Whirlpool Gas Range Direct Spark Ignition System
Contents
1. 19 MEDIO elec ap C db dO 19 SUID CICS anes ida aw cals on 20 DTE TEES 23 a a canines corteo 23 Diagnostic Flow der e ir MEE T EE 23 IMPORTANT SAFETY INFORMATION Your safety and the safety of others is very important Important safety messages have been provided in this Job Aid Always read and obey all safety messages This is the safety alert symbol This symbol alerts you to hazards that can kill or hurt you and others All safety messages will be preceded by the safety alert symbol and the word WARNING All safety messages will identify the hazard tell you how to reduce the chance of injury and tell you what can happen if the instructions are not followed GENERAL INFORMATION IMPORTANT MODEL amp SERIAL NUMBER INFORMATION The Direct Spark Ignition System is used on Whirlpool gas ranges produced beginning January 3 2000 Serial Code RK02 The Model number of these units will be a 5 version of the current G line gas range Example SF365PEGQ5 This Direct Spark Ignition System will only be available on self cleaning gas ranges ELECTRICAL REQUIREMENTS The supply voltage is critical for proper opera t2. FIRE HAZARD Shut off gas supply line valve before servic ing the range Check all gas line connections and replace all panels before operating the range Failure to do so could result in explosion fire or other injury CAUTION When you work the gas range Gas Outlet be careful when handling the sheet metal parts Sharp edges may be present and you can cut 51 yourself if you are not careful Screws Lower the gas distribution valve so that it is free of the bake burner and lay it down 1 Turn off the gas to the range and discon as shown below nect the power cord from the wall outlet 2 Pullthe range away from the wall so you can access the back of the unit 6 Removethe electrical connections NOTE The terminals are different sizes to pre Gas Distribution Valve vent miswiring see page 4 Back of Range 12 SECTION 3 COMPONENT TESTING DIRECT SPARK IGNITION CONTROL A WARNING Electrical Shock Hazard Voltage is present during these tests TEST PROCEDURE Voltage Tests Bake Function 1 Set the voltmeter to read 120 VAC 2 Program the range for the Bake operation J1 Connector Bake Strip Circuit OVEN CONTROL ERC 3 Ifthe top burners spark proceed to step 4 Touch the test leads to the J1 connector at terminals 4 white and 10 black The AC voltmeter should indicate 120 VAC If not check for the proper voltage at the power supply outlet a
3. 28 WHIRLPOOL GAS RANGE DIRECT SPARK IGNITION SYSTEM JOB AID Part No 8177893 FORWARD This Job Aid Whirlpool Gas Range Direct Spark Ignition System Part No 8177893 provides the technician with information on the operation and service of the Direct Spark Ignition System It is to be used as a training Job Aid and Service Manual The Wiring Diagrams used in this Job Aid are typical and should be used for training purposes only Always use the Wiring Diagrams supplied with the product when servicing the unit GOALS AND OBJECTIVES The goal of this Job Aid is to provide detailed information that will enable the service technician to properly diagnose malfunctions and repair the Direct Spark Ignition System The objectives of this Job Aid are to Understand and follow proper safety precautions Successfully troubleshoot and diagnose malfunctions Successfully perform necessary repairs e Successfully return the Direct Spark Ignition System to the proper operational status WHIRLPOOL CORPORATION assumes no responsibility for any repair made on our products by anyone other than Authorized Factory Service Technicians Copyright 2000 Whirlpool Corporation Benton Harbor MI 49022 Table of Contents PAGE ES TONG sedi cca aaa ss T T A E A E A E 1 THEOIRY OF XOPERATIGON lens an aeo ord ts dab es 1 a ois kane Rot bua DR Med cue ean bip p Ma eed dut bnc ew ed S
