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Gas Cooktop (CTG) Series

Gas Cooktop (CTG) Series

Troubleshooting Guide

5-2

#802985 - Revision E - August, 2011

TROUBLESHOOTING GUIDE

This section of the manual contains the General Troubleshooting Guide which will help the Service Technician trou-
bleshoot a Wolf Gas Cooktop.

How to Use the Troubleshooting Guide

The troubleshooting guide table of contents shows how the troubleshooting guide is laid out. The troubleshooting
guide is organized into component areas with the most common problems listed first.

On the table of contents below, identify the description of the problem that the unit is experiencing. To the left of the
problem description is a letter. Locate that letter in the left column of the Troubleshooting Guide. The center col-
umn of the troubleshooting guide will identify the possible causes for the problem. The information to the right of the
possible causes will explain what tests to perform in order to determine if what you are checking is the cause, and/or
what action to take to correct the problem.

Troubleshooting Guide Table of Contents

page #

Problems Associated with the Surface Burners

Constant Sparking .................................................... 5-3

Intermittent Spark .................................................... 5-3

Poor ignition .............................................................. 5-3

No ignition .................................................................. 5-4

Popping noise ............................................................ 5-4

Flame appearance .................................................... 5-4
1.

Pulsing flames

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Summary of Contents for CT

Page 1: ... Information 2 Installation Information 6 Controls Operation 13 Component Access Removal 18 Troubleshooting Guide 26 Technical Data 29 Wiring Diagrams 31 subzero com 800 222 7820 CT Gas Cooktop Service Manual ...

Page 2: ...ardous or unsafe practices could result in minor personal injury or product and or property damage In addition please pay attention to the signal word NOTE which highlights especially important informa tion within each section TECHNICAL ASSISTANCE If you should have any questions regarding the appli ance and or this manual please contact Wolf Appliance Inc ATTN Service Department P O Box 44988 Mad...

Page 3: ...TES All warranties begin at the time of the initial installation All Warranty and Service information collected by Wolf Appliance Inc is arranged and stored under the unit serial number and or the cus tomer s name Please note that Wolf Appliance Inc requests that you have the model serial number available whenever contacting the facto ry or parts distributor See Figure 1 1 for serial tag layout Se...

Page 4: ...uct Type Size Fuel Finish Product Type CT Cooktop Size 15 15 inch wide unit 30 30 inch wide unit 36 36 inch wide unit Finish S Classic Stainless Steel P Platinum Stainless Steel Not Available for IM IG IS and IF B Carbon Stainless Steel Not available for Gas models Not available for IM IG IS and IF Fuel If Applicable LP Liquid Propane Gas Natural Gas If there is no LP at End of Model Number ...

Page 5: ...BTU s delivered at simmer 30 Gas 36 Gas Model Numbers Descriptions CT36G S Cooktop 36 Gas Stainless Steel Natural Gas CT36G S LP Cooktop 36 Gas Stainless Steel Propane CT36G P Cooktop 36 Gas Platinum Stainless Steel Nat Gas CT36G P LP Cooktop 36 Gas Platinum Stainless Steel Propane Five burner Two burners at 12 000 BTU 700 BTU S delivered at simmer Three burners at 9 200 BTU 300 BTU s delivered at...

Page 6: ...l burners Dual stacked sealed burners Single spark ignition with auto reignition for all burners 12 000 BTU hr and 9 200 BTU hr burners Low profile continuous porcelain coated cast iron grates Smart porting of all burners Back lit illuminated control panel Electric ratings 110 120V 15 amp circuit Available in Natural or LP gas Two and Five year warranty ...

Page 7: ...his appliance when installed must be properly grounded This appliance is equipped with a 3 prong grounding plug The power cord must be plugged into a mating 3 prong ground type receptacle See Figure 2 1 If a mating receptacle is not available it is the obligation of the customer to have a properly grounded 3 prong receptacle installed by a qualified electrician If the electric receptacle or the po...

Page 8: ...lve The supply line must be equipped with an approved shut off valve This valve should be located in accor dance to all national local codes and ordinances See Figure 2 2 NEVER USE OPEN FLAMES TO CHECK FOR GAS LEAKS ONLY USE A LEAK TESTING SOLUTION OF SOAPY WATER OR AN ELECTRONIC LEAK DETECTOR DO NOT USE LIQUID NEAR VALVE STEMS The maximum gas supply pressure to the regulator should never exceed 1...

Page 9: ...imum side clearance to combustible surface above countertop 24 61cm minimum clearance between top of cooking surface and bottom of wood or metal cabinet which is protected by not less than 1 4 6cm flame retardant millboard covered with not less than No 28 MSG sheet steel 015 04cm stainless steel or 024 06cm aluminum or 02 05cm copper 30 76 2 minimum clearance between top of cooking surface and bot...

