Monogram ZGU384L Technical Service Manual Download Page 8

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Model Designator

Designates features – the higher

the number, the more features.

Z G U 3 8 5 N S M I S S

Brand

Z = Monogram

Gas

Exterior Color

SS = Stainless Steel

Model Year Designator

Indicator for Engineering

and Product Service only

Model Number

The nomenclature plate is located on the

bottom of the burner box. In addition to the

model and serial numbers, it contains the

ratings of the burners, the type of fuel, and the

pressure the cooktop was adjusted for when

it left the factory. Also included are minimum

wall clearance requirements.

The mini-manual is located under the control

panel.

Nomenclature

Serial Number

The ﬁrst two characters of the serial number

identify the month and year of manufacture.

Example:

123456S = January, 2006

- JAN

2006 -

D - FEB

2005 - H

F - MAR

2004 - G

G - APR

2003 - F

H - MAY

2002 - D

L - JUN

2001 - A

M - JUL

2000 - Z

R - AUG

1999 - V

S - SEP

1998 - T

T - OCT

1997 - S

V - NOV

1996 - R

Z - DEC

1995 - M

Conﬁguration

U = Cooktop

Fuel

N = Natural gas
L = Liquid propane

Ignition System

Oriﬁce/Jet DMS

Natural Gas

LP Gas

LPG @ 10" WCP

Rear

Large Center Large Front

Rate, HI

9.1K

15K

Rate, LOW

2.4K

Rate, SIM

1.1K

1.2K

Main Orifice

0.84mm

1.08 mm

Sim. Orifice

0.31mm

0.34mm

Main Orifice #

84XL

Front

9.1K

2.4K

1.1K

0.84mm

0.31mm

84XL

108XL

31SL

34SL

Sim. Orifice #

Natural @ 5" WCP

Rear

Large Center Large Front

Rate, HI

10K

18K

Rate, LOW

2.4K

Rate, SIM

1.1K

1.2K

Main Orifice

1.38mm

1.9 mm

1.9mm

Sim. Orifice

0.51 mm

Main Orifice #

138XN

Front

12K

2.4K

1.1K

1.48 mm

0.51 mm

148XN

190XN

51SN

Sim. Orifice #

The letter designating

the year repeats every

12 years.

Example:

T - 1974

T - 1986

T - 1998

Summary of Contents for ZGU384L

Page 1: ...iances General Electric Company Louisville Kentucky 40225 31 9144 30 and 36 in Monogram Stainless Steel Gas Cooktops ZGU384L ZGU384N ZGU385L ZGU385N Technical Service Guide October 2006 GE Consumer Industrial ...

Page 2: ...switch do not use any phone in the building Immediately call the gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach the gas supplier call the ﬁre department 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 n...

Page 3: ...Conversion 25 High Altitude Conversion 28 Ignitor 17 Ignitor and Light Switch Assembly 19 Ignitor Switch Test 30 Indicator Light Switch Test 30 Indicator Light Assembly 18 Installation 5 Introduction 4 Maintop 17 Manifold 23 Nomenclature 8 Schematics and Wiring Diagrams 31 Spark Module 22 Transformer 23 Transformer Check 30 Troubleshooting 29 Warranty 35 ...

Page 4: ...teel cooktop surface Continuous interlocking porcelainized cast iron grates Stainless steel tactile grip control knobs with burner on indicator lights Dual ﬂame sealed cooktop burners with 140 F simmer selection Electronic pilotless ignition Automatic re ignition Factory set fuel type with conversion kit included ...

Page 5: ...ning in the countertop To ensure accuracy it is best to make a template for the opening Make sure the sides of the opening are parallel and the rear and front cuts are exactly perpendicular to the sides Observe all minimum clearances 3 Make sure the wall coverings countertop and cabinets around the cooktop can withstand heat up to 200 F generated by the cooktop 3 1 2 30 3 4 21 15 16 deep at center...

Page 6: ...cular to the sides Observe all minimum clearances 3 Make sure the wall coverings countertop and cabinets around the cooktop can withstand heat up to 200 F generated by the cooktop 3 1 2 36 3 4 21 3 16 deep at center 12 min from cutout to side wall 2 1 2 min from cutout to front of countertop 3 3 8 min from cutout to rear vertical combustibles 12 min from cutout to side wall 33 7 8 36 or wider cabi...

Page 7: ... nipple for test with a manometer Turn on the gas and light at least one burner to serve as a load Reinstall the regular plug and check for leaks 1 min 12 Gas supply line Electric Supply This cooktop features pilotless electronic ignition for energy savings and reliability It operates on a 120 volt 60 Hz power supply A separate circuit protected by a 15 amp time delay fuse or circuit breaker is re...

