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505033

41

Section 5 Service Procedures

To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

44. FRONT BULKHEAD ASSEMBLY

a. While supporting the access panel, remove two

screws from bottom edge of access panel. See
Figure 6.

b. Gently lower the access panel to disengage

locators from bottom edge of front panel. See
Figure 13.

c. Remove two screws holding bottom tabs on

front panel to dryer side panels. See Figure 13.
Swing bottom of front panel away from dryer
far enough to disengage hold-down clips and
locators from cabinet top.

d. Disconnect wires from door switch. See

NOTE: Refer to wiring diagram when rewiring
switch.

e. Disengage belt from motor and idler pulley. See

f. Remove four screws holding bulkhead to front

flange of cabinet and lift complete bulkhead
assembly out of slots in cabinet. See Figure 27.

Figure 27

CABINET TOP

HOLD-DOWN

SCREW

CABINET TOP

HOLD-DOWN

SCREW

BULKHEAD

ATTACHING

SCREWS

CABINET

ATTACHING

SCREW

CABINET

ATTACHING

SCREW

AIR DUCT

ATTACHING

SCREWS

AIR

DUCT

BULKHEAD

ATTACHING

SCREWS

SLOT

SLOT

FRONT

BULKHEAD

D297SE1A

Figure 28

To reduce the risk of serious injury or death
by carbon monoxide and other gases in gas
dryers, carefully read and follow all
instructions given in this section.

W005

WARNING

FRONT

BULKHEAD

LINT

FILTER

UPPER

AIR DUCT

D254SE1B

(COMMERCIAL

LINT FILTER

NOT SHOWN.)

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Содержание LEB07A*-1709

Страница 1: ...Service D281P Dryers Nonmetered See Page 5 for Model Numbers Part No 505033R1 December 1998...

Страница 2: ...nition Control Flashes 15 Section 4 Grounding 17 16 Ground Wires From Terminal Block To Rear Bulkhead And From Rear Bulkhead To Cabinet Top And Control Panel 17 17 Ground Wires From Rear Bulkhead To C...

Страница 3: ...Ignition 66 62 Electrical Circuit To Ignition System Silicon Nitrate Ignition 67 63 Gas Valve Coils Check Silicon Nitrate Ignition 68 64 Flame Sensor Check Silicon Nitrate Ignition 68 65 Igniter Chec...

Страница 4: ...ecific instructions IMPORTANT The word IMPORTANT is used to inform the reader of specific procedures where minor machine damage will occur if the procedure is not followed NOTE The word NOTE is used t...

Страница 5: ...authorized technician and using authorized factory parts To reduce the risk of electric shock fire explosion serious injury or death Disconnect electric power to the dryer s before servicing Close ga...

Страница 6: ...in this manual is applicable to these dryers Add Letter To Designate Color L Almond W White D294SE1A NAMEPLATE MODEL NUMBER ELECTRIC HEAT GAS HEAT LEB07A 1709 X LES19A 3000 X LES19A 4500 X LES33A 3000...

Страница 7: ...at the rear of the dryer and over the heat source burner flame for gas and heating element for electric The heated air moves through the heater duct and into the cylinder where it circulates through...

Страница 8: ...Close door Inoperative door switch Test switch and replace if inoperative Timer improperly set Reset timer or try another cycle Inoperative timer Test timer and replace if inoperative Motor starting...

Страница 9: ...AUSE TO CORRECT Incorrect voltage See nameplate in door well for correct voltage Refer to INSTALLATION INSTRUCTIONS supplied with dryer for electrical requirements Clothes load too large Remove part o...

Страница 10: ...als and glides for wear or damage Broken weak or disconnected idler lever spring Replace or reconnect spring Refer to Figure 22 Belt routed on wrong side of idler lever Reroute belt Refer to Figure 21...

Страница 11: ...noperative limit thermostat Test thermostat and replace if inoperative Inoperative drive motor switch Test switch and replace if inoperative Electric Models Inoperative heater assembly Test heater ass...

Страница 12: ...flapper restricted See INSTALLATION INSTRUCTIONS supplied with dryer for exhaust requirements Silicon Carbide Ignition Burner heat not holding flame sensor contacts open Replace flame sensor or correc...

Страница 13: ...thermostat terminals If heater element heats or burner ignites when jumper wire is connected refer to Paragraph 10 Gas models Flame sensor contact closing Replace flame sensor Paragraph 36 step d or a...

Страница 14: ...RRECT Heater assembly does not heat or burner does not ignite Refer to Paragraph 5 Too much water in articles being dried Remove excess water Laundry load too large Remove part of load Maximum load Dr...

