GE Profile PHP900, Monogram ZHU36, Profile PHP960, Monogram ZHU30 Technical Service Manual

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GE Consumer & Industrial

XXR

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REALL

Technical Service Guide

April 2008

Proﬁ le and Monogram

30- and 36-in.

Induction Cooktop

31-9164

PHP900 PHP960

ZHU30 ZHU36

GE Appliances General Electric Company Louisville, Kentucky 40225

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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 ap pli ance may result in personal injury and property damage. The man u fac tur er or seller cannot be responsible for the in ter pre ta tion of this in for ma tion, nor can it assume any liability in connection with its use.

WARNING

To avoid personal injury, disconnect power before servicing this prod uct. 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 Consumer & Industrial

Technical Service Guide

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Table of Contents

Appearance Defects ........................................................................................................................................................21

Component Locator Views ...........................................................................................................................................17

Control Features ................................................................................................................................................................ 8

Cooktop Components ..................................................................................................................................................... 21

Cooktop Removal From Countertop ........................................................................................................................21

Diagnostics and Service Information ......................................................................................................................31

Elements ...............................................................................................................................................................................22

Fans .........................................................................................................................................................................................30

Filter Board ..........................................................................................................................................................................29

Generator Boards .............................................................................................................................................................28

Glass Maintop ..................................................................................................................................................................... 22

Heat Shield ........................................................................................................................................................................... 26

Installation ........................................................................................................................................................................... 7

Introduction ......................................................................................................................................................................... 4

Introduction to Induction Cooking ............................................................................................................................ 6

LINbus Connectors ........................................................................................................................................................... 27

Nomenclature .................................................................................................................................................................... 5

Operation Overview .........................................................................................................................................................16

Schematics and Wiring Diagrams ............................................................................................................................33

Thermal Cut-out ................................................................................................................................................................28

Touch Board ........................................................................................................................................................................23

Warranty .............................................................................................................................................................................. 35

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Introduction

Introducing GE Proﬁ le and GE induction cooktops― offering fast, efﬁ cient cooking.

Induction cooktops provide unmatched cooking performance and ﬂ exibility. Induction technology heats only the pan and its contents and offers energy efﬁ ciency by reducing wasted heat when compared to radiant and gas cooktops.

The new Monogram and Proﬁ le, 30- and 36-in. Induction Cooktops have the following new features:

Innovative technology• ―delivers the responsiveness of a gas cooktop.

Superior performance• ―Induction technology heats only the pan and

its contents, providing an incredibly fast boil time.

Remarkable versatility• ―This induction cooktop offers the choice of 19 different power levels, including a 3700-watt, 11" element for large cookware ( the highest wattage induction element in the industry*), warming capability, and a low-heat simmer setting for delicate sauces.

Cooler cooktop surface• ―Since there is not a traditional thermal heating element, the induction cooktop stays cooler than conventional radiant cooktops.

Below cooktop venting• ―that dissipates heat, permitting less depth to the burner box.

Easy cleanability• ―Cooktop cleaning is easier since spills and splatters do not burn on the cooktop.

Distinguished appearance• ―Sleek cooktop ﬁ ts ﬂ ush with the countertop, and is surrounded completely

in full-frame stainless steel trim. This cooktop can be installed above a GE® or GE Proﬁ le™ wall oven.**

The four-burner models feature 1 ten-inch, 3700 W element, 2 seven-inch, 2500 W elements, and 1 six-inch 1800 W element. And with the 36-in. models, you get the addition of 1 eight-inch, 3200 W element.

*Among leading manufacturer brands **Not to be installed over wall ovens with Trivection® technology

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Proﬁ le Model Number

Nomenclature

P H P 9 0 0 D 1 M B B

Brand

P = Proﬁ le

H = Induction

P = Cooktop

Feature Pack

900 = 30-in. Width 960 = 36-in. Width

Monogram Model Number

Brand

Z = Monogram

H = Induction

U = Cooktop

Feature Pack

30 = 30-in. Width 36 = 36-in. Width

D = Color S = Stainless

Z H U 30 R B M 1 B B

Control Type

R = Digital

Color Code

BB = Black on Black SS = Stainless Steel

Model Year

M = 2007

Engineering Digit

1 = 1st Version

Color Code

BB = Black on Black SS = Stainless Steel

Engineering Digit

1 = 1st Version

Model Year

M = 2007

B = Black S = Stainless

PHP960 Model shown

Mini-Manual

Nomenclature

The nomenclature plate is located under the cooktop.

The mini-manual is located inside the burner box and is accessed by removing the electrical cover on the bottom of the cooktop.

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Serial Number

The ﬁ rst two numbers of the serial number identify the month and year of manufacture.

Example: AR123456S = January, 2008

A - JAN 2008 - R

D - FEB 2007 - M F - MAR 2006 - L G - APR 2005 - H H - MAY 2004 - G L - JUN 2003 - F M - JUL 2002 - D R - AUG 2001 - A S - SEP 2000 - Z T - OCT 1999 - V V - NOV 1998 - T

Z - DEC 1997 - S

The letter des ig nat ing the year re peats every 12 years.

Example: T - 1974 T - 1986 T - 1998

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Introduction to Induction Cooking

How Induction Cooking Works

Induction cooking uses high frequency (20-50 K hz) magnetic energy to heat a ferrous metal pan when it is placed over the induction coil. The induction ﬁ elds have no affect on non magnetic surfaces such as paper, plastic, or non ferrous metals like aluminum, or copper. Thermal sensors under the glass surface communicate with microprocessor controls for pan sensing and turn-down.

Part one: Coil produces electromagnetic energy

The ﬁ rst component needed is an induction coil or element. The induction coil generates the magnetic ﬁ eld needed for induction cooking.

