Valve Sump Toe Kick Insulation Junction Box Toe Kick Screws x2 Bottom View Machine Control Sump Level Leg Water Valve Junction Box Heater Tower Nuts Drain Hose ...

Page 16: ...om View Drain Pump Circulation Pump Floating Seal Thermistor Pressure Sensor Sump Sump Latch Cam Sump Latch Cam Sump Latch Cam Heater Clip Exposed Heater Fill Funnel Coarse Filter Main Conduit Diverter Fine Filter and Basket Assembly Sump ...

Page 17: ... 17 Inside View Lower Rack Tub Gasket Upper Rack Silverware Basket Detergent Module Latch Striker Main Conduit Upper Spray Arm Lower Spray Arm ...

Page 18: ... 18 Racks Lower Rack Rollers and Carrier Silverware Basket Lower Rack Small Cup Shelve Upper Rack Rollers and Brackets Mid Conduit Upper Rack ...

Page 19: ...the Fill System Circulation System or Drain System sections of this service guide The shaded portions indicate the molded sump Two Port Diverter Sump Module Removal 1 Remove power to the dishwasher 2 Remove the upper and lower racks 3 Remove the toe kick 4 Remove the door see Door Removal under Door in this service guide 5 Remove the lower spray arm by turning the locking nut counter clockwise CCW...

Page 20: ...d position 12 Push the sump from the bottom into the tub 13 Grasp the sump from inside Using care tilt and lift to bring the sump into the tub Bring the drain pump up and in first This allows access to disconnect the wiring in the next step NOTE It is important to route the wire harnesses in the same locations to prevent future damage to the harness 14 Disconnect the circulation pump wiring drain ...

Page 21: ... diverter on the sump module to the rear of the tub and main conduit 3 Press firmly into place using both hands to push down on the sump module 4 Latch the three sump latch cams The latch cams must not be used to pull the sump module into place 5 Connect the turbidity sensor and high drain loop hose Installing Sump Module Good filtration is key to good wash performance The ultra fine filter and ba...

Page 22: ...Fine Filter The fine filter is located on the sump assembly and should be cleaned each year or as needed for optimum performance To remove the fine filter remove the ultra fine filter and lift the front of the fine filter to release it from the rear tabs on the sump Water is filtered as water flows through both the fine and ultra fine filters Clean filtered water provides for improved washability ...

Page 23: ...pray system Lower Spray Arm Port Two Port Diverter Operation 1 The bypass allows water to bypass the check ball in the diverter as described in the next step The dishwasher is in OFF or standby mode no pump operation The check ball is at the bottom of the diverter 2 The wash pump turns on water flows to the lower spray arm and the check ball blocks the rear port or upper spray conduit The bypass a...

Page 24: ...e check ball positioned to block water entering the lower spray arm Water flows to the mid spray arm and upper sprayer 5 The wash pump cycles OFF for eight seconds The water pressure in the spray arms equalizes and the check ball is in the bottom or home position Tab Screw 6 When the wash pump starts the check ball again seals the rear port or upper spray arms The cycle repeats ...

Page 25: ...alternating spray arms allowing low water use helping energy efficiency A diverter system is used to isolate the wash arms and is controlled by cycling the wash pump as described later in this section Filtration has been greatly improved to allow clean filtered water to circulate during wash The fine and ultra fine filters are consumer removable and cleanable Specifications Single Speed Circulatio...

Page 26: ...lts and progress 2 Remove the bottom rack for an unobstructed view of the lower spray arm 3 Enter Consumer Error Mode 4 Enter Service Mode 5 Open the dishwasher door all the way to 90 degrees 6 Place the WX05X20002 clear door into the tub opening starting at the bottom WARNING To prevent any damage do not close the dishwasher door when the clear door is in use 7 The clear door has a latch strike W...

Page 27: ...clear coat Press hard to break this coating If an open fuse is found replace the machine control and circulation pump If the fuse has continuity check for 120 VAC from J504 3 orange to J504 4 brown and if voltage is good replace the circulation pump The circulation pump is a DC motor and cannot be checked for a resistance reading it contains internal diodes and rectifiers No Circulation J504 3 Cir...

