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24

Test 6

Heater switch test - Electric Type

Disconnect the YL3, black tab
relay and white tab relay
connectors at the main PCB.
Measure the resistance between
YL3-1 (WH) and the YL wire on
the black tab relay connector. Is
the resistance 18-22

Ω

?

Measure the resistance between
YL3-1 (WH) and the BL wire on
the white tab relay connector. Is
the resistance 18-22

Ω

?

•Check wiring and

connectors to the
element.

•See element

component test.

•Check wiring and

connectors to the
element.

•See element

component test.

•Check wiring and

connectors to the
element.

•See element

component test.

•Check power

supply.

•Replace the

element.

Measure the resistance between
the YL wire on the black tab relay
and the BL wire on the white tab
relay connectors. Is the
resistance 36-44

Ω

?

Measure the resistance between
terminals 1 (RD) and the heater
housing. Is the resistance

Ω

?

Refer to the hi-limit thermostat and thermal cut

off component tests.

Enter diagnostic mode and press
the START/PAUSE button twice.
Measure the voltage between
YL3-1(WH) and the YL wire on
the black tab relay. Is the
voltage 240 VAC?

YL3

YES

YES

YES

YES

YES

NO

NO

NO

NO

NO

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Содержание 796.8002.900

Страница 1: ...ER SERVICE MANUAL CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLES CORRECTLY BEFORE OFFERING SERVICE MODEL 796 8002 900 796 8027 900 796 8031 900 796 9002 900 796 9027 900 796 9031 900 Website http www sears com ...

Страница 2: ...AUG 2009 PRINTED IN KOREA P No MFL62119905 ...

Страница 3: ...ms are present everywhere ESD may damage or weaken the electronic control assembly The new control assembly may appear to work well after repair is finished but failure may occur at a later date due to ESD stress Use an anti static wrist strap Connect wrist strap to green ground connection point or unpainted metal in the appliance OR Touch your finger repeatedly to a green ground connection point ...

Страница 4: ...PPLY 17 9 2 TEST 2 THERMISTOR TEST MEASURE WITH POWER OFF 20 9 3 TEST 3 MOTOR TEST 21 9 4 TEST 4 MOISTURE SENSOR 22 9 5 TEST 5 DOOR SWITCH TEST 23 9 6 TEST 6 HEATER SWITCH TEST ELECTRIC TYPE 24 9 7 TEST 7 GAS VALVE TEST GAS TYPE 25 10 CHANGE GAS SETTING NATURAL GAS PROPANE GAS 26 11 DISASSEMBLY INSTRUCTIONS 28 12 EXPLODED VIEW 35 12 1 CONTROL PANEL PLATE ASSEMBLY 35 12 2 CABINET DOOR ASSEMBLY 36 1...

Страница 5: ...trols No of Dry Levels Audible End of Cycle Beeper Moisture Temperature Reversible Door Drum Dryer Rack Child lock Interior Light Product WXHXD Packing WXHXD Sensor POWER SUPPLY Material Finish Light Gray 120V 240V 60Hz 26A 250W 4 5A 5400W 22 5A 15W 125mA 13W 110mA X 2 Electronic 7 1 cu ft 126 144 9 5 5 5 High Low Off Equipped Equipped Adopted Double Coated Steel Equipped Equipped Equipped 27 x 38...

Страница 6: ...2 FEATURES AND BENEFITS 5 Apply Model 796 8002 900 796 8027 900 796 8031 900 Apply Model 796 9002 900 796 9027 900 796 9031 900 ...

Страница 7: ...over into slot of dryer rear panel Secure cover with hold down screw 3 Connect ground wire green or bare of power supply cable to external ground conductor screw Tighten screw 4 Connect neutral wire white or center wire of power supply cord to the center silver colored terminal screw of the terminal block 1 4 wire receptacle NEMA type 14 30R 2 4 prong plug 3 Ground prong 4 Neutral prong 5 Spade te...

