GE GDF510PxJ Series How to use

GE Appliances
Louisville, Kentucky 40225 31-9244
2015 Plastic Tub Dishwasher
Technical Service Guide
October 2015
GE Appliances
GDF510PxJxx
GDF520PxJxx
ADT521PGJxx
GDT535PxJxx
GDT545PxJxx
GDF610PxJxx
GDF620HxJxx
GDT625PxJxx
GDT635HxJxx

– 2 –
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
this product. If electrical 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
Technical Service Guide
Copyright © 2015
All rights reserved. This service guide may not be reproduced in whole or in part
in any form without written permission from the General Electric Company.
Safety Information

– 3 – (Continued next page)
Table of Contents
Safety Information..........................................................................................................................................................................2
Table of Contents.............................................................................................................................................................................3
Safety Requirements.....................................................................................................................................................................6
Nomenclature...................................................................................................................................................................................7
Introduction.......................................................................................................................................................................................8
3URGXFW6SHFL¿FDWLRQV.................................................................................................................................................................8
(OHFWULFDO6SHFL¿FDWLRQV ..............................................................................................................................................................9
Tools Needed.....................................................................................................................................................................................9
Operation and Cycle Information............................................................................................................................................10
Troubleshooting...............................................................................................................................................................................13
Flashing Lights.......................................................................................................................................................................13
Will Not Start...........................................................................................................................................................................13
Component Locator Views..........................................................................................................................................................14
Tub and Structure............................................................................................................................................................................20
Tub Trim (some models) ....................................................................................................................................................20
Toe Kick......................................................................................................................................................................................20
Junction Box and House Wiring Connection...........................................................................................................20
Level Legs.................................................................................................................................................................................21
Door Balance System.........................................................................................................................................................21
Hinges .......................................................................................................................................................................................21
Tub Gasket...............................................................................................................................................................................22
Latch System..........................................................................................................................................................................23
Latch Switch Diagnosis......................................................................................................................................................23
Racks..........................................................................................................................................................................................24
Lower Rack.................................................................................................................................................................................25
Silverware Baskets...............................................................................................................................................................26
Door.............................................................................................................................................................................................26
Inner Door Vent Cover .......................................................................................................................................................28
Front Control Console.........................................................................................................................................................29
Front Control UI, Light Pipe and Buttons....................................................................................................................30
Pocket Handle (Front Control Only)...............................................................................................................................30

– 4 –
Top Control Panel, UI, Light Pipe and Buttons.........................................................................................................31
Top Control Console Cover...............................................................................................................................................32
Outer Door Panel...................................................................................................................................................................32
Inner Door Panel .................................................................................................................................................................33
Door Gasket.............................................................................................................................................................................33
Vent Parts.................................................................................................................................................................................33
Detergent Dispenser...........................................................................................................................................................34
Door Strike................................................................................................................................................................................35
Sump Module..........................................................................................................................................................................36
Sump Gasket ..........................................................................................................................................................................38
Installing Sump Module.....................................................................................................................................................38
Consumer Error Mode.........................................................................................................................................................39
Electronic Controls..........................................................................................................................................................................39
Service Mode...........................................................................................................................................................................40
Diagnosing Electronic Control Boards........................................................................................................................40
Main Control Diagnostics..................................................................................................................................................41
On the Main Control Board CSM....................................................................................................................................42
UI Diagnostics.........................................................................................................................................................................44
Water Level..............................................................................................................................................................................45
Fill System...........................................................................................................................................................................................45
Diagnostics..............................................................................................................................................................................46
Flood Switch and Thermistor..........................................................................................................................................47
Thermistor................................................................................................................................................................................48
Fill Funnel and Hose ...........................................................................................................................................................48
Fill Valve.....................................................................................................................................................................................49
Circulation System..........................................................................................................................................................................50
Diagnostics..............................................................................................................................................................................51
No Circulation.........................................................................................................................................................................52
Filtration....................................................................................................................................................................................53
Circulation Motor and Pump Assembly......................................................................................................................54
Diverter......................................................................................................................................................................................54
Turbidity Sensor.....................................................................................................................................................................57
Conduits and Spray Arms.................................................................................................................................................58