Page 28: ... under the Door section of this service guide and Sump Module Removal under Sump Module in the Tub section of this guide 2 Loosen the outlet wash motor diverter clamp 3 Use a large flat blade screw driver to slide the circulation motor out of the floating seal As the pump assembly is removed from the seal slide the wash motor off of the hanger use care to not lose the hanger grommet and remove and...

Page 29: ...k design To remove turn the nut counter clockwise CCW Only the lower spray arm has heat shields Middle Spray Arm The mid spray arm provides an upward directed spray pattern to the upper rack To remove the mid spray arm turn the nut clockwise CW looking down through the upper rack The main conduit supplies water to the mid spray arm Main Conduit Removal 1 Remove both lower and upper racks 2 Remove ...

Page 30: ...r of the dishwasher and pull the end cap off the rail Upper Rack Rollers and Brackets The upper rack roller brackets are locked into place with a clip The clip must be removed to remove the roller brackets from the rack Press in on the tab and lift the locking clip Upper Rack Tub Thrust Washer Tub Roller T20 Torx Screw Several lower racks are available with different tine configurations consult th...

Page 31: ... push the gasket into the track to the track stopping point at the bottom of the tub To remove the lower rack brackets insert a flat blade screw driver under the tab and pry up Then slide the assembly off of the rack Pinch the clips inward and pull the rollers off of brackets Note When reinstalling the rollers onto the bracket ensure clips are fully engaged by tugging on the rollers Tub Gasket Tub...

Page 32: ...mately 6 to 8 inches Latch Paws Latch Striker Latch System Latch Switch Tub Latch 3 Remove two screws R2 Robertson Carpenters Bit or 2 Phillips screw driver Tub Latch Switch Diagnosing Diagnoses can be accomplished in Error Mode see Error Mode section of this service guide or with an ohm meter at the main control board as described below 1 Access the main board 2 Locate and disconnect connector J6...

Page 33: ...es and a 14 minute cool down Boost wash options will change the time needed due to hotter temperatures in rinse for options and the cycle selected The table below represents a normal cycle with heated dry option only selected Dual wattage occurs due to the heat level in the element raising the resistance of the internal element As water quenches the heat on the case resistance lowers and wattage r...

Page 34: ...ing up the rear and pull forward to the front to slide out of the heater support brackets Element Removal by Uninstalling the Dishwasher 1 Disconnect power to the dishwasher 2 Remove the lower rack 3 Remove the door 4 Remove the dishwasher from its installed position and place on its back WARNING If the door is not removed and the dishwasher is not placed on its back there is a TIP RISK 5 Disconne...

Page 35: ...rew into the boss to lock the bracket in place Heater Components WD02X10067 Heater Nut and Ground Clip Plastic tub dishwashers have a grounding clip installed on the tub The heater is then grounded to the clip by a grounding nut The grounding nut must be installed back on the grounding clip The grounding clip and nut is critical for proper operation of the CSM NOTE When replacing the heat element ...

Page 36: ...ot come on Check resistance connector J503 1 White Red to Pin 2 Violet 14 29 ohms Yes No Check heating element and wiring replace as needed Check thermistor connec ons and DC harness are they OK No Yes Check Thermistor is it within speciﬁca ons Replace harness No Replace Thermistor Yes Replace Main Control Access main control enter service mode Check for 120 VAC connector at J503 1 WR to J503 2 VX...

Page 37: ...the dishwasher machine compartment The toe kick prevents injury from electrical components under the dishwasher To remove the panel remove two 1 4 inch hex head screws and pull the panel away from the dishwasher Junction Box and House Wiring Connection The junction box is located behind the toe kick on the right hand side of the dishwasher The junction box is where the 120 VAC house voltage connec...

Page 38: ...ile the dishwasher remains installed Information on door removal can be found under the Door section found later in this section of the service guide Black Spring Wishbone Link Hinge Arm 2 1 1 Use bottom nut to level the dishwasher 2 Tighten top nut to make leg secure Leveling Legs There are four leveling legs located on the base rails of the dishwasher To access the leveling legs remove the toe k...

Page 39: ...e The water valve is located in the front left corner under the dishwasher Components Pressure Switch Fill System To check for proper water level place the dishwasher in Service Mode and run the Fill Test Water must reach the level shown below A pressure switch is used to monitor water level The switch provides feedback to the control The pressure switch is located on the front of the sump Water L...