Страница 8: ...ector 2 Neutral grounding wire green 3 Center silver colored terminal block screw 4 Neutral wire white or center wire 5 3 4 in 1 9 cm UL listed strain relief 3 Connect the other wires to outer terminal block screws Tighten screws 4 Tighten strain relief screws 5 Insert tab of terminal block cover into slot of dryer rear panel Secure cover with hold down screw 4 Tighten strain relief screws 5 Inser...

Страница 9: ...tor 4 Tighten all connections securely Turn on gas and check all pipe connections internal external for gas leaks with a non corrosive leak detection fluid 5 For L P Liquefied Petroleum gas connection refer to section on Gas Requirements For further assistance refer to section on Gas Requirements 1 New Stainless Steel Flexible Connector Use only if allowed by local codes Use Design A G A Certified...

Страница 10: ...SS 9 Sensor dry Dry Level is set by users Manual dry Temperature control is set by users Default settings can be adjusted by users Apply Model 796 8002 900 796 8027 900 796 8031 900 796 9002 900 796 9027 900 796 9031 900 ...

Страница 11: ... Heater case Hi limit Electric type 3 Outlet Thermostat Auto reset Check Top Marking N85 Measure resistance of terminal to terminal Open at 185 9 F 85 5 C Close at 149 9 F 65 5 C Same shape as Thermal cut off Resistance value Resistance value 5Ω Blow housing Safety Electric type 4 Lamp holder Measure resistance of terminal to terminal Resistance value 80Ω 100Ω 6 Idler switch Measure resistance of ...

Страница 12: ... 58 F 10 40 C 58 F 104F 10 40 C Resistance value 10Ω Heater case Hi limit Electric type 9 Motor See Page 13 10 Gas valve valve 1 valve 2 Measure resistance of the following terminal Valve 1 terminal Valve 2 terminal Resistance value 1 5kg Resistance value 1 5 2 5kg Gas type 11 Igniter Measure resistance of terminal to terminal Resistance value 100 800Ω Gas type 12 Frame Detect Measure resistance o...

Страница 13: ...nal Open at 203 7 F 95 5 C Close at 158 9 F 70 5 C Resistance value Continuity 1Ω Gas type Gas funnel Hi limit 13 Thermal Cut off Manual reset Check Top Marking N110 Measure resistance of terminal to terminal Open at 230 12 F 110 7 C Manual reset If thermal fuse is open must be replaced Resistance value Continuity 1Ω Gas type Gas funnel Safety ...

Страница 14: ... On Off by Centrifugal Switch STOP MODE When Motor does not operate RUN MODE Motor operates When checking Component be sure to turn Power off then do voltage discharge sufficiently NOTE Centrifugal switch Centrifugal switch Pull Drive forward ...

Страница 15: ...7 CONROL LAY OUT 14 PWB ASSEMBLY DISPLAY LAY OUT PWB ASSEMBLY LAY OUT ...

Страница 16: ...IAGRAM A Apply Model 796 8002 900 796 8027 900 796 8031 900 Apply Model 796 9002 900 796 9027 900 796 9031 900 Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangrous operation Verify proper operation after servicing ...

Страница 17: ...s 4 times 5 times During check If the door is open During check If the door is closed Electric control Temperature sensor Motor 70 255 Measured Moisture Value Current Temp 70 255 50 255 Measured SE Error Display dE or Error THE DOOR IS OPEN PLEASE CLOSE THE DOOR COMPLETELY Current Temp 5 70 ELECTRIC TYPE Motor Heater 1 2700W GAS TYPE Motor Valve Motor Heater Control Off Door switch Lamp Press Star...

Страница 18: ...on With the dryer plugged in check the voltage at the power cord plug between the neutral and L1 and L2 for electric dryers Is the voltage 120 VAC while pressing the START PAUSE button Replace main PCB Replace display PCB Check power cord Check terminal block connection s Check the power supply fuse or circuit breaker Check the receptacle connections YES YES NO NO NO YES YES NOTE To properly check...

