PHS925 GE Profile Induction Free Standing Electric Slide in Range Service Manual
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Transcript of PHS925 GE Profile Induction Free Standing Electric Slide in Range Service Manual
GE Profile Induction Free Standing Electric – Slide In
Range Model:
PHS925 – Single Cavity
Induction Cooktop
Copyright 2011
2 / Copyright General Electric 2011
9/29/2011
IMPORTANT SAFETY NOTICE
The information in this presentation is intended for use by individuals possessing adequate backgrounds of electrical, electronic, & mechanical experience. Any attempt to repair a major appliance may result in personal injury & 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 & properly fastened.
3 / Copyright General Electric 2011
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GE Factory Service Employees are required to use safety glasses with side shields, safety gloves & steel toe shoes for all repairs.
Dyneema® Cut
Resistant Glove
Safety Glasses must be
ANSI Z87.1-2003 compliant
Prescription Safety Glasses
Plano Type Safety Glasses
Steel Toe Work
Boot
Electrically Rated Glove
and Dyneema® Cut
Resistant Glove Keeper
Brazing Glasses
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9/29/2011
Warranty
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9/29/2011
S = 30” FSE Slide In
B = 30” Free Standing
Nomenclature
S
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2011 Front Mount FSE – Slide In
•Extension rack
•Black cavity
•Front control •5 element cooktop
• Induction cooktop
•Warming drawer
•Next step controls
•Hidden Bake •Precise Air Convection
PHS925ST1SS
Features
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• Mini-Manual is located inside the left rear corner of the back of the range.
• The Model/Serial Tag is on the left front frame.
Mini Manual & Nomenclature Tag
Mini-Manual
Nomenclature Tag
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* Range must be secured by the Anti-Tip Bracket supplied.
Anti-Tip Bracket
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NOTE: bAd LinE bAd in display is to signal a terminal block cord
misswire and will appear if 120VAC is not present between J21-
5(N) and J20-3 (L2). It will also appear if there is less than 200VAC
between J20-1 (L1) and J20-3 (L2).
Voltage Monitor
bAd LinE bAd
L1 L2
N
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Demo Kit - Electric Ranges with Backlit Touch keys
Installation Instructions
This kit must be installed by qualified personnel only.
1. Disconnect ground strap from range body (strap must not contact the range structure or ground wire.)
2. Connect green wire to range body using ground strap screw.
3. Connect single black w/ribs or gray stripe wire to the left terminal of the junction block.
4. Connect the larger of the two smooth black wires to the right terminal of the junction block and the smaller to the center terminal. (See Illustration at left.)
5. The cord is to be plugged into a 120V, 60 Hz polarized and grounded outlet.
6. Removal: Reverse the above process making sure the ground strap is reconnected to the range body into the grounding screw.
Sales / Demo Mode
NOTE: Black wire with ribs or
gray stripe is Neutral.
L1 N
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• Oven Heating Elements (Bake, Broil and Convection)
• Induction Module
•Cooktop Warming Element
• Convection Fan
•Warming Drawer
• Door Latch Motor
Demo Kit - Electric Ranges with Backlit Touch keys
The following features are disabled in Demo Mode:
Sales / Demo Mode
• The cord is available as Pub 3-A029.
• There is no change to the cord just how the cord is attached to this model range.
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The new Profile Induction freestanding slide in range has:
•Innovative technology – delivers the responsiveness of gas cooking
•Superior performance – Induction technology heats only the pan and its contents
•Remarkable versatility – This induction cooktop offers the choice of 19 different
power levels, including a 3700-watt, 11 inch element for larger cookware.
•Cooler cooktop surface – Since there is not a traditional thermal heating element,
the induction cooktop stays cooler than conventional radiant cooktop
Induction – A “game changing” technology
for cooking with many features valued by
consumers
Induction Summary
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1. Electronics power a coil under the cooktop
that produces a high-frequency
electromagnetic field.
2. The EM field interacts with ferrous metal
cookware & sets up a circulating electric
current, which generates heat.
3. The heat generated in the cookware is
transferred to the cookware’s contents.