Page 10: ...een top of cooking surface and bottom of wood or metal cabinet which is protected by not less than 1 4 6cm flame retardant millboard covered with not less than No 28 MSG sheet steel 015 04cm stainless steel or 024 06cm aluminum or 02 05cm copper 30 76 2 minimum clearance between top of cooking surface and bottom of an unprotected wood or metal cabinet NOTE Do not seal cooktop to countertop 36 oven...

Page 11: ...to the pressure regulator See Figure 3 10 Use a pipe joint compound made for natural and LP gas If a flexible connector is used be certain the tubing is not kinked NOTE All connections must be wrench tightened Do not make the connections to the regulator too tight Making the connections too tight could crack the pressure regulator Do not allow regulator to turn on the pipe when tightening fittings...

Page 12: ...op cutout 4 Using a 3 32 drill bit drill a deep pilot hole for the 6 32 3 mounting screws 5 Secure the Filler Strip Bracket 2 to the counter top 14 5 8 44 1 2 15 1 4 3 4 1 2 14 5 8 Figure 2 13 Filler Strip with Two Integrated Cooktops and a 30 Gas or Electric Cooktop Typical Installation 14 5 8 59 1 2 15 1 4 29 5 8 1 2 3 4 Figure 2 12 Filler Strip with Three Integrated Cooktops Typical Installatio...

Page 13: ...on the front of the cooktop cutout 5 Using a 3 32 drill bit drill a 3 4 deep pilot hole for the 6 32 mounting screws 3 Figure 2 14 Support Kit for DownDraft Ventilation Installation 3 1 2 2 Filler Strip Bracket Not Included CENTER OF CUTOUT Filler Strip Not Included Not Included 6 Install the Downdraft into the countertop opening but do not secure in place at this time 7 Secure the Rear Bracket Su...

Page 14: ... to 1150 BTU per cubic foot The variance is due to the various other substances found in natural gases The more ethane propane or butane in the gas raises the heating value Propane or LP gas has a heating value of about 2500 2800 BTU per cubic foot and butane about 3200 BTU per cubic foot Specific Gravity of Gas The specific gravity of a gas is the weight of one cubic foot or the gas compared to o...

Page 15: ...dditional air is required to assure complete burning of the gas The total air primary secondary and excess are expressed as percentages of the amount needed About ten cubic feet of air is required to com pletely burn one cubic foot of gas For this reason an appliance should not be operated in an air tight home Limits of Flammability Not all air to gas mixtures will burn Mixtures with 0 4 natural g...

Page 16: ...stribution Ring Routes the gas from the simmer orifice hood to the simmer port holes located on the burner cap Outer distribution Ring Routes the gas from the main burner orifice hood to the main burner port holes on the top of the burner head Jet Holder This component is mounted to the burner mounting bracket and to the burner box The main burner orifice is threaded into the jet holder as well as...

Page 17: ...r between the grates Each grate sets securely on dimples on each corner of the cooktop pan Continuous grates are interchangeable with the exception of the single grate Control Knobs Each knob is positioned to correspond to the burner regulated For the 36 inch cooktop the knob on the lower left side regulates the lower left burner Conversely the knob on the upper right side regulates the upper righ...

Page 18: ...to avoid streaking Protective polish Apply to surface to maintain lus ter and protect from some food stains Hard water stains Use white vinegar and water Cool first Wash in warm water with liquid deter gent or mild abrasive cleaners Foods high in acid or sugar content such as milk tomatoes sauerkraut fruit juices and pie filling may pit or craze the surface Remove as soon as possible Do not cook t...

Page 19: ...OUS BURNS AND OR EXPLOSIONS KEEP COMBUSTIBLES AWAY FROM THE APPLIANCE WHENEVER A FLAME IS PRESENT REMEMBER THAT SURFACES AND COMPONENTS GET HOT DURING THE USE OF THE APPLIANCE TO AVOID ELECTRICAL SHOCK POWER TO THE UNIT MUST BE DISCONNECTED WHENEVER ACCESS ING AND OR REMOVING COMPONENTS POWERED BY ELECTRICITY OR COMPONENTS NEAR OTHER ELECTRICAL COMPONENTS TO AVOID HAZARDOUS EXPLOSION OR GAS LEAKS ...

Page 20: ... located on the side of the outer distribution ring up through the outer portion of the inner distribu tion ring then to the bottom layer of holes on the burner head To remove the burner head remove the burner grates and lift the burner head off of the inner distribu tion ring See Figure 4 1 Venturi Removal The brass venturi mounts through the inner distribution ring and is threaded to the jet hol...

Page 21: ...oval The inner distribution ring routes the gas from the sim mer orifice hood to the simmer holes located in the burner head To remove the inner distribution ring the preliminary steps must be followed first Now remove the electrode and the venturi Then lift the inner distri bution ring from the cooktop pan being careful not to lose the O ring which is mounted in a groove in the underside of the i...