Страница 19: ...7 4 C Turn on Burner Temperature Control below 52 4 C Only Turn on Heater1 on on O O O O on off off on on on Low Extra Low PCB ASSEMBLY LAYOUT Low Extra Low T a R Connector Housing Black Check the Matching color Between Harness wire and Tab Relay Black Housing Black Tab Relay Check the Matching color Between Harness wire and Tab Relay White Housing White Tab Relay White Color Table1 Connection of ...

Страница 20: ...on White PCB condition Of operation In case of power failure Table1 1 2 5 Table2 1 Please check the Connection of 2 Status Table of Connection In case of power failure Table1 4 please check the Connection of 2 Status Table of Connection Because improper Connection of the equipment dryer can be damaged of changing heater CAUTION Connector Housing Black Check the Matching color Between Harness wire ...

Страница 21: ...wires etc Check all harness wires for cuts or broken wires Measure the resistance between the NA6 1 RD and NA6 4 BL Does the resistance measured match the temperature of the thermistor in the chart Use room temperature unless the thermistor is warm from running the dryer Disconnect the NA6 connector from the main PCB Measure the resistance between the NA6 6 GN pin and a chassis ground screw Is the...

Страница 22: ...to MOTOR DIAGRAM AND SCHEMATIC Check if control connector is plugged in YES YES NO Recheck voltage at main PCB and replace if no voltage With the connectors disconnected check the resistance between BL2 1 BN and BL3 3 YL Is the resistance 2 4 Ω Measure with the door closed YES NO With the connectors disconnected check the resistance between WH1 1 WH and BL3 2 BN Is the resistance 2 4 Ω Measure wit...

Страница 23: ...e lint filter housing inside the drum Is the resistance 1 Ω Check all connections and wires between the NA6 terminal at the main PCB and the sensor bars Check the resistance is 0Ω Measure the resistance of all wires Resistance should be 1 Ω Check all sensor harness connectors for corrosion loose bent pins broken wires etc Check all harness wires between the main PCB and the sensor for cuts or brok...

Страница 24: ...sed and Ω with the door open Skip this step if the dryer does not have a drum light Disconnect the BL3 and the black tab relay connectors from the main PCB Measure the resistance between BL3 3 YL and the BK wire on the black tab relay connector Is the resistance 1 Ω with the door opened and Ω with the door closed Refer to the individual door switch and light bulb socket component tests Replace the...

Страница 25: ...rs to the element See element component test Check wiring and connectors to the element See element component test Check power supply Replace the element Measure the resistance between the YL wire on the black tab relay and the BL wire on the white tab relay connectors Is the resistance 36 44 Ω Measure the resistance between terminals 1 RD and the heater housing Is the resistance Ω Refer to the hi...

Страница 26: ... and BL3 2 PK Is the resistance 1 5k 2 5k Ω Measure the resistance between BL3 1 RD and BL3 3 WH Is the resistance 1 5k 2 5k Ω Disconnect the YL3 connector from the main PCB Measure the resistance between YL3 1 GY and YL3 3 BL Is the resistance 1 Ω The flame sensor is closed and the ignitor is OK Perform the functional test above Check all wiring and connectors to gas valve components Check gas su...

Страница 27: ... to authorized servicers only CHANGE GAS SETTING NATURAL GAS PROPANE GAS 10 Warning STEP 1 VALVE SETTING Full open Change screw STEP 2 ORIFICE CHANGE Orifice Gas type Natural Gas Propane Gas Marking NCU PCU Shape Orifice P No 4948EL4001B 4948EL4002B Close Change screw Remove 2 screws Disassemble the pipe assembly Replace Natural Gas orifice with Propane Gas orifice Kit contents Orifice Dia 1 613mm...