Page 40: ...the connector from the sensor and test for 5 VDC between pin 2 and pin 3 on the sensor To verify the sensor is properly sending the water level signal to the machine control test for frequency 0 to 5 VDC between pin 7 and pin 6 on the machine control connector J603 Use the chart under No Fill Diagnostics later in this section to determine if the output frequency corresponds to the water level obse...

Page 41: ...ide Tab Guide Tab Guide Guide Fill Valve 1 Remove power to the dishwasher 2 Remove the toe kick 3 Remove one 1 4 inch hex head screw from the bracket to the left leg assembly 4 Slide the bracket off of the leg towards the front of the dishwasher 5 Remove the wire harness 6 Remove the fill hose by using pliers to remove tension on the spring clamp ...

Page 42: ...he fill level correct No Yes Was the fill time 60 seconds Yes No Check for 13 5 DCV at Water Valve No Replace Water Valve Access main control remove J806 connector Is resistance pin 1 OS to pin 2 SX 32 Ohms Yes Replace main control No Repair or replace wire harness No repair needed possible home water pressure fluctuation Check for house plumbing fault kinked fill line restricted water valve scree...

Page 43: ...ce at high critical demand rates For more on the module and display refer to the separate smart appliance documents The machine control board houses all the logic The service LED has a continuous flash which only advises the main control has power The service LED no longer has any blink patterns which were used to aid diagnostics in the past WARNING GEA Factory Service Technicians are REQUIRED to ...

Page 44: ...n box cover 4 Remove the 1 4 inch hex head screw on control box 5 Pull down on the bottom cover at the front of the control box While pulling down on the front of the bottom cover slide the cover forward to clear the back lip and junction box bracket 6 Pull cover and control forward taking care not to damage the board or the wiring 7 To remove the control board from the bottom cover remove the gro...

Page 45: ...tial causes have been ruled out Potential causes of current leakage to ground could be due to water leaking onto a live component a component malfunction or a fault within the wiring harness If water caused the CSM to trip the leak must be repaired The dishwasher may run until a leak causes the trip to reoccur Resetting the CSM without fixing the underlying issue will likely result in a repeat cal...

Page 46: ...120 VAC from J504 1 dark blue to J504 2 yellow and if voltage is good replace the drain pump Drain Pump Check Valve Dark Blue Yellow J504 1 J504 2 Drain Pump TP503 TP504 Drain System Failure to Drain Symptoms F56 fault code Water left in tub Dishwasher not completing cycle Dishwasher will not fill Clean indicator LED not coming on Detergent cup not opening User interface turning off Failure to Dra...

Page 47: ... 47 Failure to Drain Flowchart ...

Page 48: ...e Tub section of this service guide 3 Remove the sump assembly see Sump Module Removal under Sump Module in the Tub section of this service guide 4 Press in on the locking tab 5 Rotate the pump assembly counter clockwise CCW as viewed from the front of the pump to remove Drain Pump 6 Pull out on the pump to finish removal ...

Page 49: ... formed into a hook as shown below 6 Lift the left cable up and slide it down and away from the dishwasher Do not release tension from the cable 7 Slide the left cable into the cable holder to prevent spring from disconnecting from the cable Door Door Removal The door receives DC voltage only and has a screwless appearance The door contains a User Interface UI board with all tactile switches on th...

Page 50: ... door onto the hinge arms 2 As the door drops approximately 2 inches let the top of the door fall away from the dishwasher and it will drop into place WARNING GEA Factory Service Technicians are REQUIRED to follow Lockout Tagout LOTO 6 Step Process prior to beginning repair 8 Locate the right door balance cable and insert an Allen wrench or tool formed into a hook as shown below 9 Lift the right c...

Page 51: ...chment tabs into the cutouts of the outer panel 3 Press the tabs firmly together while sliding the inner panel onto the outer panel using care to make sure the outer panel mates properly to the front or top console The illustration below has a portion of the door sectioned or cut out to show the outer door panel engaged with the attach tabs of the inner door 4 Reinstall screws and reinstall the do...