Страница 15: ...not heat or burner does not ignite Refer to Paragraph 5 Heater assembly or burner cycles off prematurely Refer to Paragraph 9 Improper or inadequate exhaust system Refer to INSTALLATION INSTRUCTIONS s...

Страница 16: ...removed from dryer before cycle has completed Allow the dryer to complete the cycle through the cool down to the OFF position Inoperative cycling thermostat Inoperative thermostat heater on the DELIC...

Страница 17: ...wiring diagram and make sure dryer is wired correctly Incorrect polarity Contact a professional electrician to check the polarity and correct any problems Seven Flashes Loose or disconnected wiring C...

Страница 18: ...d to ensure that the dryer is properly grounded W001R1 WARNING Section 4 Grounding 16 GROUND WIRES FROM TERMINAL BLOCK TO REAR BULKHEAD AND FROM REAR BULKHEAD TO CABINET TOP AND CONTROL PANEL See Figu...

Страница 19: ...HARNESS AND TO IGNITION CONTROL Gas Models With Silicon Nitrate Ignition System See Figure 4 Figure 4 WR WR WHITE ROGERS DIV EMERSON ELECTRIC CO DISCONNECT POWER BEFORE SERVICING DISCONNECT POWER BEFO...

Страница 20: ...holding control hood assembly to control hood rear panel b Rotate assembly forward to access inner wiring c Disconnect wiring from inner components and carefully remove components from control hood a...

Страница 21: ...To re assemble reverse the steps 22 TIMER Figure 5 a Pull timer knob off timer shaft b Remove the three screws holding the control assembly to the control hood rear panel c Rotate assembly forward to...

Страница 22: ...ANEL CONTROL HOOD AND CONTROLS D378PE3A SCREWS TOP COVER FABRIC SELECTOR SWITCH SIGNAL SCREW SCREW SCREW CONTROL HOOD REAR PANEL SUPPORT CONTROL PANEL CABINET TOP SWITCH KNOB ASSEMBLY TIMER KNOB ASSEM...

Страница 23: ...guards panels removed Whenever ground wires are removed during servicing these ground wires must be reconnected to ensure that the dryer is properly grounded W001R1 WARNING 25 ACCESS PANEL Figure 6 a...

Страница 24: ...re 7 or 8 a Open loading door b Models with Secured Lint Filter Remove screw from end of lint filter See Figure 8 c Lift lint filter out of air duct paying close attention to orientation IMPORTANT Whe...

Страница 25: ...alve to gas dryer s before servicing Never start the dryer s with any guards panels removed Whenever ground wires are removed during servicing these ground wires must be reconnected to ensure that the...

Страница 26: ...ure that the dryer is properly grounded W001R1 WARNING 28 INNER AND OUTER DOOR PANELS AND DOOR PULL a Remove four screws holding door assembly to hinges See Figures 7 or 8 b Remove remaining screws ar...

Страница 27: ...ull bottom of door liner out then pull down removing door liner from door panel Remove four hinge attaching screws Remove door strike from door liner and reinstall on opposite side Insert liner under...

Страница 28: ...nd bracket NOTE You may have to loosen the two screws on end of door to allow for striker and bracket removal 30 DOOR SEAL Figure 11 a Remove inner door panel from outer door panel See Paragraph 28 b...

Страница 29: ...l is properly positioned when installing on front panel 32 DOOR SWITCH Figure 13 a While supporting the access panel remove two screws from bottom edge of access panel See Figure 6 b Gently lower the...

Страница 30: ...n 5 Service Procedures Figure 13 SCREW SCREW NAMEPLATE STICKER STICKER DOOR CATCH SCREW FRONT PANEL ACCESS PANEL DOOR CATCH HINGE HOLE PLUGS LOCATOR HOLD DOWN CLIP DOOR SWITCH FRONT PANEL SEAL SCREW L...

Страница 31: ...rom cabinet top d Disconnect wires from door switch See Figure 12 NOTE Refer to wiring diagram when rewiring switch e Compress hold down clips and remove from top of access panel or front panel f Remo...

Страница 32: ...enever ground wires are removed during servicing these ground wires must be reconnected to ensure that the dryer is properly grounded W001R1 WARNING Figure 14 FLAME SENSOR LEAD IN PIPE HEATER BOX ATTA...

Страница 33: ...igure 17 2 Gently move burner tube toward rear of dryer to disengage tab from slot on left side of burner housing See Figure 17 3 Carefully rotate burner tube and igniter counterclockwise so tab is at...