– 5 –
Main Conduit...........................................................................................................................................................................59
Spray Arms...............................................................................................................................................................................59
Middle Conduit.......................................................................................................................................................................60
Bottle Wash System (some models).............................................................................................................................61
Upper Spray System............................................................................................................................................................ 61
Drain System.....................................................................................................................................................................................62
Diagnostics..............................................................................................................................................................................63
Dry System.........................................................................................................................................................................................65
Heat Element Removal.......................................................................................................................................................67
Tub TCO.....................................................................................................................................................................................67
9HQWLQJ$LUÀRZ....................................................................................................................................................................67
Schematics.........................................................................................................................................................................................68
GDF520J....................................................................................................................................................................................68
GDF610J....................................................................................................................................................................................68
GDT535J....................................................................................................................................................................................69
ADT521J, GDF610J, GDF620J, GDT545J, GDT625J, GDT635J..........................................................................70
Index......................................................................................................................................................................................................71
Dishwasher Warranty...................................................................................................................................................................73

– 6 –
Prior to disassembly of the dishwasher to access components, GE
Factory Service technicians are REQUIRED to follow the Lockout /
Tagout (LOTO) 6 Step Process:
Safety Requirements
GE Factory Service Employees are required to use safety glasses with side shields, safety gloves and
steel toe shoes for all repairs.
Steel Toed Work Boot Electrically Rated Glove and
Dyneema® Cut Resistant
Glove Keeper Dyneema®Cut Resistant
Glove
Plano Type Safety Glasses
Prescription Safety Glasses
Safety Glasses must be ANSI
Z87.1-2003 compliant
Brazing Glasses
Cut Resistant Sleeve(s)
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

– 7 –
Nomenclature
Brand
H - Hotpoint
G - GE
P - Profile
C - Café
Z - Monogram
L - Lowes
D - Adora
S - Sears
A - Americana
G D T 6 3 5 H M J 0 E S
Configuration
D - Built-in
P - Portable
Feature Package
0 - 99
Engineering Digit
0 - 99
Model Year
J - 2015
Interior Material
H - Hybrid (Plastic Tub/SS Inner Door)
P - Plastic Tub/Inner Door
S - Stainless Tub/Inner Door
Exterior Finish
G - Generic Color (Glass)
I - Panel Ready
M - Metallic
P - Pro
S - Stainless
Color
WW - White
CC - Bisque
BB - Black
II - Panel Ready
SA - Silver Metallic
SS - Stainless
ES - Slate
Control Appearance
F - Front Control
T - Top Control
R - Top Control
with Recessed Handle
Wash System
3 - Low
5 - Mid
6 - Mid/Bottle Wash
7 - High
8 - Monogram
The nomenclature breaks down and explains what the letters and numbers mean in the model number.
Serial Number
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designating the year repeats every 12 years.
Example: LA123456S = June, 2013
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 Manual

– 8 –
Introduction
What’s New:
• GE's most advanced wash system delivers 65% more cleaning power to each rack
• Enhanced performance ensures items are thoroughly washed and table-ready, along with powerful jets
that are directed to the locations where the silverware baskets can be placed
• New diverter allowing alternating spray arms
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• GDF510PxJxx and GDT535PxJxx have 2 Level Wash System: Lower Spray Arm and Mid Spray Arm
• GDF520PxJxx, ADT521PGJxx, GDF610PxJxx, GDT545PxJxx, GDT635PxJxx have 3 Level Wash System:
Lower Spray Arm and Mid Spray Arm with new Upper Spray System
• Steam Prewash (some models) loosens tough soils before any cycle, virtually eliminating the need for
soaking or pre-rinsing dishes.
• Piranha hard food disposer
• 80% Recyclability
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Approximate Shipping Weight (lb) ~ 70 pounds (depending model)
Height w/ Legs Retracted (in.) 33 3/8"
Height w/Legs Extended (in.) 34 5/8"
Overall Width (in.) 23 3/4"
Overall Depth (in.) 24"

