manualshive.com logo in svg

Alliance Laundry Systems LES19A SERIES, Service Manual

Share
Download
Alliance Laundry Systems LES19A SERIES Service Manual Download Page 61

62

505692

Section 7 Test 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

58. SENSOR CHECK – SILICON CARBIDE 

IGNITION

a. While supporting the access panel, remove two 

screws from bottom edge of access panel. See 
Figure 5. 

b. Gently lower the access panel to disengage 

locators from bottom edge of front panel. See 
Figure 12.

c. Close main gas shut-off valve.

d. Remove wires from sensor terminals. See 

Figure 12.

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.

59. IGNITER CHECK – SILICON CARBIDE 

IGNITION
Gas dryers are manufactured with an igniter.

a. While supporting the access panel, remove two 

screws from bottom edge of access panel. See 
Figure 5.

b. Gently lower the access panel to disengage 

locators from bottom edge of front panel. See 
Figure 12.

c. Disconnect igniter wires at disconnect block.

d. Set test meter to read Ohms and put meter 

probes on terminals of igniter wires.

e. Silicon Carbide Igniter – meter should read 

between 45 – 200 Ohms. See Figure 40. 

If meter does not read appropriate Ohms, then 
replace the igniter.

IMPORTANT: Always examine all wires, terminals 
and connectors to be sure wiring is proper before 
replacing any components.

Figure 40

60. THERMAL FUSE (ELECTRIC MODELS)

a. While supporting the access panel, remove two 

screws from bottom edge of access panel. See 
Figure 5.

b. Gently lower the access panel to disengage 

locators from bottom edge of front panel. See 
Figure 12.

c. Label and disconnect wires from thermal fuse. 

See Figure 15.

NOTE: Refer to wiring diagram when rewiring 
thermal fuse.

d. Set multimeter to read Ohms on the X1 scale. 

Apply meter probes to the thermal fuse 
terminals. Multimeter should read 0 Ohms. If 
the meter does not show any reading (infinite 
Ohms), then the fuse is open. If the fuse is open, 
then replace BOTH the thermal fuse and the 
limit thermostat.

MOUNTING

SCREW

CERAMIC

PORTION

SILICON CARBIDE IGNITER AND

BRACKET ASSEMBLY

D271SE3B

Summary of Contents for LES19A SERIES

Page 1: ...Service Dryers Nonmetered See Page 5 for Model Numbers Part No 505692 December 1998 D281P...

Page 2: ...rom Terminal Block To Rear Bulkhead And From Rear Bulkhead To Control Housing Electric Models Only 17 16 Ground Wires From Power Cord To Rear Bulkhead And From Rear Bulkhead To Control Housing Check W...

Page 3: ...Silicon Carbide Ignition 61 58 Sensor Check Silicon Carbide Ignition 62 59 Igniter Check Silicon Carbide Ignition 62 60 Thermal Fuse Electric Models 62 61 Heater Assembly Electric Models 63 62 Cyclin...

Page 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...

Page 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...

Page 6: ...ial numbers Model and serial numbers are located on nameplate s as shown Model Identification Information in this manual is applicable to these dryer models Add Letter To Designate Color L Almond W Wh...

Page 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...

Page 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...

Page 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...

Page 10: ...als and glides for wear or damage Broken weak or disconnected idler lever spring Replace or reconnect spring Refer to Figure 20 Belt routed on wrong side of idler lever Reroute belt Refer to Figure 19...

Page 11: ...at cycle Reset timer Try another cycle Inoperative limit thermostat Test thermostat and replace if inoperative Inoperative drive motor switch Test switch and replace if inoperative Electric Models Ino...

Page 12: ...r or inadequate exhaust system Weather hood flapper restricted See INSTALLATION INSTRUCTIONS supplied with dryer for exhaust requirements Burner heat not holding flame sensor contacts open Replace fla...

Page 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 35 step c or a...

Page 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...

Page 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...

Page 16: ...TALLATION INSTRUCTIONS supplied with dryer for exhaust requirements Clothes are removed from dryer before cycle has completed Allow the dryer to complete the cycle through the cool down to the OFF pos...