4. no Il yes no Does the Bake burner establish a flame and then turn off no Is 120 VAC present from J1 4 to J1 6 yes 15 120 VAC present from J1 4 to J1 72 no Turn the ERC off Test the distribution valve for continuity at J1 1 and J1 2 then J1 2 and J1 3 Are both resistances 216 30 yes Connect a DC voltmeter to J1 1 and J1 2 Wait 40 seconds then start a Bake cycle 6 seconds later does the meter indicate 8 to 18 VDC no Does spark occur at the igniter yes Check the igniter for cracks in the ceramics If cracks are found replace the igniter Diagnose the Bake igniter wiring harness If okay replace the control The igniter position is out of tolerance for the proper ignition Replace the igniter and burner 24 BROIL yes Does the Broil cycle function properly Does the spark continue after a flame is present Replace the gas distribution valve yes lt no Check the igniter for continuity If not okay replace the igniter If the supply polarity is correct check the Broil ignition wire for a loose connection If okay replace the DSI control yes Diagnose the main wiring harness and or no the electronic oven control ERC Diagnose the ERC The DSI control will lockout
5. a 1 2 open end wrench and turn the orifice hood down snug onto the pin approximately 2 1 2 turns DO NOT OVERTIGHTEN THE ORIFICE The burner flame cannot be properly ad justed if this conversion is not made a Use an 8 mm socket and carefully re move the orifice spud from each of the Broil Burner four burners Orifice Orifice Hood Natural Gas Unit is manufactured for natural gas 5 L P Gas Turn down 2 1 2 turns in this direction b Install the four L P gas orifices in the burners 7 Reinstall the storage drawer and oven racks DIRECT SPARK IGNITION CONTROL The Direct Spark Ignition DSI Control inter faces with the Electronic Oven Control for the Bake Broil and Self Clean functions The DSI also interfaces with the four cooktop burner ig nition switches to provide ignition for the cooktop OO OO OOOO 109 76 4321 10 PIN CONNECTOR DIRECT SPARK J1 IGNITION CONTROL TOP BURNERS GND BAKE BROIL DIRECT SPARK IGNITION ELECTRONIC CONTROL Right Front Spark G Left Front Spark Output Right Rear Spark Output Left Rear Spark Output Chassis Ground Bake Burner Spark Output Broil Burner Spark Output The DSI control uses a self diagnostic test to verify that the oven ignition system is working properly It will also continually monitor the flame presence within the oven The DSI con trol operates on 102 to 132 VAC All input and output te
6. if a call for Bake amp Broil exists simultaneously Measure the resistance at the distribution valve If different than measured at the DSI control diagnose the wiring harness If resistances are the same as measured at the DSI control replace the valve If the voltage is higher than 18 VDC check the main wiring harness for bad connections If okay replace the distribution valve yes Does spark occur at the Bake igniter but not the Broil Replace the DSI control Yes no yes i Check the igniter for cracks in the ceramics If cracks are found replace the igniter Diagnose the Broil igniter wiring harness If okay replace the control HC yes Wait 40 seconds then start a Broil Does the Broil burner establish a flame and then turn off no Is 120 VAC present from J1 4 to J1 7 yes Is 120 VAC present from J1 4 to J1 67 no Turn the ERC off Test the distribution valve for continuity at J1 1 and J1 2 then J1 2 and J1 3 Are both resistances 216 Q 30 yes Connect a DC voltmeter to J1 3 and J1 2 cycle 6 seconds later does the meter indicate 8 to 18 VDC no Does spark occur at the igniter The igniter position is out of tolerance for the proper ignition Replace the igniter and burner 25