Page 8: ...uary 2006 A JAN 2006 L D FEB 2005 H F MAR 2004 G G APR 2003 F H MAY 2002 D L JUN 2001 A M JUL 2000 Z R AUG 1999 V S SEP 1998 T T OCT 1997 S V NOV 1996 R Z DEC 1995 M Conﬁguration U Cooktop Fuel N Natural gas L Liquid propane Ignition System Oriﬁce Jet DMS Natural Gas LP Gas LPG 10 WCP Rear Large Center Large Front Rate HI 9 1K 15K 15K Rate LOW 2 4K 2 4K 2 4K Rate SIM 1 1K 1 2K 1 2K Main Orifice 0 ...

Page 9: ...ne On Each Control Knob 5 Burner Grates 1 2 1 4 5 3 1 ZGU384 30 Gas Cooktop Features Throughoutthis manual features and appearance may vary 1 Dual Flame Spillproof Burners HighOutput 2 Dual Flame Spillproof Burners X HighOutput 3 Tactile touch Control Knobs One For Each Surface Burner 4 Burner ON Indicator Lights One On Each Control Knob 5 Burner Grates 1 1 1 5 1 2 4 3 ZGU385 36 Gas Cooktop ZGU384...

Page 10: ... HIGH position Use extreme caution when lighting burners this way To light a burner How to select flame size Watch the flame not the knob as you reduce heat The flame size on a gas burner should match the cookware you are using FOR SAFE HANDLING OF COOKWARE NEVER LET THE FLAME EXTEND UP THE SIDES OF THE COOKWARE Any flame larger than the bottom of the cookware is wasted and only serves to heat the...

Page 11: ... surface but no special cleaning is required Wash the knobs in soap and water but do not soak Avoid getting water down into the knob stem holes Replace the knobs after drying DO NOT attempt to clean your knobs in a dishwasher NOTE The knob stem is D shaped Replace the flat side of the knob onto the flat side of the stem Do not use a steel wool pad it will scratch the surface To clean the stainless...

Page 12: ...r replacement rubber grate feet please call our toll free number National Parts Center 800 626 2002 Rubber Grate Feet Part No WB02T10101 Burner grates Arc Arc Locking Rails Arc Arc Continued next page Dual flame spill proof burners The burner consists of three parts the burner base burner head and burner cap The burner head and burner cap can be lifted off making them easy to clean CAUTION DO NOT ...

Page 13: ...er cap is properly seated on the burner head Medium Burner Large Burner Medium Burner Medium Burner Medium Burner Medium Burner Medium Burner Medium Burner Burner head Burner base Electrode Burner cap Burner cap not properly seated Burner cap properly seated NOTE Before removing the burner parts remember their size and location Replace them in the same location after cleaning for proper burner ope...

Page 14: ...ap Burner Head Maintop Burner Box Model ZGU384 maintop and top heat barrier removed Spark Module Transformer Burner Burner Burner Burner Indicator Light Assembly Continued next page Manifold Ignitor Burner Valve 1 of 4 Ignitor and Light Switch 1 of 4 ...

Page 15: ...maintop and top heat barrier removed Spark Module Transformer Indicator Light Assembly Burner Burner Burner Burner Burner Burner Cap Burner Head Maintop Burner Box Manifold Ignitor Burner Valve 1 of 5 Ignitor and Light Switch 1 of 5 ...

Page 16: ...rner base to assist in alignment of burner base to maintop Remove the three T 15 Torx screws from the maintop and the two T 15 Torx screws that attach the burner base to the maintop 1 2 WARNING Disconnect electrical power to the cooktop and turn OFF gas at the main valve before performing any removal procedures Note The cooktop itself is not equipped with a gas shutoff valve If installed correctly...

Page 17: ...aintop from the burner box 1 2 3 Ignitor Note The following describes the procedure to remove a single ignitor The procedure to remove the remaining ignitors is identical To remove the ignitor Remove the burner base See Burner Base Use a small needle nose pliers and remove the clip and spring from the ignitor 1 2 Pull out the ignitor from the burner base 3 Burner Box Maintop Top Heat Barrier Note ...

Page 18: ...dicator on top of the knob The circuit boards are wired to an indicator light harness and are replaced as one unit This light harness is enclosed in a housing located under the maintop above the burner valves and can be removed as an indicator light assembly It is necessary to remove the indicator light assembly to access the ignitor and light switch assembly burner valves and manifold To remove t...

Page 19: ...ormer ground wire to the burner box 4 5 Note Before removing the ignitor and light switch assembly from the burner valves and the burner box note the switch and wire locations Release the ignitor and light switch assembly wiring from the wire retainers if utilized in the bottom of the burner box Lift each ignitor switch from the burner valve stem and remove the ignitor and light switch assembly fr...