– 9 –
Tools Needed
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AC Voltage
• Circulation Pump: 120 VAC, .8 amp – 3.8 LRA, 8GPM @ 5PSI
• Drain Pump: 120 VAC, 27 ohms, .65 amp, ~70 second cycle
•
• Tub TCO: 120 VAC, 210°F +/- 10°F Manual Reset
• Main Control: Input 120 VAC, Output 120 VAC, and Output 5 & 13.5 VDC
DC Voltage
• Door Switch: 13.5 VDC
• Water Valve: 13.5 VDC, 32 ohms, .83 GPM, ~1 minute cycle time
• UI Control: 13.5 VDC (some models have 13.5 VDC output to detergent module)
• Detergent Cup: 13.5 VDC, 25 ohms, .5 second to release detergent cup, 15 seconds to release rinse aid
• Turbidity Sensor: 5 VDC to LED, 10K ohms
• Flood Switch: 13.5 VDC, .42 amp
•
1/4” & 5/16” nut driver
R2 Quadrex bit
#15 and #20 Torx bits
#2 Phillips head screw driver
Two 5/32” Allen wrench’s (or similar size tool, see the
Door Removal section in this guide)
Adjustable wrench
Two pocket type screwdrivers
Pliers and needle nose pliers
Volt / Ohm meter (AC, DC, and ohms) with “Needle”
Type Probes
Optional: Clear door (Part #: WX05X20002)
Heater 120 VAC
Wet Dry
Watts 793 625 +/- 5%
Ohms 16.4 23.2 +/- 5%
Amps 6.6 5.2 +/- 5%
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Resistance Temperature
20k 50°F
11k 75°F
5.8k 100°F
3.4k 125°F
2.1k 150°F
1.3k 175°F

– 10 –
Operation and Cycle Information
This section of the guide provides details on segments of cycles, timing of cycles, temperature expectations
and cycling of the heater during the dry portion of a cycle.
Auto Hot Start
If incoming water temperature is below 80°F, Auto Hot Start is initiated at the beginning of the cycle in an
attempt to purge the home water lines of cooler water. Auto Hot Start can add up to 10 minutes to overall
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repeating this sequence if the 80 degree temperature is not met. The dishwasher can repeat this up to 3
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segment of the cycle.
Cycle Times
Times will vary depending on options selected, incoming water temperature, and soil level (some models).
Incoming water temperature of 120°F - 140°F is recommended. The 4 pass heating element quickly heats
the water for optimum performance.
The Cycle Chart below explains the segments of a cycle (cycles for all models included, not all models contain
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circulation time in each segment, but does not include dry cycles (see the Dry System section in this guide).
Times will vary depending on turbidity response and incoming water temperature.
Cycle Algorithm Comparisons
Segment Description Diverter
Position Zonal Use Calrod Light Normal AutoSense Heavy
Fixed Light
Soil Heavy Soil Light Soil Heavy Soil
PW1 Fill (sec)
Circ (min)
Drain
Upper No OFF 60
5
Empty
60
5
Empty
60
5
Empty
60
5
Empty
60
5
Empty
60
5
Empty
PW2 Fill (sec)
Circ (min)
Drain
Lower No OFF 60
5.5
Empty
60
5.5
Empty
60
5.5
Empty
PW3 Fill (sec)
Circ (min)
Drain
60LSA/
60USA No OFF 60
4
None
60
5
Empty
60
5
Empty
60
5
Empty
PW4 Fill (sec)
Circ (min)
Drain
60LSA/
60USA Yes
Shorten
~30%
ON 60
15
Empty
Main
Wash Fill (sec)
Circ (min)
Drain
180USA/
180LSA Yes will Shorten
~30%
ON 0
20
Empty
60
41
Empty
60
40
Empty
60
40
Empty
60
45
Empty
60
45
Empty
60
45
Empty
PR1 Fill (sec)
Circ (min)
Drain
180LSA/
180USA No on Norm/
auto;
Yes on
Heavy
OFF 60
12
Empty
60
12
Empty
60
12
Empty
60
15
Empty
PR2 Fill (sec)
Circ (min)
Drain
60 LSA/
60 USA No OFF 60
4
Empty
60
5
Empty
60
5
Empty
60
5
Empty
60
5
Empty
60
5
Empty
0.8
5
Empty
Sani
Rinse Fill (sec)
Circ (min)
Drain
Upper No ON
Final
Rinse Fill (sec)
Circ (min)
Drain
60LSA/
120USA No ON 60
13
Empty
60
15
Empty
60
15
Empty
60
15
Empty
60
30
Empty
60
30
Empty
60
30
Empty