7. step 4 Touch the testleads to the J1 connector at terminals 4 white and 10 black The AC voltmeter should indicate 120 VAC If not check for the proper voltage at the power supply outlet and check the main wiring harness 10 black 4 white 5 Broi Touch the test leads to the J1 connector at terminals 4 white and 7 blue white The AC voltmeter should indicate 120 VAC If not check the electronic oven control for proper operation 4 white PT J1 7 10 Set the voltmeter to read between 8 18 volts DC Strip Circuit Li OVEN CONTROL ERC BROIL P2 2 RELAY BK P2 1 Je y 1 d 1 4 OVEN po TEMP i e SENSOR 1 1 5 BAKE Le RELAY 1 gt 15 BU DIRECT SPARK IGNITION CONTROL Touch the test leads to the J1 connector at terminals 2 orange and 3 blue The DC voltmeter should indicate between 8 and 18 volts DC If not replace the DSI con trol 2 3 blue 2 J1 Connell When power is applied to the range a safety delay of 40 seconds takes place before the direct spark ignition control becomes operational The opera tion will last for a period of 4 seconds and the direct spark ignition will again turn off see the Timing Chart for the oven burners on page 10 BROIL VALVE OR w OO OO OOOO 109 76 4321 10 PIN CONNEC
8. w IF EQUIPPED IF EQUIPPED NE Au Bas bends 9 La Ww w bacon BK 1 w E OVEN CONTROL l J BK P6 1 o e I pie Sa E JY DOOR y YY LIGHT SW ay TRANSFORMER V pa 1 0 P1 4 pU pr 1 1 A OVEN lt 0 P1 5 4 e TEMP Vo ai LATCH RELAY SENSOR 1080 W 72 F iata BU BU OR BK BROIL VALVE i P2 4 R al BAKE VALVE BK SURFACE BURNER T IGNITION SWITCHES BK R SEALED BURNER UNITS EQUIPPED WITH 4 IGNITORS OPEN BURNER UNITS WITH 2 IGNITORS NOTE Drawing shows door latch switch in the Cook position with oven door open oven Off and light On DIRECT SPARK J1 OO OO IGNITION CONTROL 109 76 4321 M MURDER E 10 PIN CONNECTOR BURNERS GND BAKE BROIL y y PART NO 8273173 19 STRIP CIRCUITS L1 OVEN CONTROL ERC N BROIL BK P2 1 4 Pil V BAKE VALVE P1 4 OVEN bud 5 SENSOR l QP1 5 BAKE R ea opt 1 RELAY dood 1 109 76 4321 10 CONNECTOR DIRECT SPARK GND BAKE BROIL IGNITION CONTROL BROIL BROIL VALVE L1 OVEN CONTROL ERC N P2 2 BU BU Y OR w P1 4 99 90 43 29 TEMP SENSOR NM le icd 10 PIN CONNECTOR V lt lt RELAY DIR
9. Across Each Solenoid Terminal 8 to 18 VDC NOTE Always check both solenoids If either solenoid is defective neither one will operate L P GAS CONVERSION The range is manufactured to use natural gas 4 To convert the bake burner To convert the range to use L P gas the fol a Open the oven door and remove the lowing steps are performed oven racks 1 Turn off the gas and electrical supplies to b Use a 1 2 open end wrench and turn the range the orifice hood down snug onto the pin 2 Remove the storage drawer from the approximately 2 1 2 turns DO NOT range OVERTIGHTEN THE ORIFICE The 3 Locate the gas distribution valve at the burner flame cannot be properly ad rear of the range To convert the gas justed if this conversion is not made distribution valve Pin Orifice Hood a Unscrew the conversion cap from the gas distribution valve Note the differ ence between the L P and natural gas ends of the cap Natural Gas Unit is manufactured for natural gas On L P Gas Turn down 2 1 2 turns in this direction Natural Gas b Install the conversion cap the gas distribution valve with the L P side fac ing up you will see L P stamped inside the cap as shown 5 To convert the cooktop burners 6 To convert the broil burner NOTE The L P orifices for the cooktop burn a Open the oven door and remove the ers are supplied in the literature pack inside oven racks oven b Use