4. Nothing outside the cookware is affected by
the field. As soon as the cookware is
removed from the element, or the element is
turned off, heat generation stops.
Induction Cooking – How It Works
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• Ferro”magnetic” cookware - required
• Glass cooktop
• Flat Coil – usually coated (rope like-multi-
strand wire) – to reduce losses at high
frequency.
• Ferrite Cores to reduce air gap losses.
Induction Cooking - System
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• Cooking Performance: Powerful, commercial type performance
• Versatility: Responsiveness & control similar to gas
• Efficiency: Energy transfers direct to cookware
• Cleanability: Easy-to-clean & wipe-off
• Surface Temperatures: Cooktop remains cool
Induction Cooking - Summary
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One layer must be of magnetic, metal material.
Cast Iron
Clad Cookware Lodge Ware –- enameled cast iron
To test cookware - use a magnet if a magnet clings to the base of the cookware it is induction ready.
Consumer can use a refrigerator magnet to verify.
Compatible Cookware
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• (1) 11”- 3700W Induction element • (2) 7” - 2500W Induction element • (1) 6” - 1800W Induction element •(1) 240V 110W Warming element
3700W
1800W
2500W
2500W 240V
110W
Induction - Specifications
8”
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Important Note: Boost Mode and Power Sharing
The induction coils on the left side are paired for power sharing and both
cannot be used simultaneously on “H”. The last coil set to “H” will remain
on “H” and the other coil will reduce to power level “71/2”. The induction
coils on the right side are likewise paired for power sharing. The last coil
set to “H” will remain on “H” and the other coil will reduce accordingly (RF
coil will reduce to “7” and the RR coil will shut off).
Power Sharing
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Slight sounds may be produced by different types of cookware. Heavier pans such as enameled cast iron produce less noise than a lighter weight multi-ply stainless steel pan. The size of the pan, & the amount of contents, can also contribute to the sound level.
When using adjacent elements that are set at certain power level settings, magnetic fields may interact & produce a low whistle or intermittent “hum”. These noises can be eliminated by raising or lowering the power level settings. Pans that completely cover the element will produce less noise. A low humming noise is normal particularly on high settings.
Cookware Noise
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Stand By – Line voltage is applied. No cooking zones are activated. No displays are illuminated with the exceptions of “hot zone” indicators, or timer count down in progress.
Ready - The cooktop main power is turned on & awaiting a function key press.
In Use – At least one of the cooking zones is in use.
Locked – All displays are off with the exception of the “Control Lockout” pad. No functions available until the unlocked sequence is done (press & hold the control lockout pad for 3 seconds to lock & unlock cooktop).
Basic Modes of Operation
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Left Induction Units
Right Induction Units
Warming Zone Controls
Oven Controls
“Backlit, intuitive, curved glass touch control”
Control Panel Assembly
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There are four induction cooktop coils.
The controls for the cooktop module
consist of two burner Touch Boards
connected to and working through the
main logic board. The main logic board is
connected via the Linbus serial wire to
the cooktop module, DRM board, bridge
board and the RPSM. (Relay Power
Supply Module) located on the back of
the range.
The bridge board contains the surface on/
hot cooktop indicator lights. The induction
module cooling fan connection is also
located on this board. The bridge board
bridges the Linbus connections from the
filter board, main logic board along with
the RPSM.
A Fifth cooktop element is a resistive
warmer controlled by the DRM relays.
See wiring diagrams. No relay boards or
line voltages are brought to the control
panel.
Induction Flow Chart
DRM Board
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If the zone ON/OFF key is pressed, but no UP (+) or Down (-) keys are pressed for a period of 5 seconds, then the control will revert back to “Ready” or “Active” mode with out activating the element. If the control was in the “In Use” mode, the control digit display will turn off. After the on/off key is pressed, one touch of the + or – will start the power level at 5 for all induction elements and will increase by ½ increments from L,1,2,3,4,5,6,7,8,9,H.
If the +/- buttons are pressed & held for a period of 2 seconds, the control will automatically increase or decrease the displayed power level at a rapid rate.
