Haier GE GDF450P R0 Series How to use

31-9354
2020 Plastic Tub Value Model
Dishwasher
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**

– 2 –
Safety Information
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, a Haier Company
Copyright © 2021
All rights reserved. This service guide may not be
reproduced in whole or in part in any form without written
permission from GE Appliances, a Haier Company.
For Warranty Information:
1. Go to http://products.geappliances.com
2. Search the model number.
3. Click on the Literature tab.
4. Click on Use and Care Manual.
5. Locate the Warranty page.
Warranty

– 3 – (Continued next page)
Table of Contents
Safety Information ........................................................................................................................2
Warranty .......................................................................................................................................2
Table of Contents..........................................................................................................................3
Safety Requirements....................................................................................................................6
Nomenclature ...............................................................................................................................7
Specications ..............................................................................................................................8
Product Specications ..........................................................................................................8
Electrical Specications........................................................................................................8
Operation 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 System................................................................................................................25

– 4 –
Circulation Diagnostics .........................................................................................................26
No Circulation ......................................................................................................................27
Circulation Motor and Pump Assembly.................................................................................28
Main Conduit ........................................................................................................................29
Middle Conduit......................................................................................................................29
Spray Arms ...........................................................................................................................29
Upper Rack...........................................................................................................................30
Lower Rack...........................................................................................................................30
Tub Gasket ...........................................................................................................................31
Latch System........................................................................................................................32
Dry System ...........................................................................................................................33
Heat Element Removal.........................................................................................................34
Heater Components .............................................................................................................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 Flowchart ....................................................................................................47
Drain Pump...........................................................................................................................48
(Continued next page)

– 5 –
Door..............................................................................................................................................49
Door Removal.......................................................................................................................49
Outer Door Panel..................................................................................................................51
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

– 6 –
Prior to disassembly of the dishwasher to access components,
GEA Factory Service technicians are REQUIRED to follow the
Lockout / Tagout (LOTO) 6 Step Process:
Safety Requirements
GEA Factory Service Employees are required to use safety glasses with side shields, safety gloves and
steel 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 Glasses
Prescription Safety Glasses
Safety Glasses must be
ANSI Z87.1-2003 compliant

– 7 –
Nomenclature
Model Number
G D F 5 3 5 P G R 0 B B
Brand
G: GE
H: Hotpoint
Conguration
D: Built-In
Wash System
4: Low
5: Mid
6: Mid/Bottle Wash
7: Mid/Silverware Wash
Feature Pack
0 - 99
Exterior Finish
G: Generic Color (Gloss)
S: Stainless
Engineering
Digit
0 - 99
Color
BB: Black
CC: Bisque
SS: Stainless
WW: White
Model Year
R: 2021
Control Appearance
F: Front Control
Interior Material
P: Plastic Tub and Inner Door
Serial Number
The rst 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 Manual
(located in between the inner and outer panel at
the bottom of the outer panel)
The nomenclature breaks down and explains what the letters and numbers mean in the model number.

– 8 –
Specications
AC Voltage
• Circulation Pump: 120 VAC, .8 amp to 3.8
LRA, 8 GPM @ 5 PSI
• Drain Pump: 120 VAC, ~40 Ω*, .65 amp, ~70
second cycle
• Main Control: Input 120 VAC, Output 120
VAC, and Output 5 and 13.5 VDC
Heater 120 VAC
Wet Dry
Watts 800 500 +/- 5%
Ohms 18 28.8 +/- 5%
Amps 6.67 4.17 +/- 5%
Thermistor Specications
Resistance Temperature
20k 50°F
11k 75°F
5.8k 100°F
3.4k 125°F
2.1k 150°F
1.3k 175°F
Product Specications
Electrical Specications
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 VDC to LED, 10K Ω
• Approximate Shipping Weight (lb.) ~ 70 pounds (depending on model)
• Height w/ Legs Retracted (in.) 33 3/8-in.
• Height w/Legs Extended (in.) 34 5/8-in.
• Overall Width (in.) 24 3/4-in.
• Overall Depth (in.) 24-in.

– 9 –
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
At the beginning of the main wash, the dishwasher checks the temperature of the water, and if it is
below 90°F, then it will add up to 10 minutes of time to heat the water to 90°F by circulating the water
while the heater is on. Similarly, at the beginning of the nal rinse, the dishwasher will check the water
temperature, and if it is below 105°F, then it will add up to 15 minutes of time to heat the water to 105°F.
Once it reaches the target temperature, any remaining hot start time will be truncated and will continue
on with the cycle.
The cycle chart below explains the segments of a cycle (cycles for all models included, but not all
models contain the same cycles). It details ll 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 Duty
All Zones
No
Options 16 87 143 60 140 209
Boost
Dry 191 247 164
Heated
Dry 141 207 124
Bottle
Wash 110 166 83
Temp
Boost 141 156
Sani-
Steam 185 176
Bottle
Wash
Boost
Dry 214 270 187
Temp
Boost
Boost
Dry 246 260
Sani-
Steam
Boost
Dry 290 280
Bottle
Wash
Heated
Dry 163 230 147
Temp
Boost
Heated
Dry 205 220
Sani-
Steam
Heated
Dry 250 240
Temp
Boost
Bottle
Wash
Boost
Dry 268 283
Sani-
Steam
Bottle
Wash
Boost
Dry 313 303
Sani-
Steam
Temp
Boost
Boost
Dry 290 280
Temp
Boost
Bottle
Wash
Heated
Dry 229 243
Sani-
Steam
Bottle
Wash
Heated
Dry 273 263
Sani-
Steam
Temp
Boost
Heated
Dry 250 240
Sani-
Steam
Temp
Boost
Bottle
Wash
Boost
Dry 313 303
Sani-
Steam
Temp
Boost
Bottle
Wash
Heated
Dry 273 263