10. ECT SPARK GND BAKE BROIL ae ee _ 1 IGNITION CONTROL BK L1 IGNITION SWITCH N DIRECT SPARK IGNITION CONTROL TOP BURNERS 109 76 4321 10 PIN CONNECTOR GND J1 20 CLEAN L1 W OVEN CONTROL 2 P6 3 TRANSFORMER EU T DOOR LATCH DRIVE LATCH SW Has Pie V Es LATCH BROIL VALVE SENSOR 1080 W Q 72 F 2 2 BU BU O O BK P2 1 J1 10 PIN CONNECTOR DIRECT SPARK GND BAKE BROIL IGNITION CONTROL Q 21 NOTES 22 SECTION 5 5 DIAGNOSTIC FLOW CHARTS NOTE The range must be plugged in for at least 40 seconds before this test can begin Does cooktop spark properly Check the high voltage igniter wires for continuity and proper connections from DSI control to igniters Make sure the burner caps are the correct size and are properly oriented Also if the supply voltage is less than 102 VAC the spark might not occur Diagnose the main wiring Is 120 VAC harness 120 VAC should present from J1 4 always be present at this point to J1 10 With the cooktop knob in LITE is 120 VAC present from J1 4 to J1 9 Diagnose the cooktop wiring harness Check the cooktop lt no switch
11. TOR J1 GND BAKE BROIL Cooktop Function 1 Setthe voltmeter to read 120 VAC J1 Connector 2 Turn one of the cooktop burner valves to the LITE position Cooktop Strip Circuit L1 IGNITION SWITCH Touch the testleads to the J1 connector at terminals 4 white and 10 black The AC voltmeter should indicate 120 VAC If not check for the proper voltage at the power supply outlet and check the main wiring harness 4 white 10 black 83 Touch the test leads to the J1 connector at terminals 4 white and 9 red The AC voltmeter should indicate 120 VAC If not check the ignition switch and the main wiring harness DIRECT 5 IGNITION CONTROL TOP BURNERS GND ii 16 ii GAS DISTRIBUTION VALVE TEST PROCEDURE Solenoid Resistance Tests 1 Disconnect power from the range 2 Setthe ohmmeter to the R x 100 scale 3 Touch the ohmmeter terminals to termi nals 1 and 2 Broil The ohmmeter should read 216 30 4 Touch the ohmmeter terminals to termi nals 3 and 2 Bake The ohmmeter should read 216 30 NOTE Always check both solenoids If one of the solenoids is defective neither one will operate 17 NOTES 18 SECTION 4 WIRING DIAGRAM STRIP CIRCUITS WIRING DIAGRAM O L1 ON o OVEN LT 7 w DOOR ROCKER SW LATCH SW A
12. after three igni tion attempts Time sec 0 0 5 1 0 15 2 0 25 3 0 3 5 Valve Aaa aaa Valve Charge Flame Sense C A flame is present within the oven for more than 10 seconds after the gas valve is off d The flame is unexpectedly lost for any reason after being established NOTE If this occurs a lockout condition will oc cur after 30 seconds with no attempt to reignite During the lockout the gas distribution valve and ignition are turned off All lockouts can be reset by pressing the OFF Cancel keypad on the Electronic Oven Control NOTE There will be no indication on the electronic oven control display showing a lockout condition Note To Technician The cooktop spark op erates normally even when the oven is in the lockout mode If the oven does not appear to work at all verify the operation of the cooktop spark If the cooktop spark is working correctly the DSI control is most likely okay and the problem is somewhere else in the range Timing Chart Oven Burners Timing Sequence 4 Seconds 3 Attempts Before Lockout Top Spark X8 cas ccucn Mg RR dd A Valve Open Timing Chart Cooktop Burners 10 SECTION 2 COMPONENT ACCESS This section instructs you on how to service the direct spark ignition system components inside the Gas Range REMOVING THE DIRECT SPARK IGNITION CONTROL Disconnect the wire connectors from the direct sp
13. ark ignition control ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range Replace all panels before operating range Failure to do so can result in death or electri cal shock FIRE HAZARD Shut off gas supply line valve before servic ing the range Check all gas line connections and replace 5 all panels before operating the range 6 Failure to do so could result in explosion fire or other injury CAUTION When you work on the gas range be careful when handling the sheet metal parts Sharp edges may be present and you can cut yourself if you are not careful 1 Turn off the gas to the range and discon nect the power cord from the wall outlet 2 Pullthe range away from the wall