– 11 –
NOTES:
• The previous chart has maximum segment parameters listed. The control will bypass some rinse cycles
if the turbidity sensor detects lower soil than the selected cycle maximum parameter and temperature
targets are met.
• Selecting the Wash Temp option will add 5 minutes to Pre-Wash 4 (PR4) and Post-Rrinse 1 (PW1). This
extra time is used to heat water.
• The Steam option will change the segments Pre-Wash 4 (PW4), (increasing heater operation).
• The Bottle Wash option (some models) may increase the cycle time, adding up to 23 minutes; water
usage does not change.
• Circulation has built in pauses (see Diverter, Operation in the Circulation System section of this guide).
• USA (Upper Spray Arm): When a number is placed before the USA, it indicates the approximate time in
seconds of operation.
• LSA (Lower Spray Arm): When a number is placed before LSA, it indicates the approximate time in
seconds of operation.
• PW: Pre Wash
• PR: Post Rinse
• FR: Final Rinse
Cycle Option Selected Light Normal
Fixed Normal Sensor Auto Heavy
All Zones
No
Options 49 - 72 76 75 110 147
Heated
Dry 113 - 136 124 123 174 211 - 235
Boost 140 111 134 157 - 181
Sani 185 155 170 202 - 225
Steam 104 118 137 157 - 180
Boost Heated
Dry 204 175 198 221 - 245
Sani Heated
Dry 249 219 234 266 - 289
Steam Heated
Dry 152 182 201 221 - 244
Steam Boost 168 138 161 162 - 185
Steam Sani 212 182 197 207 - 230
Steam Boost Heated
Dry 232 202 225 226 - 249
Steam Sani Heated
Dry 276 246 261 271 - 294
One Wash Zone Selected
(some models)
No
Options 57 79 - 105 - 129
24% 28% 28%
Heated
Dry 105 143 169 - 193
Boost 78 109 115 - 139
Sani 132 149 170 - 193
Steam 90 106 122 - 145
Boost Heated
Dry 142 173 179 - 203
Sani Heated
Dry 196 - 254 213 - 252 234 - 257
Steam Heated
Dry 154 - 213 170 - 209 186 - 209
Steam Boost 105 - 162 136 - 174 127 - 150
Steam Sani 159 - 217 176 - 215 182 - 205
Steam Boost Heated
Dry 169 - 226 200 - 238 191 - 214
Steam Sani Heated
Dry 223 - 271 240 - 279 246 - 269
Minimum and Maximum Times

– 12 –
4 Pass Heater Algorithm, Dry Cycle
Normal with Heated Dry
Time (minutes) Calrod Description
6 Calrod on
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14 &DOURGRȺ&RRO'RZQ
Normal with Temp Boost or Sani Selected
6 Calrod on
58 &DOURG3XOVHPLQXWHRQPLQXWHRȺ
Target / Max Temperature Limits
Cycle PW4 MW PR1 FR
Rinse
Light 125 135
Normal 125 140
Auto 130 140
Heavy 130 130 130 145
Heavy +AH 135 135 130 145
CU NA 130 NA 135
Heated Dry Element Algorithm

– 13 –
This troubleshooting section is an overview of diagnostic capabilities of the electronic control. The control
features allow retrieval of error codes, operation of loads in service mode and further diagnostics of the
electronic controls are possible with the use of the Service LED on the main control board. Details on
Consumer Error Mode and Service Mode, as well as Service LED are located in the Electronic Control section
of this guide.
To view the Service LED, disconnect power, lower the control box bottom cover and reapply power to the
dishwasher when the control is in a safe position.
Troubleshooting
Service LED
Will Not Start
• Check voltage input to the dishwasher.
• Verify door switch operation, consult Fault Code
Mode.
• Start pad must be pressed within 5 to 10
seconds of closing the door (Safety Feature).
• Check main board Service LED (see Main
Control Diagnostics in Electronic Controls).
• Verify that the dishwasher is not in demo mode
(see table in Main Control Diagnostics in the
Electronic Controls section of this guide).
• CSM (Current Sense Module) tripped. Please
refer to On the Main Control Board CSM in the
Electronic Controls section of this guide.
Symptom: If the dishwasher is “dead”, no LED
operation, no button operation or beeping occurs.
Diagnosis: Attempt placing the dishwasher in
Consumer Error Mode.
Cure: The CSM (Current Sense Module) is tripped
and must be fully diagnosed. Refer to On the Main
Control Board CSM section of this guide.
Symptom: If the start button either does not
respond or it makes a triple beep soundevery
time it’s pressed AND all other buttons respond as
normal.
Diagnosis: The dishwasher may be in demo mode.
Cure: To exit demo mode, hold “START” and
“HEATED DRY” at the same time for 5 seconds.
Flashing Lights
Flashing LED's or Display (some models) is an indication that the control is waiting for a start command or
that the door is in the open position. There are no fault codes that will automatically display or cause a no-
run condition. If board communications are an issue, look for a fault on the main control board Service LED.
All of the above diagnostics are covered in this service guide.