– 10 –
NOTES:
Cycle times will vary depending on options selected, incoming water temperature, and soil level (some
models).
• Incoming water temperature of 120°F to 140°F is recommended.
• Circulation has built-in pauses (see Two Port Diverter 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 Times (Estimated)
Cycle Algorithm Comparisons
Segment Description Diverter
Position
Zonal
Use Rinse
Normal Normal+Temp
Boost Heavy 1-Hour /
Express Everyday Heavy Duty
Light Soil Heavy Soil
PW1
Fill (gal)
Circ (min)
Heat
Drain
30 LSA/
30 USA No
0.75
10
No
Empty
0.75
4
No
Empty
0.80
7
No
Empty
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)
Heat
Drain
180 LSA/
180 USA
Yes will
Shorten
~30%
0.75
40
Yes
Empty
0.75
55
Yes
Empty
0.80
45
Yes
Empty
0.90
17
Yes
Empty
0.80
35
Yes
Empty
0.80
45
Yes
Empty
PR1
Fill (gal)
Circ (min)
Heat
Drain
180 LSA/
180 USA
Yes will
Shorten
~30%
0.90
12
No
Empty
0.90
12
Yes
Empty
0.90
4
No
Empty
0.75
9
No
Empty
0.75
9
No
Empty
PR2
Fill (gal)
Circ (min)
Heat
Drain
60 LSA/
60 USA
Yes will
Shorten
~30%
0.70
4
No
Empty
0.70
4
No
Empty
0.80
4
No
Empty
0.90
4
No Empty
0.75
5
Yes
Empty
Final
Rinse
Fill (gal)
Circ (min)
Heat
Drain
60 LSA/
120 USA No
0.95
5
No
Empty
0.75
22
Yes
Empty
0.60
30
Yes
Empty
0.90
30
Yes
Empty
0.90
9
Yes
Empty
0.75
15
Yes
Empty
0.90
30
Yes
Empty

– 11 –
Target / Max Temperature Limits
Cycle PW MW Rinse FR
Normal N/A 125 N/A 140
Heavy 130 130 130 145
1-Hour N/A 135 N/A 140
Everyday N/A 125 N/A 140
Heavy Duty N/A 130 130 145
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

– 12 –
Troubleshooting
• Check voltage input to the dishwasher.
• Verify door switch operation, consult Consumer Error Mode, in the Electronic Controls section of
this service guide.
• Door must be closed within 5 seconds of pressing Start Pad (Safety Feature).
• Check the main board Service LED (see Main Control Board under Structure in this guide).
• Verify that the dishwasher is not in Demo Mode.
• CSM (Current Sense Module) tripped. Please refer to the Current Sensor Module (CSM) section
under Structure in this service guide.
This troubleshooting section is an overview of diagnostic capabilities of the electronic control. The
control also features retrieval of fault codes when Consumer Error Mode is initiated; operation of loads
is achieved in Service Mode.
Details 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 ash, this indicates the dishwasher door may be in the open
position. If the User Interface (UI) is ashing all of the LED's, this is an indication of a tripped CSM
(Current Sense Module) and the dishwasher is non-responsive, all the LED's will ash until the CSM is
reset. CSM diagnostics are covered in this service guide.
Flashing Lights
Will Not Start
Symptom: If the start button either does not respond or it makes a triple beep sound every time it’s
pressed AND all other buttons respond as normal.
Diagnosis: The dishwasher may be in Demo Mode.
Solution: To exit Demo Mode, For models with three or more pads, press the Dry and Start pads
together momentarily within 5 minutes of powering on the dishwasher. Note:Models with one or
two pads do not have a Demo Mode.

– 13 –
Component Locator Views
Appearances may vary throughout 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

– 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

– 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

– 16 –
Inside Tub (Bottom) View
Sump (Bottom) 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

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

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

– 19 –
Tub
(Continued next page)
Sump Module
Located on the top side of the sump are the
diverter components. The bottom of the diverter
is molded into the sump. A check ball or two-port
diverter IS used in these models.
Components on the bottom of the sump include
a pressure switch, thermistor, drain pump, and
circulation pump.
The sump module is front serviceable with the
dishwasher remaining in the installed location
by removing the door for easier access. This
section of the guide only covers the sump
removal. Components and diagnostics of the
sump module may be found in 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).
6. Remove the ultra-ne lter by turning counter-
clockwise (CCW) to remove, then remove the
ne lter.
7. Remove the main conduit (see Circulation
System in this section of the service guide).
8. Loosen the high drain loop hose clamp (1/4-
in. hex-head) and remove the hose from the
drain pump (there will be a small amount of
water in the sump, pump and hose).
High Drain Loop Hose

– 20 –
9. Disconnect the thermistor sensor harness.
10. Remove the pressure switch (refer to the
pressure switch portion of the ll section of
this guide).
11. Unlatch the three sump latches. All three
latches can be reached from the front of
the dishwasher in most installations. If the
dishwasher does not have the legs extended;
the dishwasher may have to be removed from
its installed 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 rst. 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
pump wiring and ood switch wiring.
Appearances may vary throughout this service
guide. Some models do not have all features
shown or may be different depending the model
number.