Page 52: ...inuity through the user interface harness If the harness has good continuity and there is 13 5 VDC at user interface board J101 pin 1 grey to J101 pin 2 dark blue navy replace user interface board There are several front control User Interface UI configurations There is a 2 3 and 4 button configuration This section will cover the front control console removal UI control board removal and UI diagno...

Page 53: ...does not need to be separated End View Door Gasket Detergent Dispenser The detergent dispenser is solenoid operated using 13 5 VDC to activate the solenoid The rinse aid dispenser holds 3 5 oz 100 ml of rinse agent Under normal conditions this will last approximately one month The module receives 13 5 VDC for 5 seconds to activate the detergent cup To activate the rinse aid the module receives 13 ...

Page 54: ...emove power to the dishwasher 2 Remove and separate the door 3 Remove the EPS cover double back tape is used to secure and is reusable when reinstalling the EPS cover UP must be toward the top of the door 4 Remove six 1 4 inch hex head screws 5 Mounting plate removes from inside the door Mounting Plate Door Strike The door strike is attached to the inner door panel Door Strike Removal 1 Remove and...

Page 55: ...ads Wake up the control Press and hold the Start pad with the door closed then open the door for 3 seconds close the door and release the Start pad The Clean or Heavy light will turn on For Models with 3 or More Pads Wake up the control Press and hold the furthest most pad on the left and the Start pad simultaneously for 5 seconds Door Status Check On entry into Error Mode the control reports the ...

Page 56: ...or models with three or more pads press the furthest most pad on left and Start pads together momentarily or will time out after approximately 5 minutes Start LED Blinks Load to Control Timeout Notes 1 Drain Pump Attempts to automatically empty tub Takes appx 75 seconds from normal level 2 Water Valve Attempts to automatically fill tub to normal volume Takes appx 1 minute 3 Circulation Pump Change...

Page 57: ...ck the supply voltage Supply voltage is greater than 170V 8 dLF Door Latch Failure Check door latch for resistance between pin 1 dark blue and pin 3 yellow at the latch with the door closed Check continuity of the harness Check connector J603 to verify pin 1 and pin 2 has no continuity Power cycle to exit 9 PrS Pressure Sensor Failure Verify pressure sensor harness has continuity Unplug plug harne...

Page 58: ...erminals are not bent inside connector housing F59 Dry Heater Thermistor Error Out of Range Low Check that thermistor harness is plugged in Check that terminals are not bent inside connector housing F60 Heater Relay Stuck On Fault Clear faults and cycle power to unit If fault reoccurs within 60 seconds of power up replace MC board F61 CSM Check Failed Cycle power and start cycle to clear fault If ...

Page 59: ...l Check incoming power supply for correct voltage levels F159 Circulation Pump Fuse Fault The control has detected a blown fuse on the machine control board to the circulation pump and the machine control board Demo Mode Entering Exiting Demo Mode For Models with 1 or 2 Pads Models with 1 or 2 pads do not have a Demo Mode For Models with 3 or More Pads Press the Dry and Start pads together momenta...

Page 60: ...ack B White W Brown C Yellow Y Green G Orange O Blue N Grey S Orange O Red R Red R Dark Blue Navy N Grey S Brown C Purple V Purple V White W Green G Yellow Y Lt Blue Aqua A None X Pink P Tan T Wire color indicated by two character code Example BW is black with white stripe BX is solid black ...

Page 61: ...e 52 Front Control UI 52 Fuse 27 H Heat Element 34 Heater Clip 16 Heater Tower Nuts 15 High Drain Loop 14 19 Hose 19 39 J Junction Box 37 L Latch Cam 16 Latch System 32 Leveling Legs 38 Lower Spray Arm 10 17 23 29 M Main Board 27 Main Conduit 23 29 Main Control Board 12 43 44 Main Control Diagnostics 12 Middle Spray Arm 29 N Nomenclature 7 P Pressure Sensor 16 39 40 57 58 Product Specifications 8 ...

Search results

Summary of Contents for GE GDF450P R0 Series

Reviews:

Related manuals for GE GDF450P R0 Series

Brands by name

Popular brands

Haier GE GDF450P R0 Series, Technical Service Manual

Search results

Summary of Contents for GE GDF450P R0 Series

Reviews:

Related manuals for GE GDF450P R0 Series

Brands by name

Popular brands