Page 20: ... the procedure to remove a single burner valve The procedure to remove the remaining valves is identical To remove the burner valve on model ZGU385 Remove the maintop See Maintop Remove the indicator light assembly See Indicator Light Assembly Lift the ignitor switch from the burner valve stem See Ignitor and Light Switch Assembly Remove the 9 16 in nut and separate the Hi Lo gas tube from the bur...

Page 21: ...6 in nut and separate the Simmer gas tube from the burner Remove the two in hex head screws that attach the burner to the burner box 3 4 5 6 Burner Hi Lo Gas Tube Simmer Gas Tube To remove the burner valve on model ZGU384 Remove the maintop See Maintop Remove the indicator light assembly See Indicator Light Assembly Lift the ignitor switch from the burner valve stem See Ignitor and Light Switch As...

Page 22: ...he burner Remove the two in hex head screws that attach the burner to the burner box 1 2 3 4 5 Spark Module To remove the spark module Remove the regulator Remove the maintop See Maintop Remove the top heat barrier by lifting it out of the burner box Remove the two in hex head screws and the module cover 1 2 3 4 Disconnect the wire harness from the spark module Mark and disconnect the ignitor wire...

Page 23: ...ifting it out of the burner box Remove the indicator light assembly See Indicator Light Assembly Remove the ignitor and light switch assembly See Ignitor and Light Switch Assembly Remove the 9 16 in nut and the Hi Lo gas tube from the right front and the right rear burners and burner valves Remove the 7 16 in nut and the Simmer gas tube from the right front and the right rear burners and burner va...

Page 24: ... from Model ZGU384 Remove the regulator Remove the maintop See Maintop Remove the top heat barrier by lifting it out of the burner box Remove the indicator light assembly See Indicator Light Assembly Remove the ignitor and light switch assembly See Ignitor and Light Switch Assembly Remove the 9 16 in nut and the Hi Lo gas tube from each of the 4 burner valves Remove the 7 16 in nut and the Simmer ...

Page 25: ...ator by the following instructions Unscrew the cap Place your thumb against the flat side of the spring retainer and press down to remove the retainer Carefully look at the spring retainer to locate the NAT or LP position Turn the spring retainer over so that the desired gas is showing on the bottom Snap the retainer back into position Screw the cap back onto the regulator 1 DOWN FOR OFF NAT LP LP...

Page 26: ...108XL 190XN 148XN SIMMER ORIFICES MAIN ORIFICES IMPORTANT Orifices must be located exactly as shown Carefully read and observe each orifice label for correct location SIMMER ORIFICES MAIN ORIFICES Model ZGU384 Model ZGU385 ...

Page 27: ...w until flame appearance is correct E Testing Flame Stability Test 1 Turn the knob from HI to LO quickly If the upper row of flames goes out at this setting increase the flame size and test again Test 2 With the burner on LO open and close the cabinet door under the cooktop If the flame is extinguished by the air currents created by the door movement increase the flame height and test again NOTE W...

Page 28: ...he cooktop during any pressure testing of the gas supply piping system at test pressures equal to or less than 1 2 psig To Cooktop Regulator Pipe Stub Shut Off Valve Solid Piping or Flexible Connector Remove the burner caps and main burner head brass NOTE Do not remove the burner base Remove the orifice using a 7 mm nut driver There are 2 orifices on each burner Use a piece of sticky tape in the s...

Page 29: ...r tripped Replace the fuse or reset the circuit breaker Burner parts not replaced correctly Make sure pins in the burner head are properly located in the burner base holes Holes or slits in burners clogged Clean or replace as necessary Make sure all compo nents are dry before reassembly Liquid in burner base due to spillage Remove burner ring to check Clean and dry thorough ly before reassembly Or...

Page 30: ...ts are inoperative and the transformer and indicator light switches test OK replace the indicator light harness Burner Location Wire Colors Center Transformer Red to Module SW5 Gray Left Rear Transformer Red to Module SW3 Orange Left Front Transformer Red to Module SW2 Yellow Right Rear Transformer Red to Module SW4 Brown Right Front Transformer Red to Module SW1 Blue Note If a single ignitor does...

Page 31: ...cal power before servicing Caution Label all wires prior to disconnection Wiring errors can cause improper and dangerous operation Verify operation after servicing Schematics and Wiring Diagrams ZGU384 Schematic Continued next page ...

Page 32: ... 32 ZGU385 Schematic Continued next page ...

Page 33: ... 33 ZGU384 Wiring Diagram Continued next page ...

Page 34: ... 34 ZGU385 Wiring Diagram ...

Page 35: ...for the service technician s travel costs to your home All warranty service will be provided by our Factory Service Centers or by our authorized Customer Care servicers during normal working hours Should your appliance need service during warranty period or beyond in the USA call 800 444 1845 In Canada 888 880 3030 Please have your serial number and model number available when calling for service ...

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Monogram ZGU384L, Technical Service Manual, Page: 8 / 35

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