Page 22: ... first Then disconnect the flexible gas tube that is mounted to the jet holder Now extract the nuts from the pem studs that secure the jet holder to the burner mounting bracket and lift the jet holder off See Figure 4 7 Burner Mounting Bracket Removal The burner mounting bracket is mounted to the bottom of the burner box and acts as a spacer to keep the sur face burner components at the proper hei...

Page 23: ... with the valve switch and closes the electrical circuit to the spark module which provides the high voltage spark needed to ignite the burner To remove the valve switch you must first follow the preliminary steps listed at the beginning of this section Then extract the screw which secures the switch cover and remove Now lift the ring light off from the valve switch and disconnect the wiring and r...

Page 24: ...extract the screws that secure the support plate and lift off See Figure 4 9 Lead Wire Removal The lead wire is connected to the spark module and the spark electrode To remove the lead wire follow the preliminary steps listed at the beginning of this section first Now unplug the lead wire from the terminal con nection at the spark module and lift the lead wire out Power Cord with Grip Removal To r...

Page 25: ...e body of the valve To remove the gas valves follow the preliminary steps list ed at the beginning of this section first Next remove the ring light and valve switch Disconnect the flexible gas tubes from the valve and extract the bolts from the valve body and mounting bracket Now pull or twist the valve off of the manifold pipe See Figure 4 11 Gas Valve Orifice Each gas valve has two by pass screw...

Page 26: ...ou may have to remove the ring lights Now remove the gas valves and extract the nuts that secure the manifold pipe to the manifold mounting studs Then lift out manifold pipe See Figure 4 13 Regulator The regulator is attached to the threaded end of the manifold pipe that protrudes out of the bottom of the burner box NOTE To gain better access to the regulator you may have to pull the entire cookto...

Page 27: ... the description of the problem that the unit is experiencing To the left of the problem description is a letter Locate that letter in the left column of the Troubleshooting Guide The center col umn of the troubleshooting guide will identify the possible causes for the problem The information to the right of the possible causes will explain what tests to perform in order to determine if what you a...

Page 28: ...if improp er May have to convert unit to LP Natural gas Reverse Polarity at outlet or unit Ground wire disconnected at outlet or inside unit Spark module s wired incorrectly or defec tive Electrode not positioned properly Burner head not properly positioned on inner distribution ring Defective micro switch at burner valve Cut or splice in electrode wire Dirty electrode Cracked or damaged electrode...

Page 29: ...maged or dirty with food debris Inner distribution ring cracked or warped Burner head not positioned properly Burners not getting enough primary or sec ondary air Port holes in burner head not to specifica tion or damaged dirty Incorrect gas orifices Gas pressure Replace micro switch Replace clean electrode Replace repair wiring Replace spark module s Check outlet and circuit breaker Check gas pre...

Page 30: ...ypass 57 0 10 250 Valve Burner Small Orifice Main Bypass 57 0 10 250 Orifice Simmer Bypass 54 0 10 250 Distribution Ring Large Orifice Simmer M 0 10 250 Distribution Ring Small Orifice Simmer J 0 10 250 Jet Holder Large Orifice 161 0 10 250 Orifice 140 0 10 250 Jet Holder Small Orifice 140 0 10 250 Orifice 119 0 10 250 Description Stamp No Elevation In Feet Valve Burner Large Orifice Main Bypass 4...

Page 31: ...al Data Gas Cooktop CTG Series Gas Cooktop CTG Series 6 3 802985 Revision E August 2011 Electrode Alignment Electrode lines up with second row of ports on burner head Electrode Gap 11 2 7mm 02 5 mm Cooktop Pan ...

Page 32: ...D RED BLACK WHITE WHITE WHITE BLACK WHITE R SPARK MODULE WIRING DIAGRAM Model 15 GAS COOKTOP This wiring information is provided for use by qualified service personnel only Disconnect appliance from electrical supply before beginning service Be sure all grounding devices are connected when service is complete Failure to observe the above warnings may result in severe electrical shock ...

Page 33: ...N IGN IGN IGN RED RED RED RED WHITE WHITE WHITE BLACK WHITE BLACK WHITE WHITE GREEN BLK 1 1 2 2 WHITE WHITE RED RED BLK BLK BLK WIRING DIAGRAM Model 30 GAS COOKTOP This wiring information is provided for use by qualified service personnel only Disconnect appliance from electrical supply before beginning service Be sure all grounding devices are connected when service is complete Failure to observe...

Page 34: ...BLACK WHITE GREEN BLK BLACK BLK BLK RIGHT REAR CENTER REAR LEFT REAR CENTER FRONT LEFT FRONT BLK BLK RED RED WHITE WHITE 1 1 2 2 3 CONDUCTOR POWER CORD WIRING DIAGRAM Model 36 GAS COOKTOP This wiring information is provided for use by qualified service personnel only Disconnect appliance from electrical supply before beginning service Be sure all grounding devices are connected when service is com...

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