Glass Cooktop Surface

Induction Coil

Part two: Pan uses the energy to produce heat

The second component is the ferromagnetic cooking pan with a bottom constructed of material that will attract a magnet. If a magnet will not stick to the bottom of the pan, it can not be used for induction cooking.

created by the induction coil is applied to only the bottom of the pan.

Induction Fields

The contents of the pan are therefore heated more quickly than they would be if heated by a gas ﬂ ame or a traditional radient heating element.

By heating only the bottom of the pan, the surrounding surface remains cooler than with traditional cooktops.

Features:

Testing Bottom of Pan with Magnet

Easy cleanability• ―Cooktop cleaning is easier

since spills and splatters do not burn on the cooktop, which is about 500°F vs 1200°F for radiant.

Control and responsiveness equal to gas• ―

This induction cooktop give you instant control

When the proper type of pan is placed over an

of the amount of heat added to the cookware.

energized induction coil, a ﬁ eld of magnetic waves will cause the bottom of the pan to heat.

Fast and Powerful• ―providing an incredibly

fast boil time. 3700 w, 8.5 min. to boil vs 12 to 14 min. for radiant and 14 to 16 min. for gas

Water

Glass Cooktop Surface

Pan with Bottom of Magnetic Material

Induction Coil

(18k BTU).

Efﬁ cient performance• ―Induction technology

heats only the pan and its contents, not the kitchen. Efﬁ ciency ratings are: Induction 83%, Radiant 72%, and gas 38%.

Induction cooking is very efﬁ cient. The energy

Note: There are no health risks associated with the use of this cooktop. The RF ﬁ eld from an induction element dies away to almost nothing at a distance of about one foot (30 centimeters). You will not receive even trivial radiation from an induction cooktop unless you spend a long time well within one foot of an operating element.

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Installation

WARNING: Before beginning the installation, switch power off at the service panel and lock the service disconnecting means. When the service disconnecting means cannot be locked, securely fasten a warning tag to the service panel.

Note: The complete installation instructions are inclosed with the Use and Care Manual. Carefully read and follow these instructions.

The following minimum clearance dimensions must be maintained.

13″ MAX. Depth of uprotected overhead cabinets

30″ MIN. Clearance from countertop to unprotected overhead surface

2″ MIN. Clearance from cutout to side wall on the left of the unit

2″ MIN. Clearance from cutout to side wall on the right of the unit

15″ MIN. Height from countertop to nearest cabinet on either side of unit

If a 30-in. clearance between the cooking surface and overhead combustible materials or metal cabinets cannot be maintained, a minimum clearance of 24-in. is required and the underside of the cabinets above the cooktop must be protected with not less than 1/4-in. insulating millboard covered with sheet metal not less than 0.0122-in. thick.

Grounding Speciﬁ cations

Models PHP900 and ZHU30

29-3/4″

(29-7/8″ SS)

Cooktop

19-3/8″

21-3/8″ (21-1/2″ SS) at center

28-1/4″

4-5/8“ at front baffle

3-1/4” at rear ai intake

Models PHP960 and ZHU36

(36-1/8″ SS) at center

36″

Cooktop

18-7/8″

20-7/8″ (21″ SS) at center

33-5/8″

4-5/8“ at front baffle

3-1/4” at rear air intake

Power Supply

The cooktop must be connected to a supply circuit of the proper voltage and frequency as speciﬁ ed on the rating plate. Wire size must conform to the National Electrical Code or the prevailing local code. The rating plate is located on the bottom of the burner box.

Wiring

Built-in power leads are UL-approved for connection to larger gauge household wiring. The insulation of these leads is rated at temperatures much higher than the temperature rating of household wiring. The current-carrying capacity of a conductor is governed by the temperature rating of the insulation around the wire rather than the wire gauge alone.

Ground Path Resistance

Insulation Resistance

Overcurrent Protection

Maximum Kilowatt Rating

Size NEC Rating

30-in. 40 Amp 8.3 9.4 9.6 36-in. 50 Amp 10.4 11.8 12.0

The branch circuit load for one counter-mounted cooktop is the rating on the nomenclature plate.

208V 236V 240V

0.10Ω Max. 205KΩ Min.

WARNING: Improper connection of aluminum house wiring to these copper leads can result in a serious problem. Use only connectors designed for joining copper to aluminum and follow the manufacturer's recommended procedure closely.

Ceramic Glass Cooktop

If the glass is damaged, it may be replaced as a separate part. The touch board and electronics are separate parts.

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Control Features

Features of your cooktop.

Throughout this manual, features and appearance may vary from your model.

PHP900 30″ Cooktops

PHP960 36″ Cooktops

NOTE: 30” models have cooking element location indicators next to each control.

Feature Index (Features and appearances may vary.) Explained on page

Cooking Elements 10

Control Lock 13

Kitchen Timer 12

ON Indicator Light (one for each element) 10

Hot Surface Indicator Light Area 12

Cooking Element ON/OFF Control 10

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How induction cooking works. ge.com

Min. Size

Use the minimum size pan for the element. The pan material is correct if a magnet sticks to the bottom.

5-3/4” Min. Dia.

Pan Size

5-3/4” Min. Dia.

Pan Size

The elements beneath the cooking surface produce a magnetic field that causes the electrons in the ferrous metal pan to vibrate and produce heat.

The cooking surface itself does not heat. Heat is produced in the cooking pan, and cannot be generated until a pan is placed on the cooking surface.

When the element is activated, the pan begins to heat immediately and in turn heats the contents of the pan.

4-3/4” Min. Dia.

Pan Size

7” Min. Dia.

Pan Size

Magnetic induction cooking requires the use of cookware made of ferrous metals—metals to which magnets will stick, such as iron or steel.

Use pans that fit the element size. The pan must be large enough for the safety sensor to activate an element.

The cooktop will not start if a very small steel or iron utensil (less than the minimum size across the bottom) is placed on the cooking surface when the unit is turned on—items such as steel spatulas, cooking spoons, knives and other small utensils.