so you can access the back of the unit 3 Remove the top rear cover 4 screws Screw ws 4 Top Rear Cover 11 4 Remove the mounting screws Slide the two top pins out of the bracket slots and remove the control from the bracket Board Pin In Slot REMOVING THE GAS DISTRIBUTION VALVE 3 Remove the gas outlet lines from the gas AW A R N e distribution valve with a 9 16 open end wrench ELECTRICAL SHOCK HAZARD 4 Remove the four mounting screws from Disconnect power before servicing the range the gas distribution valve Replace all panels before operating range Gas Outlet Strewe Failure to do so can result in death or electri cal shock la
14. es for the proper function Replace the DSI control 23 yes Does the Bake cycle function properly no Replace the gas distribution valve no Check the igniter for continuity If not okay replace the igniter If the supply polarity is correct check the Bake ignition wire for a loose connection If okay replace the DSI control yes Check the polarity of the supply voltage Even if no ground is connected the DSI control will not be able to sense the presence of a flame at the igniter if the polarity is reversed Does the spark continue after a flame is present Diagnose the main the electronic oven control ERC Diagnose the ERC The DSI control will lockout if a call for Bake amp Broil exists simultaneously the distribution valve If different than measured at the DSI control diagnose the wiring harness If resistances are the same as measured at the DSI control Measure the resistance at replace the valve If the voltage is higher than 18 VDC check the main wiring harness for bad connections lt yes If okay replace the distribution valve Replace the DSI control yes Does spark occur at the Broil igniter but not the Bake yes wiring harness and or
15. et iU s en er 1 Gas Distribution Valves aiat D TR ER DELE NEUE CREME EVE UTR 2 Manual Oven Shutoff Valve uis nd IE ERE E PIN es Mala 3 Bake amp Broil Solenoid Activated Ports eeeesssssssssesseseeeeeeeeeeeneeners 4 Conversion E NE M 5 Direct Spark Ignition cen eo 7 Electronic Spark IGDIDIOD od henley ahh ca 8 Cooktop Burner ODerallOrs RE E aaa NT 8 Over Burner hasta deine iter adde 9 lt P 11 COMPONENT AG CES Gann tbe e voit pali e ERAN ee Pete uie 11 Removing The Direct Spark Ignition 2 11 Removing The Gas Distribution 12 Mycexgrec T 13 COMPONENT TES THING yp aci resp nace DRE Ede 13 Direct Spark Ignition Control Impe LU MR pnt te s ten eee MERE TUE ext 13 3as DISIFIDUUOB one DEDE cake OE ENDE 17 qu A 19 WIRING DIAGRAM amp STRIPAGIRGULTS
16. ion of the Direct Spark Ignition DSI System The requirements are 102 to 132 VAC with the proper polarity and ground If the electrical sup ply is less than 102 VAC sparking will not be reliable If the system is over 132 VAC per manent damage to the DSI can occur Proper polarity must also be supplied If the supply polarity is reversed the DSI control will not be able to detect the presence of a flame Reverse polarity will not affect the cooktop op eration but the Bake and Broil burners will fail to remain lit A proper ground is also required The DSI con trol generates a significant amount of electri cal noise This noise is minimized by clamp ing the noise to ground If a proper ground is not connected the ERC may periodically dis play PF which means that a reset has oc curred in the ERC GAS REQUIREMENTS Gas supply pressure should be a minimum of 7 water column pressure for natural gas and 11 water column pressure for L P gas How ever the gas distribution valve should main tain 4 water column pressure for natural gas and 10 water column pressure for L P gas NOTE TO TECHNICIAN Improper polar ity will cause the direct spark ignition system to malfunction Always check for proper polarity at the wall outlet before replacing parts SECTION 1 THEORY OF OPERATION INTRODUCTION The Direct Spark Ignition System contains a Gas Distribution Valve and a Direct Spark Ig niti
