Discuss

Whirlpool dryer won't start - all switches, fuse, thermostat OK

 in

Dryer Repair

. "

My dryer was running fine on the humidity-sensor option, when I stopped it and removed the clothing. I loaded it

..."
 
 
Register | FAQ's | New Posts | Today's Posts | Extras
Appliance Repair Forum > Appliance Repair Help > Dryer Repair » Whirlpool dryer won't start - all switches, fuse, thermostat OK

Post New Thread  Reply By reading any content on this site you agree to AppliancePartsPros.com, Inc. disclaimer and Terms of Use.
 
LinkBack Thread Tools Search this Thread Display Modes
  #1 (permalink)  
Old 12-01-2009, 05:17 PM
Junior Member
 
Join Date: Dec 2009
Posts: 5
grosvenor3 is on a distinguished road
Default Whirlpool dryer won't start - all switches, fuse, thermostat OK
Model Number: LER8857EQ2   Brand: Whirlpool   Age: 5 - 10 years   

Appliance Parts from AppliancePartPros.com


My dryer was running fine on the humidity-sensor option, when I stopped it and removed the clothing. I loaded it with some new clothing and pushed the start button, but nothing happened. I have checked the thermal fuse, the thermostat, and the start button for continuity, and they all seem OK. The light still works. The controller sounds like a clock when I set it to a timed cycle, but the dryer won't start on any control setting. I cannot see any obvious problems with the small circuit board near the start switch. The exhaust pipe is fairly clean and does not seem to restrict flow. My next bet is the motor. Any other things I should check?