Using the correct size cookware

Each cooking element requires a MINIMUM pan size. If the pan is properly centered, and of the correct material, but is too small for the cooking element, the element cannot be activated. The display will flash “F” along with the power level selected.

Cookware larger than the element ring may be used; however, heat will only occur above the element.

30” Wide Cooktop. Use the minimum size pan shown for each cooking element.

5-3/4” Min. Dia.

Pan Size

5-3/4” Min. Dia.

Pan Size

36” Wide Cooktop. Use the minimum size pan shown for each cooking element.

7” Min. Dia.

Pan Size

4-3/4” Min.

Dia. Pan Size

7” Min. Dia.

Pan Size

For best results, the cookware must make FULL contact with the glass surface.

Do not allow the bottom of the pan or cookware to touch the surrounding metal cooktop trim or to overlap the cooktop controls.

For best performance, match the pan size to the element size. Using a smaller pot on a larger burner will generate less power at any given setting.

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Choosing the correct cookware to use.

INCORRECT

Cookware not centered on cooking element surface.

Curved or warped pan bottoms or sides.

CORRECT

Cookware centered correctly on cooking element surface.

Flat pan bottom.

Cookware recommendations

Cookware must fully contact the surface of the cooking element.

Use flat-bottomed pans sized to fit the cooking element and also to the amount of food being prepared.

CAUTION:

■ The cooking elements may appear to be cool while

turned ON and after they have been turned OFF. The glass surface may be HOT from residual heat transferred from the cookware and burns may occur.

■ DO NOT TOUCH HOT COOKWARE or PANS directly

with hands. Always use mitts or pot holders to protect hands from burns.

■ DO NOT SLIDE cookware across the cooktop

surface. Doing so may permanently damage the appearance of the ceramic cooktop.

Pan does not meet the minimum size required for the cooking element used.

Pan bottom rests on cooktop trim or does not rest completely on the cooktop surface.

Heavy handle tilts pan.

Pan size meets or exceeds the recommended minimum size for the cooking element used.

Pan bottom rests completely on the cooktop surface.

Pan is properly balanced.

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Use flat-bottomed pans.

Use a griddle.

Use a flat-bottomed wok.

Suitable Cookware

Use quality cookware with heavier bottoms for better heat distribution and even cooking results. Choose cookware made of magnetic stainless steel, enamel coated cast iron, enameled steel and combinations of these materials.

Some cookware is specifically identified by the manufacturer for use with induction cooktops. Use a magnet to test if the cookware will work.

Flat-bottomed pans give best results. Pans with rims or slight ridges can be used.

Round pans give best results. Pans with warped or curved bottoms will not heat evenly.

For wok cooking, use a flat-bottomed wok. Do not use a wok with a support ring.

Cookware “noise”

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, and 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 and produce a low whistle or intermitted "hum". These noises can be reduced or eliminated by lowering or raising the power level settings of one or both of the elements. Pans that completely cover the element ring will produce less noise.

A low “humming” noise is normal particularly on high settings.

Do not place wet pans

on the glass cooktop.

Do not use woks with support

rings on the glass cooktop.

Use flat-bottomed woks

on the glass cooktop.

For Best Results

■ Do not place wet pans or lids on the

cooking surface or induction rings.

■ Do not place wet fingers on the glass

cooktop. Wipe up spills on the controls with dry hands.

■ Do not use woks with support rings. This

type of wok will not heat on an induction element.

■ Use only a flat-bottomed wok, available

from many cookware manufacturers. The bottom of the wok should match the diameter of the induction ring to insure proper contact.

■ Some special cooking procedures

require specific cookware such as pressure cookers, deep-fat fryers, etc. Cookware with flat bottoms that match the size of the surface element being used will produce the best results.

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Setting the controls.

Using the Touch Control.

Touch the pad lightly with the flat part of your fingertip. Touch the center of the pad to ensure the cooktop response.

Operating the Cooking Elements

A "beep" sound can be heard with each touch to any pad.

1/2

The power level with a fraction indicates the additional half-step setting.

Each of the cooking elements have separate ON/OFF pads and LED display.

Be sure to use cookware that meets the minimum pan size requirements.

To turn on a cooking element:

Place a pan with food onto the induction element. The pan size should match the indicator ring.

Touch the ON/OFF pad. “5” will flash in the display.

Touch the (+) or (-) pad to select power level and to activate the induction element. A sound will beep. The (+) or (-) pad must be pressed within 10 seconds to activate the element.

NOTE: You can also touch and hold the pad to scroll quickly to the desired setting.

Power Level Settings

The cooktop offers 19 power levels, including a Boost setting. Power levels range from “L” to 9 in precise half-step increments. For example: 1, 1-1/2, 2, 2-1/2 and up to power level 9.

Power Level “L”, the lowest setting, is recommended for “Keep Warm.”

The induction circuit detects the pan and allows the element to be activated. Both the element ON indicator light and the cooktop HOT SURFACE light will illuminate. If no power level is selected within 10 seconds, the zone will be deactivated.

To turn the control to OFF, touch the ON/OFF pad. The induction element will be turned off and the display will be blank.

With an element control ON:

If a pan is removed or moved to off-center from the cooking ring, the control will flash “F” along with the power setting. After 30 seconds, the element will be deactivated and displays will turn off.

If the pan is placed back on the zone within 30 seconds, the flashing will stop and cooking will resume.

The power level increases one-half level with each touch.

Power level 9 is the highest normal power setting.

Flashing “F” in the Display

If a pan is removed or moved off-center from the cooking ring during the cooking process, the control will flash “F” along with the power setting. The flashing "F" indicates that the pan is no longer detected. After 30 seconds, the element will be deactivated and the display will turn off.

If the pan is returned to the surface element within 30 seconds, the flashing “F” will disappear and cooking will resume.

(Continued next page)

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“H” indicates that the Boost power level has been selected for rapid cooking and boiling.