Страница 34: ...edge of access panel See Figure 6 2 Gently lower the access panel to disengage locators from bottom edge of front panel See Figure 13 3 Remove wire harness from ignition control 4 Remove screws holdin...

Страница 35: ...ner housing while holding burner tube in place See Figure 17 e Gently move burner tube toward rear of dryer to disengage tab from slot on left side of burner housing See Figure 17 f Carefully rotate b...

Страница 36: ...eat procedure on models with more than one thermostat 39 HEATING ELEMENT Electric Models a While supporting the access panel remove two screws from bottom edge of access panel See Figure 6 b Gently lo...

Страница 37: ...crews holding lower duct to upper duct and remove lower air duct See Figure 19 IMPORTANT When reassembling be sure seal on exhaust fan cover makes airtight seal on flange of duct See Figure 18 If the...

Страница 38: ...on exhaust fan cover makes airtight seal on flange of duct See Figure 18 If the seal is installed improperly the airflow through the exhaust system will be restricted which can adversely affect dryer...

Страница 39: ...f the idler lever See Figure 21 i Pull assembly forward and disengage the middle exhaust duct j Rotate the assembly 90 counterclockwise and slide out through front of dryer k Motor pulley and idler pu...

Страница 40: ...inals on motor are straight and are capable of accepting the terminals from the wire harness terminal block 2 Pry two motor clamps off motor mounting bracket with screwdriver See Figure 22 then lift m...

Страница 41: ...f front panel See Figure 13 c Remove two screws holding bottom tabs on front panel to dryer side panels See Figure 13 Swing bottom of front panel away from dryer far enough to disengage hold down clip...

Страница 42: ...anels See Figure 13 Swing bottom of front panel away from dryer far enough to disengage hold down clips and locators from cabinet top d Disconnect wires from door switch See Figure 12 NOTE Refer to wi...

Страница 43: ...yer performance g Remove upper and lower air duct assembly h Cylinder Glides and Glide Bracket See Figure 29 1 Unsnap glide from each glide bracket 2 Drill out rivets holding glide bracket to front bu...

Страница 44: ...ure 12 NOTE Refer to wiring diagram when rewiring switch e Disengage belt from motor and idler pulleys See Figure 21 f Remove four screws holding bulkhead to front flange of cabinet Then lift complete...

Страница 45: ...Figure 21 NOTE When reinstalling belt be sure belt is properly installed on motor and idler pulleys and is on the correct side of the idler lever See Figure 21 Belt must be positioned around cylinder...

Страница 46: ...033 45 Section 5 Service Procedures Figure 32 REAR BULKHEAD ATTACHING SCREWS REAR BULKHEAD ATTACHING SCREWS CYLINDER ROLLER CYLINDER ROLLER HEATER DUCT EXHAUST DUCT SCREW OUTLET COVER REAR SEAL D298SE...

Страница 47: ...abinet Then lift complete bulkhead assembly out of slots in cabinet See Figure 27 IMPORTANT When reassembling be sure seal on exhaust fan cover makes airtight seal on flange of duct See Figure 18 If t...

Страница 48: ...sembling be sure seal on exhaust fan cover makes airtight seal on flange of duct See Figure 18 If the seal is installed improperly the airflow through the exhaust system will be restricted which can a...

Страница 49: ...els 1 Remove two screws holding element and plate to heater box then pull element down and away from heater box See Figure 17 2 Remove all wires from terminal block NOTE Refer to wiring diagram when r...

Страница 50: ...front panel See Figure 13 3 Remove two screws holding bottom tabs on front panel to dryer side panels See Figure 13 Swing bottom of front panel away from dryer far enough to disengage hold down clips...

Страница 51: ...NING b Power Cord 1 Remove access plate on rear of cabinet 2 Remove strain relief 3 Remove screw holding power cord ground wire to rear bulkhead See Figure 36 NOTE Reinstall screw and ground wires int...

Страница 52: ...anel to dryer side panels See Figure 13 Swing bottom of front panel away from dryer far enough to disengage hold down clips and locators from cabinet top h Disconnect wires from door switch See Figure...

Страница 53: ...ly out through front of dryer See Figure 17 6 Remove screw holding burner housing to heat shroud See Figure 17 7 Remove screw holding front of burner housing to dryer base and remove housing out throu...

Страница 54: ...e See Figure 17 5 Remove screw holding burner tube in place from right side of burner housing See Figure 17 6 Gently move burner tube toward rear of dryer to disengage tab from slot on left side of bu...