Increase Temp
Decrease Temp
Press here to turn on
5 ½
Controls – Basic Operation
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Press the on/off pad to ready the system, pressing the power boil pad will
automatically go to the highest power level H for 10 minutes. After 10
minutes the system will drop the power level to 9. Make note when using
power boil the right rear burner will not operate until the front element has
returned to a lower power level of 9 or less. See power sharing.
Controls – Basic Operation – Power Boil
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The melt option can be selected after turning on the right rear element.
This will automatically select the “L” or the lowest setting for melting
delicate items without scorching.
Controls – Basic Operation – Melt Option
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Left front and left rear elements are both 2500W induction elements. Same
heat controls as the right front and right rear for the exception we have a
simmer pad on both elements. The simmer control automatically sets a
power level of 3 when pressed after pressing the on/off pad.
3
3
Controls – Basic Operation – Simmer
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To Remove Capacitive Touch Glass:
• Remove two T15 Torx head screws from the front corners of frame.
• Lift control panel from range top & set on a protected surface.
Control Panel Removal
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Control Panel Removal
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Main Logic Board
Right Wing Board - Part of
Capacitive Touch Glass
Control Boards
Left Wing Board - Part of
Capacitive Touch Glass
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To Remove Main Logic Board:
• Disconnect the Lin bus and sensor harness connectors
• Disconnect three ribbon connectors.
• Remove two 1/4” hex head screws.
• Lift board from metal frame.
Main Logic Board
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• Ribbon connectors #1 & #3 are replaceable components.
• Ribbon #2 is part of the capacitive touch glass.
1 2 3
Main Logic Board
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Oven Sensor
Meat Probe
Cooktop & Oven
Logic Control
Board
(Lin Serial)
Model Plug
2.3kΩ
Make sure to transfer model select plug to new board before applying power.
Main Logic Board
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• Remove 2 ¼” hex head screws securing glass to frame.
• Lift glass from metal frame.
• Transfer surface burner ribbon connectors to new touch glass.
Capacitive Touch Glass
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• A capacitive touch switch consists of two conductive layers on opposite
sides of an insulating material such as glass.
• The touch switch has conductive layers, which create a capacitance that
decreases when a layer is touched by a human finger, for example.
• Interface circuitry is used on a touch switch to convert the capacitance
change into a usable switching action to drive logic systems or to switch
analog signals.
polyethylene terephtalate (polyester) film
Indium Tin Oxide coated film, ITO glass
Capacitive Touch Glass - Operation
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Control Panel - Components
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• Disconnect control wiring and remove the control panel.
• Disconnect the 2 control panel frame screws and remove the frame.
• Remove the 8 ¼” Hex head screws from the inside front of the cooktop.
• Lift the cooktop at the front and pull slightly forward.
• Raise the cooktop to access the wiring connectors underneath at the front and rear.
Cooktop Removal
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•Disconnect cooktop wiring and remove ground wire from cooktop.
•Carefully place the cooktop on a protected surface.
Cooktop Removal
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To remove the induction module from the glass cooktop:
Lay cooktop on protective surface and remove the 7 3/8” carriage bolts
Induction Module Removal
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L2 L1
Ground
Module Wiring Connections
Wiring connections to filter board
Note: Jumper blades will fall free when screws are removed.
Make note of location for proper reassembly.
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Induction Module
After removing the 3/8 nut from the carriage bolt you will need to remove the spacer to
release the carriage bolt. Note the shoulder on the spacer mount into the opening on
the cooktop. This allows proper alignment upon reassembly.
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The carriage bolt must then removed by sliding from the square opening to
the rounded opening. Repeat this procedure for all 7 bolts. The induction
module can now be gently removed from the cooktop.
Carriage Bolt
Induction Module
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To gain access inside of the induction module:
•Remove all elements
•Disconnect bridge board wiring
•Remove the 12 Phillips screws securing the aluminum plate to the induction module
Induction Module Plate
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Lift up the aluminum plate and disconnect the ground wire from
the filter board to the aluminum plate
Induction Module Plate
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240VAC 110W Warming Element Approx 550Ω
3700W
<1Ω
1800W
<1Ω
2500W
<1Ω
2500W
<1Ω
Bridge Board
Sensor
11”
6” 7”
7”
Induction Module
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Right generator board controls right 2 elements.