Boost Setting

Boost is the highest power level, designed for large quantity rapid cooking and boiling. Boost will operate for a maximum of 10 minutes. After 10 minutes, it will automatically revert to power level 9.

Boost may be repeated after the initial 10 minute cycle.

CAUTION: Do not leave a pot unattended while in the Boost Mode.

To start the Boost power setting:

Place a pan matching the size of the induction element over the selected indicator ring.

Touch the ON/OFF pad. “5” will flash in the display.

Touch and hold the (+) pad until the display reads “H.”

Power Sharing

Four burner cooktops are divided into two separate heating zones. The right and left side cooking zones are powered by separate and independent induction generators. One generator controls 2 elements, or two cooking zones within a heating section share the power of one generator.

NOTE: If the pan is removed, the display will flash “F” alternating to “H”. After 30 seconds, the elements will turn off automatically.

Sounds you may hear:

You may hear a slight “buzz” sound when cooking with the Boost or high mode. This is normal. The sound depends on the type of pot being used. Some pots will “buzz” louder depending on the material. A “buzz” sound may be heard if the pan contents are cold. As the pan heats, the sound will decrease. If the power level is reduced, the sound level will go down.

4 burner cooktops with right and left side (2) induction generators.

5 burner cooktops with right, left and center (3) induction generators.

Five burner cooktops are divided into 3 zones. The right and left side have separate cooking zones and the large center element is another separate cooking zone.

Power Sharing is activated when both elements in the same cooking zone are activated and one element is set for Boost (H). The element that is not set for Boost will change to a lower power level. This is called Power Sharing. When Boost operation is complete (10 minutes), the other element may be reset to any power level. Both elements can operate simultaneously at normal power level settings of “L” to 9.

IMPORTANT NOTE FOR FOUR BURNER MODELS:

The elements on the right side share one generator. Both elements can operate at any non-Boost (level L to 9) power level at the same time. If the large front element is set for "H" or Boost, the smaller element at the right rear will be deactivated or turned off automatically. The smaller right rear element can be activated and set for any power level after the Boost operation of the larger element is completed (10 minutes).

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Using the "L" Low Setting

Place a pan with food onto the induction element. The pan size should match the indicator ring.

The Low setting will keep hot, cooked food at serving temperature. Always start with hot food. Do not use to heat cold food.

CAUTION: Do not warm food on the “L” power level for more than two hours.

Touch the ON/OFF pad. “5” will flash in the display.

Touch the (-) pad until the display reads “L.” A sound will beep.

Do not use plastic wrap to cover food. Plastic may melt onto the surface and be very difficult to remove.

Use only cookware recommended for this cooktop.

Using the Kitchen Timer

NOTE: Use the kitchen timer to measure

cooking time or as a reminder. The kitchen timer does not control the cooking elements.

Touch the Timer ON/OFF pad.

Touch the (+) or (-) pad to choose the desired number of minutes. When the (+) or (-) pad is held for several seconds, the timer will increase or decrease at a faster rate. The timer will automatically start to count down the minutes you have selected within 5 seconds of the last entry. The display will show the minutes and a “ will flash.

.“

Placing uncooked or cold food on surface element set for Low could result in foodborne illness.

For best results, all food set for Low should be covered with a lid or aluminum foil. Pastries or breads should be vented to allow moisture to escape.

Always use pot holders or oven mitts when removing food from the element set for Low as cookware and plates will be hot.

The timer displays minutes remaining until it reaches one minute. At one minute, the timer will beep and start counting down seconds.

With one minute remaining, the timer will beep every 10 seconds. When all time has counted down, the timer will signal a long beep and the display will become blank.

Touch the ON/OFF pad to turn the timer off at any time. Touch (+) or (-) to add or subtract to the set time.

Hot Surface Indicator Light

A HOT SURFACE indicator light (one for each cooking element) will glow immediately when any element is activated. The indicator light(s) glow when the glass surface is hot, and will remain on until the surface has cooled to a temperature that is safe to touch.

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Page 15

Using the surface elements. ge.com

Error Alerts (Flashing “E”/”c” and “E” “o”)

Error alerts indicate a temporary problem that may be corrected by the user.

Clear Keypad—If the display flashes “E” alternating to “c”, the keypad is sensing continuous activation of one or more keypads. Clean or clear any obstructions on the keypad area. Obstructions may be water, food spills, a utensil or other objects.

To resume cooking, touch the ON/OFF pad, then select the power level.

Over Temperature—If the display flashes “E” alternating to “o”, the cooktop sensor indicates that the induction element or electronics have overheated.

Overheating of the element is caused by placing an empty pan on the element and selecting a high power level. The element sensor detects very high temperatures (above normal cooking temperatures), turns off the power and displays the error. A second potential cause of this error is a lack of cooling air to the bottom of the cooktop, which can cause overheating of the electronics. If this situation occurs, make sure the air inlet below the cooktop is unobstructed.

Touch the ON/OFF pad and allow the cooktop to cool for 30 to 45 minutes before operation can begin again.

If either of these conditions persist, call for service.

IMPORTANT: If the “E” flashes alone, without alternating to a “c” or “o”, a hardware error has occurred. Call for service.

Control Lock

IMPORTANT: As a convenience, you can

lock the entire cooktop at any time when it is not in use or before cleaning. Locking the cooktop will prevent surface elements from being turned on accidentally.

To lock the cooktop: Touch and hold the CONTROL LOCK pad

for 5 seconds.

A two-beep signal will sound, and the CONTROL LOCK light will glow, indicating that the cooktop is locked.

If the cooktop is locked while a surface element is in use, it will automatically turn off.

The CONTROL LOCK does not affect the timer. If Control Lock is set while the timer is counting down, it will continue to operate.

To unlock the cooktop:

Touch and hold the CONTROL LOCK pad again for 5 seconds. A two-beep signal will sound, and the CONTROL LOCK light will go out, indicating that the cooktop is unlocked.