Page 17: ...rvicing 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 W...

Page 18: ...ground wires must be reconnected to ensure that the dryer is properly grounded W001R1 WARNING 16 GROUND WIRES FROM POWER CORD TO REAR BULKHEAD AND FROM REAR BULKHEAD TO CONTROL HOUSING CHECK WALL RECE...

Page 19: ...ore 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 grou...

Page 20: ...rom control hood assembly NOTE Refer to wiring diagram when rewiring component parts d Remove two screws holding end cap to end of support control panel e Carefully pry end cap from support control pa...

Page 21: ...anel c Rotate assembly forward to access inner wiring d Disconnect wiring from switch and carefully remove switch from control hood assembly NOTE Refer to wiring diagram when rewiring component parts...

Page 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...

Page 23: ...ith 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 24 ACCESS PANEL Fig...

Page 24: ...es 6 or 7 a Open loading door b Models with secured lint filter remove screw from end of lint filter See Figure 7 c Lift lint filter out of air duct paying close attention to orientation IMPORTANT Whe...

Page 25: ...26 505692 Section 5 Service Procedures Figure 7 SECURED LINT FILTER D306SE3D HINGE ATTACHING SCREWS LINT FILTER ATTACHING SCREW DOOR ATTACHING SCREWS LINT FILTER FRONT BULKHEAD DOOR HINGES...

Page 26: ...sure that the dryer is properly grounded W001R1 WARNING 27 INNER AND OUTER DOOR PANELS AND DOOR PULL a Remove four screws holding door assembly to hinges See Figures 6 or 7 b Remove remaining screws a...

Page 27: ...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 fla...

Page 28: ...cket NOTE You may have to loosen the two screws on end of door to allow for striker and bracket removal 29 DOOR SEAL Figure 10 a Remove inner door panel from outer door panel See Paragraph 27 b Grasp...

Page 29: ...l is properly positioned when installing on front panel Figure 11 31 DOOR SWITCH Figure 12 a While supporting the access panel remove two screws from bottom edge of access panel See Figure 5 b Gently...

Page 30: ...n 5 Service Procedures Figure 12 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...

Page 31: ...y lower the access panel to disengage locators from bottom edge of front panel See Figure 12 3 Close main gas shut off valve 4 Disconnect igniter wires at disconnect blocks sensor wires from flame sen...

Page 32: ...inals See Figure 13 4 Remove screw holding flame sensor to burner housing See Figure 13 Figure 14 FLAME SENSOR LEAD IN PIPE HEATER BOX ATTACHING SCREWS HEAT SHROUD SENSOR TERMINALS TAB UNION NUT NIPPL...

Page 33: ...or wires from flame sensor terminals and wires from gas valve coils at the quick disconnect blocks See Figure 13 d Remove screw from right side of burner housing while holding burner tube in place See...

Page 34: ...it thermostat to burner housing or heater assembly See Figure 15 d Repeat procedure on models with more than one thermostat 38 HEATER ASSEMBLY Electric Models a While supporting the access panel remov...

Page 35: ...nt panel See Figure 12 IMPORTANT When installing lint filter be sure to install the filter with the words facing the front of the dryer If filter is installed backwards lint will accumulate in exhaust...

Page 36: ...ct to upper air duct and remove lower air duct See Figure 17 IMPORTANT When reassembling be sure seal on exhaust fan cover makes airtight seal on flange of duct See Figure 16 If the seal is installed...

Page 37: ...ust assembly be sure wire harness on right side is clipped to motor mounting bracket and is routed along dryer base between motor mounting bracket and right side of cabinet See Figure 16 Tab on rear o...

Page 38: ...replacing the idler arm it is important to make sure the idler arm moves freely To ensure that the idler arm can move freely proceed as follows 1 Unhook idler spring 2 Lift idler arm approximately 3 i...

Page 39: ...apable of accepting the terminals from the wire harness terminal block 2 Pry two motor clamps off motor mounting bracket with screwdriver See Figure 20 then lift motor out of mounting bracket NOTE Whe...

Page 40: ...edge of front panel See Figure 12 c Remove two screws holding bottom tabs on front panel to dryer side panels See Figure 12 Swing bottom of front panel away from dryer far enough to disengage hold dow...