Drowning in laundry in Indy,
Bill


Related Models
Whirlpool LER8857EQ2 ELECTRIC DRYER
Whirlpool LER8857EZ0 ELECTRIC DRYER
Whirlpool LER8857EZ1 DRYERS
Whirlpool LER8857EZ2 ELECTRIC DRYER
Whirlpool LER8858DQ0 ELECTRIC DRYER
Whirlpool LER8858DQ1 ELECTRIC DRYER
Whirlpool LER8858DZ0 ELECTRIC DRYER
Whirlpool LER8858DZ1 ELECTRIC DRYER
Whirlpool LER8858EQ0 ELECTRIC DRYER
Whirlpool LER8858EQ1 DRYERS
Whirlpool LER8858EQ2 ELECTRIC DRYER
Whirlpool LER8858EZ0 ELECTRIC DRYER
Whirlpool LER8858EZ1 DRYERS
Whirlpool LER8858EZ2 ELECTRIC DRYER
Whirlpool LER8875EQ1 ELECTRIC DRYER
Amana LES10AW WASHER-TOP LOADING
Amana LES19AW DRYER- GAS
Amana LES33AW DRYER- GAS
Amana LES34AW WASHER-TOP LOADING
Frigidaire LES389FEA Frigidaire/electric Range
Frigidaire LESR26EFE0 Frigidaire/refrigerator
Frigidaire LESR26EFE3 REFRIGERATOR
Frigidaire LESR26EFE4 REFRIGERATOR
Frigidaire LESR26EFE5 REFRIGERATOR
Frigidaire LESR26EFE6 REFRIGERATOR
Frigidaire LESR26EFE7 REFRIGERATOR
Whirlpool LET5434AQ0 Residential Dryer
Whirlpool LET5434AW0 Residential Dryer
Whirlpool LET5436AW0 Residential Dryer
Whirlpool LET5624BN0 ELECTRIC DRYER
Whirlpool LET5624BN1 ELECTRIC DRYER
Whirlpool LET5624BN2 ELECTRIC DRYER
Whirlpool LET5624BQ0 ELECTRIC DRYER
Whirlpool LET5624BQ1 ELECTRIC DRYER
Whirlpool LET5624BQ2 ELECTRIC DRYER
Whirlpool LET5624BW0 ELECTRIC DRYER
Whirlpool LET5624BW1 ELECTRIC DRYER
Whirlpool LET5624BW2 ELECTRIC DRYER
Whirlpool LET5624DQ0 ELECTRIC DRYER
Whirlpool LET5624DQ1 DRYER
Whirlpool LET6634AN1 ELECTRIC DRYER
Whirlpool LET6634AN2 ELECTRIC DRYER
Whirlpool LET6634AQ0 ELECTRIC DRYER
Whirlpool LET6634AQ1 ELECTRIC DRYER
Whirlpool LET6634AQ2 ELECTRIC DRYER
Whirlpool LET6634AW0 Residential Dryer
Whirlpool LET6634AW1 ELECTRIC DRYER
Whirlpool LET6634AW2 ELECTRIC DRYER
Whirlpool LET6634DQ0 ELECTRIC DRYER
Whirlpool LET6634DQ1 ELECTRIC DRYER
Whirlpool LET6634DZ0 ELECTRIC DRYER
Whirlpool LET6634DZ1 ELECTRIC DRYER
Whirlpool LET6638AN1 DRYER
Whirlpool LET6638AN2 ELECTRIC DRYER
Whirlpool LET6638AQ2 ELECTRIC DRYER
Whirlpool LET6638AW0 Residential Dryer
Whirlpool LET6638AW1 DRYER
Whirlpool LET6638AW2 ELECTRIC DRYER
Whirlpool LET6638DQ0 ELECTRIC DRYER
Whirlpool LET6638DQ1 ELECTRIC DRYER
Whirlpool LET6638DZ0 ELECTRIC DRYER
Whirlpool LET6638DZ1 ELECTRIC DRYER
Whirlpool LET7646AQ0 Residential Dryer
Whirlpool LET7646AQ1 ELECTRIC DRYER
Whirlpool LET7646AQ2 ELECTRIC DRYER
Whirlpool LET7646AW0 Residential Dryer
Whirlpool LET7646AZ1 ELECTRIC DRYER
Whirlpool LET7646AZ2 ELECTRIC DRYER
Whirlpool LET7646DQ0 ELECTRIC DRYER
Whirlpool LET7646DQ1 ELECTRIC DRYER
Whirlpool LET7646DZ0 ELECTRIC DRYER
Whirlpool LET7646DZ1 ELECTRIC DRYER
Whirlpool LET7646EQ0 ELECTRIC DRYER
Whirlpool LET7646EQ1 DRYERS
Whirlpool LET7646EQ2 ELECTRIC DRYER
Whirlpool LET7646EZ0 ELECTRIC DRYER
Whirlpool LET7646EZ1 DRYERS
Whirlpool LET7646EZ2 ELECTRIC DRYER
Whirlpool LET7848AQ0 Residential Dryer
Whirlpool LET7848AQ1 ELECTRIC DRYER
Whirlpool LET7848AQ2 ELECTRIC DRYER
Whirlpool LET7848AW0 Residential Dryer
Whirlpool LET7848AZ1 ELECTRIC DRYER
Whirlpool LET7848AZ2 ELECTRIC DRYER
Whirlpool LET7848DQ0 ELECTRIC DRYER
Whirlpool LET7848DQ1 ELECTRIC DRYER
Whirlpool LET7848DZ0 ELECTRIC DRYER
Whirlpool LET7848DZ1 ELECTRIC DRYER
Whirlpool LET8858AN1 ELECTRIC DRYER
Whirlpool LET8858AN2 ELECTRIC DRYER
Whirlpool LET8858AQ0 ELECTRIC DRYER
Whirlpool LET8858AQ1 ELECTRIC DRYER
Whirlpool LET8858AQ2 ELECTRIC DRYER
Whirlpool LET8858AW0 Residential Dryer
Whirlpool LET8858AW1 ELECTRIC DRYER
Whirlpool LET8858AW2 ELECTRIC DRYER
Whirlpool LET8858AZ0 ELECTRIC DRYER
Whirlpool LET8858AZ1 ELECTRIC DRYER
Whirlpool LET8858AZ2 ELECTRIC DRYER
Whirlpool LET8858DQ0 ELECTRIC DRYER
Whirlpool LET8858DQ1 ELECTRIC DRYER
Whirlpool LET8858DZ0 ELECTRIC DRYER
Whirlpool LET8858DZ1 ELECTRIC DRYER
Amana LEU108 RANGE- S/C S/I DDRAFT GAS
Whirlpool LEV4434AW0 Residential Dryer
Whirlpool LEV4436AW0 Residential Dryer
Whirlpool LEV4624BG0 ELECTRIC DRYER
Whirlpool LEV4624BN0 ELECTRIC DRYER
Whirlpool LEV4624BW0 ELECTRIC DRYER
Whirlpool LEV4634JQ0 ELECTRIC DRYER
Whirlpool LEV4634JQ1 RESIDENTIAL DRYER
Whirlpool LEV4634JQ2 29" ELECTRIC DRYER
Whirlpool LEV4634JT0 ELECTRIC DRYER
Whirlpool LEV4634JT1 RESIDENTIAL DRYER
Whirlpool LEV4634PQ0 29" ELECTRIC DRYER
Whirlpool LEV4634PQ1 29" ELECTRIC DRYER
Whirlpool LEV5634AG1 ELECTRIC DRYER
Whirlpool LEV5634AN1 ELECTRIC DRYER
Whirlpool LEV5634AW0 Residential Dryer
Whirlpool LEV5634AW1 ELECTRIC DRYER
Reply With Quote
See inside of your appliance - diagrams and part photos for virtually every model.