Страница 28: ...E 1 ON VALVE 2 OFF IGNITER ON IGNITER TEMPERATURE ABOUT 2499 F 1343 C FLAME DETECT OPEN IGNITER OFF 374 C 190 C VALVE 2 ON GAS IGNITION DRYING VALVE 2 OFF FLAME DETECT CLOSE NO NO YES YES START ON ON ON GAS IGNITION CLOSE OPEN OFF OFF VALVE 1 IGNITER VALVE 2 FLAME DETECT ...

Страница 29: ...ING When you disassemble the control panel besure to take gloves and careful panel frame s edge Failure to do so can cause serious injury 1 Remove 3 screws on the upper plate 2 Push the top plate back ward 3 Lift the top plate TOP PLATE ...

Страница 30: ... panel assembly upward and then forward 4 Remove 9 screws on the PWB PCB assembly display 5 Remove 4 screws on the PWB PCB assembly main 6 Disassemble the control panel assembly WARNING When you disassemble the control panel besure to take gloves and careful panel frame s edge Failure to do so can cause serious injury ...

Страница 31: ...BINET 1 Disassemble the top plate 2 Disassemble the control panel assembly 3 Disassemble the door assembly 4 Remove 2 screws 5 Remove 4 screws from the top of cabinet cover 6 Disconnect the harness of door switch ...

Страница 32: ...and idler pulleys 4 Carefully remove Drum out through front of dryer DRUM ASSEMBLY 1 2 1 1 Open the door 2 Remove the screw holding the drum lamp shield in place 3 Slide the shield up and remove 4 Remove the bulb and replace with a 15 watt 120 volt candelabra base bulb 5 Replace the lamp shield and screw CHANGING THE DRUM LAMP When you disassemble the lamp connector be sure to take gloves and care...

Страница 33: ...2 Detach and remove the bottom left or right side knockout as desired 4 Pre assemble 4 elbow with 4 duct Wrap duct tape around joint 5 Insert duct assembly elbow first through the side opening and connect the elbow to the dryer internal duct When you disassemble and install ventilation be sure to take gloves and careful exhaust edge Failure to do so can cause serious injury WARNING ...

Страница 34: ...t and Tub Drum Front 3 Remove the Drum assembly 4 Remove 2 screws and cover Air guide 5 Remove the bolt and washer 6 Pull the fan 7 Disconnect the motor clamp and motor BLOWER HOUSING 1 Open the top plate 2 Remove the Cover Cabinet and Tub Drum Front 3 Remove the Drum assembly 4 Remove 7 screws 5 Pull the Tub Drum Rear towards the front BACK COVER ...

Страница 35: ...ews 4 Pull the air duct towards the front AIR DUCT 1 Open the top plate 2 Remove the Cover Cabinet and Tub Drum Front 3 Remove the Drum assembly and Tub Drum Rear 4 Disconnect Air duct from the Tub Drum Front 5 Remove the roller from the Tub Drum Front and Tub Drum Rear ROLLERS ...

Страница 36: ...35 12 1 Control Panel Plate Assembly A210 A211 A130 A110 A120 A140 12 EXPLODED VIEW ...

Страница 37: ...52 13 3 2 Cabinet Door Assembly Gas type A390 A310 A330 A320 A530 A525 A540 A520 A600 A510 A500 A131 A300 A800 A450 A410 A430 A460 A400 A420 A550 A305 ...

Страница 38: ...00 K130 K222 K221 K350 K240 M160 M171 M170 M140 K210 K540 K230 K510 K520 K251 K360 K251 K250 K530 K600 K650 M141 M110 M250 M230 M190 M181 M150 M240 M220 K640 K560 K620 K140 K250 K550 K610 K651 M210 M180 K330 K310 K320 K340 K400 F200 K515 K655 K224 ...

Страница 39: ...m Motor Assembly Electric Type K640 K120 K140 K400 F200 K310 K610 K620 K330 K340 K130 K100 K221 K222 K230 K210 K350 K240 F130 F110 F140 K510 K540 K650 K651 K600 K530 K520 K550 K360 K560 K320 K250 K251 K250 F120 K251 ...

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