Page 41: ...anels See Figure 12 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 11 NOTE Refer to wi...

Page 42: ...yer performance g Remove upper and lower air duct assembly h Cylinder Glides and Glide Bracket See Figure 27 1 Unsnap glide from each glide bracket 2 Drill out rivets holding glide bracket to front bu...

Page 43: ...ure 11 NOTE Refer to wiring diagram when rewiring switch e Disengage belt from motor and idler pulleys See Figure 19 f Remove four screws holding bulkhead to front flange of cabinet Then lift complete...

Page 44: ...Figure 19 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 19 Belt must be positioned around cylinder...

Page 45: ...505692 Section 5 Service Procedures Figure 30 REAR BULKHEAD ATTACHING SCREWS REAR BULKHEAD ATTACHING SCREWS CYLINDER ROLLER CYLINDER ROLLER HEATER DUCT EXHAUST DUCT SCREW OUTLET COVER REAR SEAL D298SE...

Page 46: ...cabinet Then lift complete bulkhead assembly out of slots in cabinet See Figure 25 IMPORTANT When reassembling be sure seal on exhaust fan cover makes airtight seal on flange of duct See Figure 16 If...

Page 47: ...hen lift complete bulkhead assembly out of slots in cabinet See Figure 25 IMPORTANT When reassembling be sure seal on exhaust fan cover makes airtight seal on flange of duct See Figure 16 If the seal...

Page 48: ...ls 1 Remove two screws holding element and plate to heater duct then pull element down and away from heater duct See Figure 15 2 Remove all wires from terminal block NOTE Refer to wiring diagram when...

Page 49: ...ont panel See Figure 12 3 Remove two screws holding bottom tabs on front panel to dryer side panels See Figure 5 Swing bottom of front panel away from dryer far enough to disengage hold down clips and...

Page 50: ...d W001R1 WARNING 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 34 NOTE Reinstall screw and grou...

Page 51: ...panel to dryer side panels See Figure 5 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...

Page 52: ...yer See Figure 12 8 Remove four screws holding shroud to heater duct Remove shroud out through front of dryer See Figure 12 p Electric Models 1 Remove two screws holding element and plate to heater bo...

Page 53: ...connect wire harness from limit thermostat thermal fuse and or heating element See Figure 15 g Open loading door and remove lint filter See Figure 7 h Remove screws holding air duct to front bulkhead...

Page 54: ...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...

Page 55: ...the dryer in a heat setting refer to Operating Instructions supplied with the dryer The dryer will start the igniter will glow red and the main burner will ignite e Allow the dryer to operate for app...

Page 56: ...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...

Page 57: ...ly 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 switc...

Page 58: ...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 betwee...

Page 59: ...ng the igniter to get 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 loc...

Page 60: ...See Figure 38 Meter should register line voltage in all Fabric settings except FLUFF which should read zero VAC g If meter does not read line voltage in step f check motor switch thermostats fabric sw...

Page 61: ...m bottom edge of access panel See Figure 5 b Gently lower the access panel to disengage locators from bottom edge of front panel See Figure 12 c Disconnect igniter wires at disconnect block d Set test...

Page 62: ...locators from bottom edge of front panel See Figure 12 c Label and disconnect wires from thermostat See Figures 15 or 16 NOTE Refer to wiring diagram when rewiring thermostat Cycling Thermostat S P S...

Page 63: ...and activate dryer start switch 2 Rotate timer knob to a position where the signal will activate then release timer knob 3 If timer is advancing signal will end in less than 10 minutes 4 If signal co...

Page 64: ...d Whenever ground wires are removed during servicing these ground wires must be reconnected to ensure that the dryer is properly grounded W001R1 WARNING Figure 41 CIRCUIT TO BE TESTED TIMER No 505473...

Page 65: ...r is properly grounded W001R1 WARNING 67 DOOR SWITCH a While supporting the access panel remove two screws from bottom edge of access panel See Figure 5 b Gently lower the access panel to disengage lo...

Page 66: ...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...

Reviews:

No comments

Brands by name

Popular brands

Load more brands