Страница 55: ...ont of machine m Disconnect wires from motor switch and remove harness clip from motor bracket See Figure 22 Then set motor and exhaust assembly off to the side n Remove screw holding bracket on exhau...

Страница 56: ...NOTE Legs can be adjusted outside the dryer by using a 1 1 4 inch size wrench or from inside the dryer with lower front access panel removed by using a 1 4 inch drive ratchet with extension b Keep dry...

Страница 57: ...igure 13 c Set timer at 60 minutes d Close the loading door Start the dryer in a heat setting refer to Operating Instructions supplied with the dryer The dryer will start the igniter will glow red and...

Страница 58: ...REW AIR SHUTTER SHUT OFF VALVE HANDLE Shown in Open Position 1 8 PIPE PLUG For checking manifold pressure D265SE3B Figure 39 SILICON NITRATE IGNITION SYSTEM WR AIR SHUTTER LOCKSCREW AIR SHUTTER SHUT O...

Страница 59: ...W001R1 WARNING Section 7 Test Procedures IMPORTANT Electrical test procedures in this service manual are performed by using a Volt Ohm meter Tests can also be performed using a multi meter or any oth...

Страница 60: ...lly depress actuator Continuity broken between switch terminal 5 and black wire C Continuity broken between switch terminal 6 and yellow wire D Manually depress actuator Continuity exists between swit...

Страница 61: ...that the dryer is properly grounded W001R1 WARNING d Motor Windings Refer to SECTION 8 G 1 2 ohms between black wire and orange wire Start Winding Inoperative start winding Replace motor H 1 2 ohms b...

Страница 62: ...hot c Burner Circuit In approximately 30 seconds the igniter attains ignition temperature and ignition is made The heat from the burner flame causes the flame sensor contacts located on burner housin...

Страница 63: ...dge of access panel See Figure 6 b Gently lower the access panel to disengage locators from bottom edge of front panel See Figure 13 c Close main gas shut off valve d Remove valve wire harness disconn...

Страница 64: ...panel See Figure 13 c Close main gas shut off valve d Remove disconnect blocks from gas valve coils e Set test meter to read Ohms and put meter probes to terminals as in Figure 42 and in the followin...

Страница 65: ...See Figure 14 e Set test meter to read Ohms put meter probes on sensor terminals Meter should read zero Ohms If meter registers an Ohm reading of any amount replace sensor 60 IGNITER CHECK SILICON CAR...

Страница 66: ...oil valve b Pre ignition Circuits When the dryer thermostat calls for heat circuits are completed through the main and redundant coil flame sensor and igniter c Burner Circuit In approximately 30 seco...

Страница 67: ...el remove two screws from bottom edge of access panel See Figure 6 b Gently lower the access panel to disengage locators from bottom edge of front panel See Figure 13 c Close main gas shut off valve d...

Страница 68: ...sters any other readings than those listed the respective coil s should be replaced 64 FLAME SENSOR CHECK SILICON NITRATE IGNITION a While supporting the access panel remove two screws from bottom edg...

Страница 69: ...niter wires at disconnect block d Set test meter to read Ohms and put meter probes on terminals 1 and 3 of igniter disconnect block See Figure 46 e Silicon Nitrate Igniter meter should read between 49...

Страница 70: ...tly lower the access panel to disengage locators from bottom edge of front panel See Figure 13 c Disconnect wires from heater assembly See Figure 17 NOTE Refer to wiring diagram when rewiring heater a...

Страница 71: ...Refer to wiring diagram when rewiring thermostat heater d Set meter to read Ohms Apply meter probes to the thermostat heater terminals Meter should read as follows Cold Ohms 120 Volt 60 Hz 2400 240 Oh...

Страница 72: ...models which do not produce an audible signal 1 Rotate timer knob to the 10 minute mark 2 If timer is advancing dryer will cycle into the cool down period and then to OFF position NOTE If timer does n...

Страница 73: ...that the dryer is properly grounded W001R1 WARNING CIRCUIT TO BE TESTED TIMER No 502964 TIMER No 502966 TIMER No 504547 TIMER No 504548 Timer Motor L2 and T L2 and T N and T N and T Signal Control P...

Страница 74: ...r is properly grounded W001R1 WARNING 74 DOOR SWITCH a While supporting the access panel remove two screws from bottom edge of access panel See Figure 6 b Gently lower the access panel to disengage lo...

Страница 75: ...ryer s with any guards panels removed Whenever ground wires are removed during servicing these ground wires must be reconnected to ensure that the dryer is properly grounded W001R1 WARNING Section 8 I...

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