Instruction/ maintenance manual of the product KR-28 Whirlpool
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JOB AID Part No. 8177893 WHIRLPOOL GAS RANGE DIRECT SP ARK IGNITION SYSTEM KR-28.
- ii - WHIRLPOOL CORPORA TION assumes no responsibility for any repair made on our products by anyone other than Authorized Factory Service T echnicians. Copyright 2000, Whirlpool Corporation, Benton Harbor , MI 49022 FOR W ARD This Job Aid, “Whirlpool Gas Range Direct Spark Ignition System,” (Part No.
- iii - T able of Contents SECTION 1 ................................................................................................................................ 1 THEORY OF OPERATION ...............................................................
- iv - IMPORT ANT SAFETY INFORMA TION Y our 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.
- 1 - SECTION 1 SECTION 1 SECTION 1 SECTION 1 SECTION 1 THEOR Y OF OPERA TION The Direct Spark Ignition System contains a Gas Distribution V alve and a Direct Spark Ig- nition (DSI) Control that interfaces with the Electronic Oven Control, and spark electrodes.
- 2 - Gas Distribution Valve The gas distribution valve can be converted to L.P . gas, when necessary . It regulates the dis- tribution of gas to the cooktop and both oven burners. The gas distribution valve is non-ser- viceable. GAS DISTRIBUTION V AL VE The gas distribution valve is made up of the following features: • Natural & L.
- 3 - When the lever is raised, the gas to the oven burners is turned on. Manual Valve Lever Down (Gas Off) Manual Valve Lever Raised (Gas On) MANUAL OVEN SHUTOFF V AL VE A manual oven shutoff valve is available on the gas distribution valve to shut off the gas to the oven burners.
- 4 - BAKE & BROIL SOLENOID- ACTIV A TED 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 flow to the burner .
- 5 - b) Install the conversion cap on the gas distribution valve with the L.P . side fac- ing up (you will see L.P . stamped inside the cap, as shown). L.P. Gas The range is manufactured to use natural gas. T o convert the range to use L.P . gas, the fol- lowing steps are performed: 1.
- 6 - 6. To convert the broil burner: a) Open the oven door and remove the oven racks. b) Use a 1/2" open-end wrench and turn the orifice hood down snug onto the pin (approximately 2-1/2 turns). DO NOT OVER TIGHTEN THE ORIFICE. The burner flame cannot be properly ad- justed if this conversion is not made.
- 7 - 64 3 2 1 7 9 10 10-PIN CONNECT OR GND BAKE BROIL T OP BURNERS J1 DIRECT SP ARK IGNITION CONTROL DIRECT SP ARK IGNITION CONTROL The Direct Spark Ignition (DSI) Control inter- faces with the Electronic Oven Control for the Bake, Broil, and Self-Clean functions.
- 8 - L1 N BK BK R W IGNITION SWITCH DIRECT SPARK IGNITION CONTROL 64 3 2 1 7 9 10 T OP BURNERS GND 10-PIN CONNECT OR J1 This 120 V AC is detected by the control, and generates two sparks-per-second to all of the top burners.
- 9 - OVEN BURNER OPERA TION The spark ignition for the oven burners is started at the Electronic Oven Control (ERC). As the ERC is programmed for Bake or Broil, the appropriate relay is closed on the ERC.
- 10 - 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 .
- 11 - 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. REMOVING THE DIRECT SP ARK IGNITION CONTROL CAUTION: When you work on the gas range, be careful when handling the sheet metal parts.
- 12 - 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. REMOVING THE GAS DISTRIBUTION V AL VE CAUTION: When you work on the gas range, be careful when handling the sheet metal parts.
- 13 - DIRECT SP ARK IGNITION CONTROL Electrical Shock Hazard Voltage is present during these tests. WARNING COMPONENT TESTING SECTION 3 SECTION 3 SECTION 3 SECTION 3 SECTION 3 TEST PROCEDURE V oltage T ests Bake Function 1. Set the voltmeter to read 120 VAC.
- 14 - 4 (white) 10 (black) J1 Connector Broil Function 1. Set the voltmeter to read 120 VAC. 2. Program the range for the Broil operation. 3. If the top burners spark, proceed to step 4. Touch the test leads to the J1 connector at terminals 4 (white) and 10 (black).
- 15 - 4 (white) 7 (blue/white) J1 Connector * 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).
- 16 - 2. Turn one of the cooktop burner valves to the LITE position. 4. 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.
- 17 - GAS DISTRIBUTION V AL VE TEST PROCEDURE Solenoid Resistance T ests 1. Disconnect power from the range. 2. Set the ohmmeter to the R x 100 scale. 3. Touch the ohmmeter terminals to termi- nals 1 and 2 (Broil). The ohmmeter should read 216 Ω ± 30.
- 18 - — NOTES —.
- 19 - L1 BK P1-3 P1-1 P2-2 P1-2 DOOR LA TCH SW . (IF EQUIPPED) GND OVEN L T . P1-4 P1-5 DOOR LIGHT SW. OVEN CONTROL N N/C BR P2-4 P2-1 ROCKER SW. (IF EQUIPPED) P6-4 P6-3 N/O OR OR BK V V TRANSFORMER BU GY BU W R W W W W W W BK BK Y Y GY BK BK R R BU P6-1 MOT 64 3 2 1 7 9 10 OVEN TEMP SENSOR P AR T NO .
- 20 - BAKE BROIL COOKT OP STRIP CIRCUITS N L1 BK BK P1-4 P1-5 O VEN TEMP SENSOR V V P2-4 R BAKE V AL VE W OR R P2-1 OVEN CONTROL (ERC) BRO IL RELA Y BAKE RELA Y J1 64 3 2 1 7 9 10 10-PIN CONNECTOR GN.
- 21 - CLEAN BRO IL RELA Y BAKE RELA Y O VEN CONTROL N L1 P1-3 P1-1 P2-2 P1-2 LA TCH DRIVE P1-4 P1-5 DOOR SWITCH BR P2-4 P2-1 P6-4 P6-3 N/O BK V V TRANSFORMER BU GY BU W OR OR R W LA TCH RELA Y Y Y GY.
- 22 - — NOTES —.
- 23 - SECTION 5 SECTION 5 SECTION 5 SECTION 5 SECTION 5 DIAGNOSTIC FLOW CHARTS TECH TIPS COOKT OP Star t Done Does cooktop spark proper ly? Is 120 V A C present from J1-4 to J1-10? Check the high v oltage igniter wires f or continuity and proper connections from DSI control to igniters.
- 24 - BAKE Done Does the Bake cycle function properly? Does the spark continue after a flame is present? Does the Bake burner establish a flame and then turn off? Is 120 V A C present from J1-4 to J1-6? Is 120 V A C present from J1-4 to J1-7? T urn the ERC off.
- 25 - BROIL Done Does the Broil cycle function properly? Does the spark continue after a flame is present? Does the Broil burner establish a flame and then turn off? Is 120 V A C present from J1-4 to J1-7? Is 120 V A C present from J1-4 to J1-6? Connect a DC voltmeter to J1-3 (+) and J1-2 ( – ).
An important point after buying a device Whirlpool KR-28 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Whirlpool KR-28 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Whirlpool KR-28 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Whirlpool KR-28 you will learn all the available features of the product, as well as information on its operation. The information that you get Whirlpool KR-28 will certainly help you make a decision on the purchase.
If you already are a holder of Whirlpool KR-28, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Whirlpool KR-28.
However, one of the most important roles played by the user manual is to help in solving problems with Whirlpool KR-28. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Whirlpool KR-28 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