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Operation Overview

Normal Operation:

When activated by the touch board, a ﬁ lter board supplies 240 VAC to 1 or 2 generator boards along with the LINbus (Logic) connections. Each generator

board operates 1 or 2 elements.

The 30-in cooktops have 1 ﬁ lter board that supplies voltage to 2 generator boards. The left generator board operates the 2 left-side elements. The right generator board operates the 2 right-side elements.

Filter Board

The 36-in. cooktops have 2 ﬁ lter boards that supply voltage to 3 generator boards. The left ﬁ lter board supplies voltage to the left generator board. The left generator board operates the 2 left-side elements. The right ﬁ lter board supplies voltage to the center and right generator boards. The center generator board operates the center element and the right generator board operates the 2 right-side elements.

Right Filter Board

Left Filter Board

Left

Generator

Board

Center

Generator

Board

Right

Generator

Board

Left

Generator

Board

Right

Generator

Board

Generator board maximum output is 3700W. When using an element on high and a second element sharing the same generator board is then operated, the second element will receive priority. For example, if the ﬁ rst element was using 3700W when the second element was turned on, power on the ﬁ rst element will be reduced to a lower setting.

7 "- 2500 W

Element Size and Wattage

30-in. Cooktop

6 "- 1800 W

11 "- 3700 W

36-in. Cooktop

6 "- 1800 W

11 "- 3700 W

8 "- 3200 W

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Component Locator Views

36-in. Models ZHU36 and PHP960

Glass

Elements

Insulation Left

Left Generator Module

Filter Board

Left Side Generator Board

Left Generator Module Box

Fan Covers

Fan

Center Generator Board

Foam Seals

Wire Harness

Wiring

Cable

Harness

Kit

Electrical Cover

Touch Board

Filter Board

Conduit Clamp

Insulation Right

Aluminum Heat Shield

Righ Gen Mod

Right Side Generator Board

Right Generator Module Box

Protective Tape

Burner Box

Hold-Down Brackets with Thumbscrews

Baffle

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30-in. Models ZHU30 and PHP900

Elements

Touch Board

Shield

Glass

Wiring Harness

Cable Kit

Left Side Generator Board

Fan

Fan Cover

Foam Seal

Wire Harness

Electrical Cover

Filter Board

Right Side Generator Board

Generator Module

Generator Module Box

Protective Tape

Burner Box

Hold-Down Brackets with

Thumbscrews Conduit Clamp

Baffle

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36-in. Models ZHU36 and PHP960

Aluminum

Heat Shield

Touch Board

Filter Board

Left Side Generator Board Center Generator Board

Left Side

Fan

Main Fan

Thermal

Cut-out

Filter Board

Thermal

Cut-out

Right Side Generator Board

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30-in. Models ZHU30 and PHP900

Aluminum

Heat Shield

Touch Board

Fan

Filter Board

Thermal

Cut-out

Right Side Generator Board

Left Side Generator Board

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Cooktop Components

WARNING: Before servicing the cooktop, power

must be removed from the cooktop by turning the power off at the circuit breaker.

WARNING: Sharp edges may be exposed when servicing. Use caution to avoid injury. Wear Kevlar gloves or equivalent protection.

Note: When servicing the cooktop, care must be taken not to scratch or damage the glass.

All components are accessible by removing the • glass top.

If the display/touch board is damaged, it can • be replaced as a unit by removing the glass top and replacing the touch board. The touch board is located by pins and springs/foam tape on the back side of the board.

If the power or ﬁ lter boards are damaged, they • can be replaced by removing the glass top, removing the elements, removing the touch board, and removing the aluminum heat shield and insulation. This will allow access to the electronics assemblies, and the board can be removed and replaced.

Cooktop Removal From Countertop

To remove the cooktop from the countertop:

Caution: The hold-down brackets, heat bafﬂ e (if

installed), and screws on the bottom of the burner box can damage the countertop surface. Use care to protect the countertop appearance.

Open the cabinet door and remove each of the 1. 2 thumbscrews that secure the cooktop to the bottom of the countertop.

Remove the outer hex-head screw from each 2. hold-down bracket.

Loosen the inner hex-head screw from each 3. hold-down bracket.

Cooktop Countertop

Cooktop

Bracket

Countertop

Appearance Defects

Scratches, marks, discoloration, stains, spots, etc. can be caused by food, cookware, utensils, cleaning solutions, or water. Before replacing the cooktop, use the cooktop cleaning procedure outlined in the Owner’s Manual.

Thumbscrew

Inner Screw

Outer Screw

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(Continued next page)

Page 22

4. Turn the bracket inwards to avoid interference when lifting the cooktop from the countertop.

Bottom of Cooktop

Note: In the following step a bafﬂ e is not installed if cooktop is installed over an oven.

Glass Maintop

The glass maintop must be removed for element, sensor testing, and touch board replacement. The glass maintop is attached to the burner box with twelve 1/4-in hex-head screws (4 on the front, 4 on the back, and 2 on each side). After removing the screws, the glass maintop can then be lifted straight up and placed on a towel or padded surface.

30-in. Model

Elements

5. Remove the two 1/4-in. hex-head screws and the bafﬂ e from the bottom of the cooktop.

Note: In the following step, it will be necessary to utilize 2 strips of wood or cardboard.

6. Push upward on the bottom of the burner box approximately 4 in. and rotate slightly left or right (to the best working advantage). Shim under the burner box with protective wood or cardboard as shown.

Each element consists of a coil and a sensor. The resistance value of the coil is less than 1Ω at room temperature. The resistance value of the sensor is 1000Ω at room temp (+or-10%). The sensor has a positive coefﬁ cient. As the temperature increases, the sensor's resistance increases. The sensor and coil are replaced as a complete assembly.

To remove heating elements:

Remove the glass maintop. (See 1. Glass Maintop.)

Mark the alignment pins and guides for correct 2. replacement.