Left generator board controls left 2 elements.
Element Operation
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Filter board controls both left and right generator boards.
Element Operation
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Top Insulation Induction coil
Induction Element
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Coil should read less than 1W at room temperature.
Sensor should read 1KW at room temp (+or-10%).
Sensor & coil replaced as a complete assembly.
Alignment Pins
Sensor
Induction Element
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After marking the alignment pin locations on the element you will need to use a large
flat blade screwdriver to remove the induction element from the aluminum plate
alignment pins. The alignment pins are fluted to hold the element onto the aluminum
plate upon reassembly. Take care not to damage the element.
Sensor
Alignment
Pin
Induction Element - Removal
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Insulation folded
back
Element connections
(Yellow)
Sensor
Connections
1kW at room
temperature
Test element by removing
one lead and using ohm
meter check resistance
value of less than 1 ohm
Element & Sensor Testing
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The right front element 11”(3700W) is equipped with a choke at the generator
board connections. When replacing this element the choke will need to be
transferred to the same location on the new element wiring. Use wire tie to hold in place.
Induction Element - RF
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Ferrous spacers
Non-magnetic
Induction Element - Bottom
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Left Generator
Board Right Generator
Board
Filter Board
Variable Speed
Cooling Fan 12VDC
Induction module with aluminum plate removed
Induction Module
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Element Connections
Sensor Connections
L1 & L2 from filter
board
LIN Bus from filter
board (need tool to
remove).
Generator Board
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9/29/2011
Remove clips from heat sink
Heat Sink Thermal Cut-Out
Remove screws & lift from locking tabs
Generator Board - Removal
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Heat Sink
High Limit
Connection
Serial Linbus
Connection
Locking Tabs
L1 & L2 connections
LIN Bus
Ground Wire
Filter Board Removal
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Tool supplied with any part that requires LIN bus removal.
Keep for future use.
* Local Interconnect Network
LIN* Bus Tool
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Generator Board
Relays
• As viewed from this angle, grab the connector in this manner to avoid potential damage.
LIN* Bus Tool
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If an open heat sink is detected check cooling fan for proper operation.
Thermal cut out will open at 250˚F.
Heat Sink Thermal Cut-Out
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Unplug connector from bridge board & release locking tabs as outlined. Install new fan making sure all tabs are locked in place & reconnect plug. Fan can be tested by turning on 2 or more induction elements prior to disassembly or by connecting to a 9 volt battery.
12vdc Cooling Fan
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Lin Bus From Filter Board To Cooling Fan
Bridge Board
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Bridge Board Cooling Fan Lin Serial from Filter Board
Lin Serial to
Main logic
board and
RPSM
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Basic Operation Cooktop Controls – Warming Zone
The warming zone utilizes a 240VAC, 110W, @550Ω heating element.
To operate:
Press the on/off pad
Press select for L low, M Medium or H high
Press on/off pad to turn off after use
H
Warming Zone – Basic Operation
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Correct alignment
before securing in
narrow slot
Aluminum plate notches Bottom view of spring bracket
Cooktop Warming Element
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Power is supplied to the warming element by the DRM.
Temperature is controlled by a programmed duty cycle in the
main logic board specific for each level selected.
Touch Control
Main Logic
Board
DRM
Element
Warming Element
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The controls for the oven system consist of
a touch film on glass assembly (key panel)
main logic board with a model select
resistor plug located in the control panel.
There is also an RTD oven sensor, meat
probe and a motor driven door lock
assembly with position switches. The oven,
warming drawer and cooktop warming
element are controlled by relays found on
the RPSM (Relay Power Supply Module)
located on the back of the range.