17. nd check the main wiring harness 4 white 10 10 NN M J1 Connector Iw vey 4 Touchthe test leads to the J1 connector at terminals 4 white and 6 red white The AC voltmeter should indicate 120 VAC If not check the electronic oven control for proper operation 4 white 6 red white E N i JI Connector a L1 BROIL 2 1 4 EPA Vic BAKE VALVE 2 1 4 lua R SENSOR es P1 5 e L2 OR w PENES al on BK bo 55 1 109 76 4321 10 PIN CONNECTOR DIRECT SPARK GND BAKE BROIL IGNITION CONTROL 13 Set the voltmeter to read between 8 and 18 volts DC Touch the test leads to the J1 connector at terminals 1 red and 2 orange The DC voltmeter should indicate between 8 and 18 volts DC If not replace the DSI con trol 1 2 orange When power is applied to the range a safety delay of 40 seconds takes place before the direct spark ignition control becomes operational The opera tion will last for a period of 4 seconds and the direct spark ignition will again turn off see the Timing Chart for the oven burners on page 10 Broil Function Set the voltmeter to read 120 VAC Program the range for the Broil operation J1 Connector T 2 14 Ifthe top burners spark proceed to
18. on DSI Control that interfaces with the Electronic Oven Control and spark electrodes This provides the direct spark ignition and gas distribution for Whirlpool self cleaning gas free standing ranges A proper ground and the correct polarity is nec essary for the DSI control to sense the pres ence of a flame If the polarity is reversed or in some cases if there is a poor ground the control will appear to operate normally How ever after an oven burner ignites the spark will continue to occur at the burner and the valve will then shut off after 4 seconds This is because the DSI control does not recognize the presence of a flame when one is present see Monitoring System on page 9 Direct Spark Ignition Control m e Gas Distribution Valve Gas Valve 3 2 Ignitor amp Y Cooktop Burner Ignition Switch 5 E Broil Burner Ignitor Broil Burner Bake Burner Ignitor Bake Burner GAS DISTRIBUTION VALVE The gas distribution valve can be converted to The gas distribution valve is made up of the L P gas when necessary It regulates the dis following features tribution of gas to the cooktop and both oven Natural amp L P gas regulator burners The gas distribution valve is non ser e Manual oven shutoff valve viceable Bake amp broil solenoids Pressure tap To measure gas outlet p
19. ressure Pressure Tap 1 8 27 L P Conversion Cap Gas Inlet 1 27 Female Threads Manual Oven Electrical Shutoff Valve Terminals To Broil Burner To Cooktop Gas Distribution Valve MANUAL OVEN SHUTOFF VALVE When the lever is raised the gas to the oven A manual oven shutoff valve is available on burners is turned on the gas distribution valve to shut off the gas to the oven burners This valve will not affect the operation of the cooktop burners When the lever is down the gas to the oven burners is turned off Manual Valve Lever Raised Gas On Manual Valve Lever Down Gas Off BAKE BROIL SOLENOID ACTIVATED PORTS The bake and broil gas supply ports are opened and closed by electrically operated solenoids When voltage is received from the spark ignition control for the bake or broil function 8 18 VDC the solenoid for that function is activated and the valve opens to allow gas Electrical Terminals Broil 1 8 wide Common 1 4 wide Bake 3 16 wide flow to the burner The electrical connections at the valve consist of three terminals each one sized differently to prevent incorrect wir ing see below The solenoids require special voltage current 8 18 VDC from the direct spark ignition con trol to operate properly IMPORTANT Do not attempt to operate the solenoids with any other voltage supply Manual Oven Shutoff Valve 216 Resistance