Caution: To prevent damage to element insulation, care should be taken when handling an element.

Note: If some insulation should separate from the element, it can be placed back on the element in its original position. Do not use any adhesives.

3. Lift an element off the pins and carefully place it away from the wire entry.

O N

/O F

N /O

F O N

/O F

HOT

R MING ZO

1 2 IN

9 IN

6 IN

O N

/ O F

C E

C O N T

R O

LOC

O N

/ O F

Guide

Sensor

Element

(Continued next page)

– 22 –

Page 23

4. Lift and fold back the insulation from the wire entry in the heat shield.

Note: On 11- and 8-in. elements, the choke must be removed and transferred to the replacement element. The choke must be attached at the same location on the wires and secured with a plastic wire tie.

Insulation

5. Note the routing of the element wires and loosen the two slotted T-25 Torx screws holding the element wires to the generator board.

Note

The element wire terminals are forked and can • be removed without completely removing the screws.

The individual wires from each element have no • polarity and can be connected to either of the screw posts for that speciﬁ c element.

6. Use a ﬂ atblade screwdriver to press the lock tab inward, then lift the element sensor connector from the generator board.

Choke

Plastic Wire Tie

Touch Board

The touch board employes a capacitive touch system. When the glass keypad is touched, the circuit is completed and the touch board responds to the selection.

The touch board is positioned under the glass top. Springs attached to the bottom of the touch board and capacitance foam pads on top, provide precise touch sensitivity between the touch board and the cooktop glass.

To remove the touch board:

7. Extract the element wiring from the wire entry in the heat shield.

Element Connection

Sensor Connection

Element Connection

Remove the glass maintop. (See 1. Glass Maintop.)

Note the location of the touch board wire 2. harness, then disconnect the wire harness from the touch board.

Note: To insure proper positioning when replacing the touch board, be sure to engage pins in guides.

Capacitance Foam Pad

Guide

– 23 –

(Continued next page)

Page 24

Note: The bottom of the touch board is attached to the heat shield with an adhesive foam cushion.

3. Raise the back of the touch board approximately 1 inch. Using a putty knife at a shallow angle, gently separate the foam spacer from the heat shield.

Putty Knife

Note: If one or more functions do not work and no apparent damage is present, the cause can be an excessive ﬂ at-bottom drop of the packaged unit during shipping/handling. The force of the drop can position the heat shield out of proper alignment to the heat shield mounting tabs. This would cause improper spacing between the underside of the glass top and the capacitive switches on the module, rendering the switches inoperative.

Result of Excessive Flat-bottom Drop

Heat Shield Tab

Note: Make sure all springs and capacitance foam pads are in place for precise touch sensitivity between the touch board and the cooktop glass.

Spring

Heat Shield

To correct a misaligned heat shield it is necessary to remove the glass top. (See Glass Top.)

There are 10 tabs on 30-in. models and 14 tabs on 36-in. models. All tabs are located along the perimeter of the heat shield.

Tab Locations- 30-in. Model



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(Continued next page)

Page 25

Tab Locations - 36-in. Model



In the following illustrations, the heat shield is out of alignment due to an excessive ﬂ at-bottom drop of the cooktop. A large ﬂ at blade screwdriver can be inserted in the gap on the left-side of the tab.

It may be necessary to insert the screwdriver in the right-side gap, push down on the screwdriver, and raise the heat shield even with the tab.

Inspect all tab-to-heat shield alignment areas. Repeat this alignment procedure on all tabs, if necessary.

The heat shield can be aligned with the tab by pushing down on the screwdriver and raising the heat shield even with the tab.

Properly Aligned Heat Shield

– 25 –

Page 26

Heat Shield

To remove the heat shield:

Remove the elements. (See 1.

6. Remove the 20 Phillips-head screws from the top of the heat shield. (On 30-in. models, remove the 5 Phillips-head screws from the top of the heat shield.)

Elements.)

Lift and remove the left and right insulation 2. spacers.

Disconnect the touch board wire harness and 3. remove the tape that holds the harness to the heat shield.

Lift the insulation from the wire entry in the heat 4. shield and tuck the touch board wire harness under the heat shield.

36-in. model shown

Disconnect

Rail

36-in. model shown

7. Raise the rear of the heat shield approximately 3 inches and disconnect the 2 ground wires from the bottom of the heat shield.

Rear view shown

Insulation Spacers

5. On 36-in. models, remove the fourteen 1/4-in. hex-head screws, (5 on the front, 5 on the back, and 2 on each side) from the outside of the burner box. (On 30-in models, remove the 10 1/4-in. hex-head screws, (3 in the front, 3 in the back, and 2 on each side) from the outside of the burner box.)

36-in. model shown

8. Lift and remove the heat shield from the burner box.

Note

The generator modules are not secured to • the burner box. With the heat shield removed, generator modules can be accidentally moved out of position. To ensure proper alignment of the modules to the heat shield, it may be helpful to note and mark the position of the generator modules.

If a generator module has shifted out of position, • it may be helpful to drive one corner screw and then shift the generator module as necessary to align the other holes.

– 26 –

Page 27

LINbus Connectors

Caution: To prevent damage to LINbus (Local

Interconnect Networkbus) connections, properly use (as shown below) a Molex 69008-1070 tool when removing LINbus connectors.

Note: A Molex 69008-1070 tool will be provided with any part that requires the LINbus connectors to be removed.

Molex 69008-1070 Tool

Correct way: Use side-to-side motion to remove the

LINbus connector.

CORRECT

Note

LINbus is a communication network comprised • of a LIN master and one or more LIN slaves. In these cooktops, the ﬁ lter board (right ﬁ lter board on 36-in. models), acts as the LIN master while the generator boards and left ﬁ lter board (on 36-in. models) are the LIN slaves.

Do not use front-to-back motion to remove LINbus connector.