– 14 – (Continued next page)
Component Locator Views
Front Control
Latch Switch
Pocket Handle
Buttons
Indicator LED's
Vent
Front Control Console
Door
Panel
Latch Switch
Handle
Buttons
Vent
Front Control
Console
Top Control

– 15 –
High Drain Loop
Fill Hose
Fill Cup
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Cables, Balance
Toe Kick
Insulation
(some models)
Springs,
Balance Roller,
Balance
Toe Kick Area
Side
Control Box
Water
Valve
Drain
Loop
Junction
Box
Insulation
(some models)
Toe Kick
Screws
Toe
Kick

– 16 –
Back
Heater Mounting Nuts Sump High Drain Loop Hose
Bottom
Level Leg
Water Valve
Fill Hose
Sump
High Drain
Loop Hose
Junction Box
Main Control
Box
Tub TCO
Heater
Mountings Nuts

– 17 –
Sump (Top)
Vent Caps
Fine Filter
Diverter
Sump
Ultra-Fine
Filter
Sump
Gasket
Flood
Switch
Sump (Bottom)
Turbidity
Sensor
Circulation
Pump
Flood Switch
Latch Cam
Sump Module
Drain Motor
Diverter

– 18 –
Inside
Vent
Detergent
Module
Lower
Spray Arm
Mid
Spray Arm
Mid
Conduit Docking
Cone
Upper Rack
Bottle Wash
Manifold
Main
Conduit
4 Pass
Heater
Lower
Rack
Racks
Mid Conduit
Mid Spray Arm
Bottle Wash Hose
and Cover
(some models)
Upper Rack Rollers
and Brackets
Bottle Wash
Manifold
and Jets
(some models)
Upper Rack
Lower Rack
Lower Rack
Rollers
and Carrier

– 19 –
Silverware Basket on Door
Silverware Basket in Bottom Rack

– 20 –
Toe Kick
The toe kick is a decorative panel covering the
machine area of the dishwasher. The panel
provides a safety barrier, closing the front of the
dishwasher machine compartment. The toe kick
prevents injury from electrical components under
the dishwasher. To remove the panel, remove two
1/4 in. 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 connects to
the dishwasher. The dishwasher may be hardwired
or an optional cord may be installed (available
separately, Part #: WX09X70910), which plugs into
a wall outlet and connects to the harness plug into
the control (see Installation Guide). The cover is held
in place with a 1/4 in. hex head screw on the left
side, and tab on the right side. To remove the cover,
remove the screw and pull out and to left to release
the tab.
The Tub and Structure section of this guide will
cover the toe kick, junction box, racks, leveling,
door balance, gaskets, trim (some models), main
control board, door, door components, as well
as the removing and separation of the screwless
appearance door. It will also cover the sump module
and removal. Details of the sump components
will be covered in the Circulation System or Drain
System sections of this guide.
Tub Trim (some models)
Some models include tub trim which clips to the
plastic tub to reduce sound levels and provides a
cleaner appearance to the installation.
If the cutout prevents the dishwasher from being
fully installed, or if the trim rolls inward preventing
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properly. The wiper edge must contact the cabinet
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Tub and Structure
Tub Trim
Insulation
Block Toe Kick Toe Kick
Screws
Ground Screws
Toe Kick
Insulation
Junction Box
Mounting Screw Junction Box
WARNING: GE Factory Service Technicians are
REQUIRED to follow Lockout / Tagout (LOTO) 6
Step Process prior to beginning repair.