20. sting is performed at the J1 connec tor see below J1 Bake Valve Output gt L1 1 Valve Common 12 Broil Valve Output 0 3 Neutral gt L1 4 Bake Input 3 O 6 Broil 7 Input 3 LH 9 L1 gt O10 ELECTRONIC SPARK IGNITION COOKTOP BURNER OPERATION The top burner spark ignition system is initi ated when the burner control is turned to the LITE position 120 VAC is supplied through the ignition switch from the L1 side of the circuit to the direct spark ignition control at input J1 9 on the control The circuit is completed through output pin J1 4 to the neutral side of the circuit acm e ey Cooktop Strip Circuit 11 IGNITION SWITCH This 120 VAC is detected by the control and generates two sparks per second to all of the top burners Note that in the strip circuit be low 120 VAC is present at the control at all times through input pin J1 10 and output pin J1 4 120 VAC is required to a Monitor the internal self diagnostics of the control board b Monitor the flame safety circuits to both of the oven burners NOTE The top burners are operator moni tored and do not require electronic monitor ing TOP BURNERS GND DIRECT SPARK IGNITION CONTROL J1 10 PIN CONNECTOR m OVEN BURNER OPERATION The spark ignition for the oven burners is started at the Electronic Oven Con
21. trol ERC As the ERC is programmed for Bake or Broil the appropriate relay is closed on the ERC 120 VAC is provided from L1 through the ERC relay s to the direct spark ignition control at input pin J1 6 Bake or J1 7 Broil to the neutral side of the circuit through output pin J1 4 This 120 VAC is used to generate two sparks per second to both oven burners The 120 volts AC is also stepped down to between 8 and 18 VDC through pins J1 1 and J1 2 Bake and pins J1 3 and J1 2 Broil This DC voltage opens the gas distribution valve and provides gas to the appropriate oven burner L1 OVEN CONTROL ERC N BROL BK po4 RELAY 1 2 y BAKE VALVE VI d 1 4 SENSOR DEP 1 24 R R lt 1 5 BAKE On Meee n REL w EEN lary he BK 41 109 76 4321 10 CONNECTOR DIRECT SPARK IGNITION CONTROL GND BAKE BROIL Bake Operation H BROIL VALVE L1 OVEN CONTROL ERC N BROIL P2 2 BU BU RELAY 4 9 71 oH BK P2 1 de V Fu Kiq OOOO i Ji 109 76 4321 SENSOR 10 y 4X L 4 1 5 BAKE DIRECT SPARK ben 1 RELAY IGNITION CONTROL GND BAKE BROIL L2 Broil Operation Monitoring System When power is applied to the range a safet
22. y delay of 40 seconds takes place before the direct spark ignition control becomes opera tional The 40 second delay allows any unused gas inside the oven cavity to dissipate before a spark is activated When the Bake or Broil operation is activated the direct spark ignition control initiates an internal self test and flame safety check The flame safety check takes place anytime there is a flame present at ei ther oven burner The self test checks both solenoids on the gas distribution valve to verify that they are prop erly connected If they are not the control will turn the oven off or lock it out If the test is successful the control will then open the ap propriate valve and initiate sparking at the burner ignitor Both the bake and broil ignitors spark simultaneously Sparking will not occur until the gas distribution valve opens Once the gas has ignited the flame safety circuit will monitor the flame at the burner to make sure it is present If a flame is not present at the burner a The control will allow the ignitor to spark for 4 seconds b A 40 second delay to dissipate any un used gas inside the oven will occur The ignition attempt will occur three times If the burner does not ignite after the three at tempts the system will lockout see the Tim ing Chart below Lockout The control will perform an oven system lock out if a Any of the self test checks fail b The oven fails to ignite
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