INCORRECT

All of these components receive a signal to • perform a speciﬁ c task, but only the appropriate component will act on the message and respond accordingly. The component which acts on the speciﬁ c task is based on programming. Since the LINbus signal is a digital control signal, special equipment, such as an oscilloscope, is required to measure it.

Touch Board

Generator

Board

Element

Filter

Board

Generator

Board

Element

– 27 –

Page 28

Generator Boards

To remove the generator boards:

Remove the heat shield. (See 1.

Note: The thermal cut-out on the right and left generator boards on the 30-in. model and on the center and right generator boards on the 36-in. models are joined together with 2 metal clips. The clips must be removed to replace either generator board.

2. If applicable, use a small ﬂ at blade screwdriver to pry up and remove the 2 thermal cut-out clips.

Clip

Heat Shield.)

6. Remove the two T-15 Torx screws that hold the generator to the module base.

7. Lift the heat sink side and slide the generator board away from the 2 tabs on the module base.

Tab

Disconnect

Tab

Thermal

Cut-out

Clip

3. Mark the location of the black L1 and the blue L2 wires and disconnect both from the generator board.

Note: When replacing the L1 and L2 wiring connecting the ﬁ lter board to the generator board, connect that wiring in a matching conﬁ guration. For example, if the L1 output is connected to the bottom terminal on the ﬁ lter board, it must be connected to the bottom terminal on the generator board.

Thermal Cut-out

The thermal cut-out is located between the ﬁ ns of each generator board heat sink and is connected to the ﬁ lter board with a wire harness. The location of the thermal cut-out allows it to sense an overtemperature condition of the generator board.

The thermal cut-out has a resistance value of less than 1 Ω and opens at approximately 250°F. An open thermal cut-out will stop operation of the cooktop. If the thermal cut-out is open, check for proper operation of the fan and possible vent obstructions.

Disconnect

4. Disconnect the LINbus connector. (See

Connectors.)

5. Note the position of the thermal cut-out and pull it out of the heat sink ﬁ ns.

LINbus

Thermal Cut-out

– 28 –

Page 29

Filter Board

To remove the main ﬁ lter board:

5. Mark the location, then disconnect the black L1, blue L2, and ground wire connections on the ﬁ lter board.

Remove the heat shield. (See 1.

Heat Shield.)

Lift the front of the module and mark the 2. location of the black, red, and green wires and the 2 jumper blades connected to the ﬁ lter board power terminals.

Using a T-20 Torx or a ﬂ at blade screwdriver, 3. remove the 4 screws, black and red wires, and the 2 jumper blades.

Loosen the ground wire screw and remove 4. the ground wire from the ﬁ lter board power terminal. Lower the module into the burner box.

LINbus

Remove

Tab

6. Disconnect the thermal cut-out, touch board, and fan motor wire harnesses.

7. On 36-in. models, disconnect the ﬁ lter-to-ﬁ lter wire harness.

8. Disconnect the LINbus connectors. (See

Connectors.)

LINbus

9. Using a ﬂ at blade screwdriver, carefully press in the large 1 (30-in. model) or 2 (36-in model) tabs away from the ﬁ lter board. Lift the ﬁ lter board and pull the ﬁ lter board away from the smaller tab on the module base.

Remove

Jumper

Blade

Remove

Loosen

Jumper

Blade

Bottom of module shown

Tab

Note

Tab

LINbus

Touch Board

Wire Harness

Filter-to-Filter

Wire Harness

Arrows indicate disconnect locations

To remove the left side ﬁ lter board on the 36-in. model, follow steps 1, and 5 through 9. The touch board • wire harness is not connected to the left side ﬁ lter board.

The left side ﬁ lter utilizes a non-replaceable fuse. Never attempt to replace the fuse. If the fuse is found to • be open, replace both left side ﬁ lter and generator boards.

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Page 30

Fans

The fan on the 30-in. model cools the left and right generator board heat sinks.

The 36-in. model utilizes 2 fans. The main fan cools the right and center generator board heat sinks. An additional fan cools the left side generator board heat sink.

Fans change speed based on heat. At low settings the fan may not operate. As heat increases, the fan will come on and increase in speed as heat increases. When the highest power level (Boost)

is selected (indicated by H on the display), the fan

automatically comes on.

A single wire harness is connected to each fan motor. All fans are operated by 12 VDC motors.

Caution: To prevent damage to fragile fan locking tabs, test fan before removing it from the module.

Note: When testing these fans:

• You cannot test with an ohmmeter.

30-in. Model Fan and 36-in Model Main Fan

Disconnect

36-in. Model Left Side Fan

Disconnect

• Fan can be run for a short period of time using a 9-volt battery. Connect the negative (-) battery terminal to the black wire. Connect the positive (+) battery terminal to the white wire.

The fan for the 30-in. model and the main fan on the 36-in. model are attached to the module base with 5 tabs. On the 36-in. model the left side generator fan is attached to the module base with 3 locking tabs. It is necessary to remove the heat shield to access the fans. (See Heat Shield.)

– 30 –

Page 31

Diagnostics and Service Information

Failure Codes

The cooktop operates a self-diagnostic mode when power is applied. The touch board has error codes that can be utilized by the service technician in order to quickly identify failed or improper operation of certain cooktop components. To access failure codes, simultaneously press the TIMER ON/OFF and CONTROL LOCK

for approximately 10 seconds. Error codes will blink in the window of the corresponding element. The

pads

replacement of the failed component will clear the error code.

Whenever a failure code is encountered and before attempting to replace any components:

Turn off the power supply for 30 seconds, then reset it to see if this clears the failure code.1.

Verify proper voltage and orientation of the power supply wiring connections.2.