Oven Flow Chart
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Component Layout – Rear - Induction
RPSM
Board DRM
Board
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RPSM – Relay Power Supply Module
K1 – Convection Fan Motor (Reversing)
K3 – All Elements L1
K4 – Oven Light
K5 – Cooling Fan
K7 – Bake & Convection Elements L1
K8 – Convection Fan Motor
K10 – Convection Element L1
K11 – Warming Drawer Element
K13 – Door Locking Motor
K14 – Bake & Broil Double Line Break
J15 – Lin Bus (DRM Board)
J16 – Door Lock Switches
J17 – Lin Bus (Master)
J20 – L1 & L2 Input
J21 – Neutral
J15
J16
J17
K14
K3
K7
K10
K1
K13
K11
K8
K5
K4
J7
J21
J20
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DRM – Daughter Relay Module
J23
J24
J15 J15 – Lin Bus (Main DPSM Board)
J23 – Line for Warming Zone Element
J24 – Warming Zone Element
K17 – Warming Zone Relay
K17
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Oven Sensor
•The oven temperature sensor is connected to the main Logic Board at J501
•Make resistance measurements of the sensor at the exposed terminals unplugged
from the logic board.
•The sensor can also be checked from the disconnect at the rear of the range
Main Logic Board Disconnect at Sensor
Oven Sensor
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Sensor Resistance Chart
Special Note: The current software version of the main logic board will
cause the cooktop to become inoperative if the oven sensor opens.
If the sensor opens and the fault code sets to eeprom memory, (takes
about three minutes) the cooktop at that time will become inoperative
until the sensor is replaced.
NOTE: If cooktop and oven are inoperable, disconnect power, reconnect
and check display for 331 error code (Open sensor).
Oven Sensor
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To remove the oven sensor. Remove the ¼” hex head screw and
carefully slide the sensor and harness 2 pin disconnect plug through
the oven liner.
Oven Sensor
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Use a small flat blade screwdriver to push and guide the
sensor wire harness into the oven liner when re-installing.
Oven Sensor
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Note: The Induction range convection oven door gasket does not cross over.
Door Gaskets
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Door gasket attached with spring clips around perimeter of door.
Door Gaskets
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Open door and raise hinge locks Raise door towards closed position
Lift and remove door
Door Removal
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Component View - Oven
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• When self Clean is selected the control will automatically set for 5 hours
with a minimum time of 3 hours.
• When in the clean mode, the cooktop is electronically locked out by the
main logic board.
Self Clean
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To access lock motor:
•Raise or remove cooktop
•Remove the two ¼-inch hex-head screws
•Slide the motor lock assembly back away from front of range
Motorized Door Lock
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The door lock motor is energized when ever a self clean cycle is selected. Use
caution when servicing or replacing the lock motor assembly. Make sure wiring is
correct prior to powering up the range.
Motorized Door Lock
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Motorized Door Lock
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The thermal limit opens at 350˚F. This is a non-resettable
thermostat. When the thermostat open it breaks L2 from the bake
and broil heating elements.
Thermal Limit Switch
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To remove convection fan: Begin by removing (4) ¼” hex head screws securing convection fan blade cover to rear of oven.
Convection Fan Removal
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• Release convection fan blade by removing ½”, reverse threaded
nut by holding blade and turning nut clockwise.
• Slide blade from motor shaft.
Convection Fan Removal
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• On the back of the range, remove three ¼” hex head screws holding
motor to the rear of the oven.
• Slide motor from opening in frame.
Convection Fan Removal
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• Unplug electrical connector plug.
• Remove motor from range.
Convection Fan Removal
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Convection Fan – Symptom Chart
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Cooling Fan The cooling fan can be accessed after removing the cooktop. The cooling fan is located on the
right hand side front corner and is held by 5 ¼” hex screws.
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The warming drawer element is rated 400 watts, and has an
approximate resistance value of 36Ω.
Warming drawer temperatures are controlled by duty cycling algorithms.