FAULT CAUSE CORRECTIVE ACTION

Er31 (36-in. models only)

Er47 Bad communication in the ribbon

Er39 Internal electronic failure on

Er20 Internal electronic failure on

Er22 Internal electronic failure on

Ec Touch board is perceiving water

Eo Rate of temperature increase is

One ﬁ lter board not conﬁ gured to work with the other ﬁ lter board.

cable between touch board and ﬁ lter board.

touch board

or food on keypanel.

too fast or temperature at element is too high

Press and hold timer up key. Press and release RF on/off key. Press and release LF key. Release timer up key. Allow display to scroll horizontal bars and beep.

Replace ﬁ lter board. Visually check ribbon cable connection from touch

board to ﬁ lter board. Replace ﬁ lter board. Replace touch board.

Replace touch board.

Clean keypanel area. Replace touch board.

Check if an empty pan is being heated.

Check for obstruction in fan, wire connections to board.

Check fan vents for air blockage. Replace element.

(Continued next page)

– 31 –

Page 32

FAULT CAUSE CORRECTIVE ACTION

E5 Internal electronic failure on ﬁ lter

board

E6 Internal electronic failure on gen-

erator board

E7 Unknown error in system Visually check for loose wires/connections. Replace

E9 Rate of temperature increase is

too fast or open sensor

Element not

Auto shut off activated Refer to Owner’s Manual―unit shuts down hot enough/ element shuts down

Foreign object on keypanel area

is activating touch board.

Pan not detected. Check pans for ﬂ at bottom.

Pan not detected. Check pans with magnet for steel content.

Pan not detected. Check pan size vs element size.

Element turns off if pan is off

burner more than 30 seconds. Element

changes

Internal temperature mainte-

nance cooking level

Fan not running

Display ﬂ ash- es, not heating

Fan doesn’t run at low heat set-

tings.

Pan not detected. Check pans for ﬂ at bottom.

Pan not detected. Check pans with magnet for steel content.

Pan not detected. Check pan size vs element size.

Element not connected, open

connection. Buzzing sound Elements may make a “buzz”

sound on boost and high.

Check AC coming to home >208 VAC. Replace ﬁ lter board. Replace generator board.

generator module. Visually check sensor connection to generator board.

Replace element. Replace generator board.

after 18 hours. Clear obstruction from keypanel.

Check if pan has been removed from element for more than 30 seconds.

Refer to Owner’s Manual―element reduces from Boost to 9 after 10 minutes.

Fan changes speeds based on heat.

Check connections on element wires.

Refer to Owner’s Manual― element may make an audible sound when on high.

– 32 –

Page 33

WARNING: To prevent electrical shock, disconnect power to the cooktop prior to servicing.

Model ZHU36 and PHP960

Aluminum Plate

Schematics and Wiring Diagrams

2 Wire

CAUTION: *A special tool is required when removing the connections (marked with an *) from the circuit boards. Damage to the circuit boards or cables may occur without the special tool.

Caution: *A special tool is required when removing the connections (marked with an *) from the circuit boards. (See LINbus Connectors.) Damage to the circuit boards or wiring harnesses may occur without utilizing the special tool.

Not used

4 Wire

– 33 –

WIRE COLORS

BARE U

BLACK B or BK

BLUE N or BU

BROWN C or BR

GRAY S or GY

GREEN G or GN

ORANGE O

RED R VIOLET V WHITE W

YELLOW Y

(Continued Next Page)

Page 34

Model ZHU30 and PHP900

Aluminum Plate

Ground

CAUTION: *A special tool is required when removing the connections (marked with an *) from the circuit boards. Damage to the circuit boards or cables may occur without the special tool.

GND

– 34 –

Touch Board Cable

WIRE COLORS

BARE U

BLACK B or BK

BLUE N or BU

BROWN C or BR

GRAY S or GY

GREEN G or GN

ORANGE O

RED R VIOLET V WHITE W

YELLOW Y

Page 35

Warranty

All warranty service provided by our Factory Service Centers, or an authorized Customer Care

technician. To schedule service, on-line, visit us at ge.com, or call 800.GE.CARES (800.432.2737). (In Canada, call 1.800.561.3344.) Please have

Staple your receipt here.

Proof of the original purchase

date is needed to obtain service

under the warranty.

serial number and model number available when calling for service.

For The Period Of: GE Will Provide:

One Year Any part of the cooktop which fails due to a defect in materials or workmanship. During this

From the date of the limited one-year warranty, GE will also provide, free of charge, all labor and in-home service original purchase to replace the defective part.

What GE Will Not Cover:

■ Service trips to your home to teach you how to use

the product.

■ Improper installation, delivery or maintenance.

■ Failure of the product if it is abused, misused,

or used for other than the intended purpose or used commercially.

■ Damage to the glass cooktop caused by use of

cleaners other than the recommended cleaning creams and pads.

■ Replacement of house fuses or resetting of circuit

breakers.

■ Damage to the product caused by accident, fire, floods

or acts of God.

■ Incidental or consequential damage caused by possible

defects with this appliance.

■ Damage caused after delivery.

■ Product not accessible to provide required service.

■ Damage to the glass cooktop caused by hardened

spills of sugary materials or melted plastic that are not cleaned according to the directions in the Owner’s Manual.

EXCLUSION OF IMPLIED WARRANTIES—Your sole and exclusive remedy is product repair as provided in this Limited Warranty. Any implied warranties, including the implied warranties of merchantability or fitness for a particular purpose, are limited to one year or the shortest period allowed by law.

This warranty is extended to the original purchaser and any succeeding owner for products purchased for home use within the USA. If the product is located in an area where service by a GE Authorized Servicer is not available, you may be responsible for a trip charge or you may be required to bring the product to an Authorized GE Service location for service. In Alaska, the warranty excludes the cost of shipping or service calls to your home.

Some states do not allow the exclusion or limitation of incidental or consequential damages. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. To know what your legal rights are, consult your local or state consumer affairs office or your state’s Attorney General.

Warrantor in the USA: General Electric Company. Louisville, KY 40225

Warrantor in Canada: Mabe Canada Inc., Burlington, Ontario

– 35 –