Low Temperature = 165° +/- 25°F
Standard Temperature = 175° +/- 25°F
High Temperature = 180° +/- 25°F
Warming Drawer
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Warming Drawer update time/temp
Duty cycle for warming drawer
100 Seconds
35
Seconds
900
Seconds
80 Seconds
50
Seconds
850
Seconds
100 Seconds
142
Seconds
800
Seconds
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Hot Surface light (Bridge Board)
Module Inlet Vent
Raise or Remove cooktop
Hidden Bake Element
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Remove the ¼-in hex-head hidden screw located in the recess near the front
left leveling leg
Recess
Hidden Bake Element
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Remove screws along top
edge of side panel.
Hidden Bake Element
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Remove the three 1/4–in hex head
Screws from the rear of the side panel.
Hidden Bake Element
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Grasp the front and rear portion
of the side panel. Lift the side panel
up and pull towards you then disengage
the two plastic grommets as shown.
Hidden Bake Element
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Carefully peel the reflective tape from the
induction module air vent. Remove the ¼”
hex screws from the locking brackets at the
bottom of the vent. Push it up approximately
¾ inch. Swing out the bottom of the air
tunnel, then pull it down from the induction
module air inlet vent.
Remove the ¼ - inch hex-head screw and
the upper heat shield.
Remove the ¼ inch hex head screw that
attaches the lower heat shield to the range
frame.
Module Inlet Vent
Reflective Tape
Air Duct
Upper
Heat
Shield
Lower
Heat
Shield
Hidden Bake Element
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Push up and disengage the lower heat shield from the hooked end
Of the right side wire insulation retainer.
Right Side Retainer Lower
Heat
Shield
Hidden Bake Element
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Left Side Retainer
Disengage the hook of the left side wire insulation retainer from the
frame of the range. Disconnect the 2 wires from the bake element.
Disconnect
Disconnect
Hidden Bake Element
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Carefully lift and tuck the side insulation up
under the induction module air vent.
Remove the ¼ inch screw and the ground wire
from the bake element.
Remove the ¼ inch screw from the left side of
The element retainer.
Module Inlet Vent
Hidden Bake Element
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Using a small screwdriver pry out the element retainer and remove.
Hidden Bake Element
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Using both hands gently slide out element.
Hidden Bake Element
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For the first three minutes after power up, the F-codes will show on the
display.
Main Logic Failure Codes:
The main logic board has error (F) codes that can be utilized by the service
technician. The error codes are not shown on the display when they occur.
They are stored in EEprom and can be retrieved.
Error Codes
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• F-Codes are not shown on the display when they occur.
• They are stored in eeprom and can be retrieved by pressing:
TIMER ON + CLOCK + START
Error Codes
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The display then shows F-cd and prompts for an upper or
lower selection. Press 1 for the oven.
Error Codes
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After selecting 1 for the oven, the log is shown.
Error Codes
107 / Copyright General Electric 2011
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Details of any one of up to 7 stored codes can be recalled
by pressing a numbered key.
Error Codes
108 / Copyright General Electric 2011
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The F-Code log can be erased by pressing 9 and 0 together
while the log is being displayed.
NOTE: Only the log displayed is erased / cleared.
Error Codes
109 / Copyright General Electric 2011
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Press CLEAR/OFF to exit the F-Code mode and return to the
time of day display.
Error Codes
110 / Copyright General Electric 2011
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Oven - Error Codes
111 / Copyright General Electric 2011
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Oven - Error Codes
112 / Copyright General Electric 2011
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Oven - Error Codes
113 / Copyright General Electric 2011
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0
1
2
3
X=
Induction - Error Codes
114 / Copyright General Electric 2011
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•The entry to Test Mode is available for 3 minutes after power up by pressing together
the 1 & 5 keys.
•The display will switch to tEST.
•Clear/off exits the Test Mode.
•When a test feature is selected, it remains for 10 seconds then returns to tESTStandby.
Test Mode
115 / Copyright General Electric 2011
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Pressing element control functions while in test mode will allow you to check
LED components.
Test Mode
116 / Copyright General Electric 2011
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Note: All relays
designated MK and K
are located on the
RPSM. DK and DJ are
located on the
Daughter board.
*R115 is used only in
factory test
Schematic
117 / Copyright General Electric 2011
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Wiring Diagram