powered by AppliancePartsPros.com
 
  #2 (permalink)  
Old 12-02-2009, 03:52 AM
Senior Expert
APP Volunteer
 
Join Date: Feb 2008
Posts: 17,397
denman is a name known to all
Default

Here are your parts
Replacement parts for WHIRLPOOL LER8857EQ2 | AppliancePartsPros.com

Here is the wiring diagram
http://www.servicematters.com/docs/w...%203406699.pdf

I have checked the thermal fuse, the thermostat
I am assuming the one you checked was the one on the blower as your unit has 2 fuses.
Also did you remove a wire from one side of it to ensure you do not read an alternate/parallel circuit path.
The thermostat has nothing to do with the motor starting.

and the start button for continuity, and they all seem OK.

When you checked this were you sure that you measured the contacts and not the relay winding?


The controller sounds like a clock when I set it to a timed cycle, but the dryer won't start on any control setting.

Sounds like it is getting power but I would check the power into the unit just to be sure.
L1 to L2 should be 240 volts
L1 to Neutral and L2 to Neutral, both should be 240 volts
Also check the terminal block in the unit to be sure a wire has not burned off.

I cannot see any obvious problems with the small circuit board near the start switch.
This varies the power to the timer so should not effect starting

Start switch info: When you push the start switch it closes the contacts for the start. It also provides a circuit path through the relay coil which latches the contacts closed.

Your start circuit path in timed dry is:
Neutral , DOOR SWITCH , TIMER SWITCH 4 T/W , centrifugal switch , DRIVE MOTOR start & main windings , THERMAL FUSE , PUSH TO START RELAY contacts , TIMER CONTACT 1 BU/BK , L1

Put the unit in timed dry mid cycle.
Attach one meter lead to L1 then work your way back through the components till you find the open.

I am also assuming that the unit is not buzzing which is often a sign of a motor problem.
__________________
-
Reply With Quote
  #3 (permalink)  
Old 12-04-2009, 05:20 AM
Junior Member
 
Join Date: Dec 2009
Posts: 5
grosvenor3 is on a distinguished road
Default

Thank you very much for your suggestions. I noticed that the large capacitor on the circuit board was bent at its leads, so I replaced it. I later read your reply, so I am not surprised that no improvement to starting occurred. Yes, I have removed at least one wire each time I've checked a switch, fuse, or thermostat. I have found only one fuse. This is the one down low, near the exhaust pipe. Can you point me to the other? The thermal cutoff at the top of the heater checks OK, as does the thermostat at the bottom of the heater. When I checked the start switch, I held my multimeter leads against the different prongs and pressed the switch. As for a buzzing sound, there is none; all is quiet except for the timer, which I can hear when I put my ear against it. Again, thanks for your help, and I'll follow the circuitry back per your list.
Reply With Quote
  #4 (permalink)  
Old 12-04-2009, 06:27 AM
Senior Expert
APP Volunteer
 
Join Date: Feb 2008
Posts: 17,397
denman is a name known to all
Default

Fuses are:
Item 7 in Section 3 this one will kill power to the motor.
Item 9 in Section 3 this one kills power to the heater.
__________________
-
Reply With Quote
  #5 (permalink)  
Old 12-05-2009, 08:20 PM
Junior Member
 
Join Date: Dec 2009
Posts: 5
grosvenor3 is on a distinguished road
Default

Quote:
Originally Posted by denman View Post
Fuses are:
Item 7 in Section 3 this one will kill power to the motor.
Item 9 in Section 3 this one kills power to the heater.
OK, I've got 120V from L1 to neutral and L2 to neutral and 240V from L1 to L2. I've removed the drum and tried to test the motor. I've removed the connector. At either end of the connector is a larger gauge red wire. The two largest terminals on the motor, which connect to the red wires, do not show connectivity. Does that indicate a faulty motor? Thanks again.

Bill
Reply With Quote
  #6 (permalink)  
Old 12-06-2009, 01:06 AM
Senior Expert
APP Volunteer
 
Join Date: Feb 2008
Posts: 17,397
denman is a name known to all
Default

Does that indicate a faulty motor?

No
The red wires probably go to one of the centrifugal switches.
This switch closes when the motor gets close to operating speed.
It then provides power to the heating coil and has nothing to do with starting/running the motor.

FYI: It is there to ensure that the coil does not heat up without air from the blower passing over it, as this would cause the heater to overheat.

The other centrifugal switch removes the motor's start winding from power.
If it is left in circuit while the motor is running it will cause the motor to overheat.
White to Blue should be approximately 2 ohms.
__________________
-
Reply With Quote
  #7 (permalink)  
Old 12-10-2009, 05:21 PM
Junior Member
 
Join Date: Dec 2009
Posts: 5
grosvenor3 is on a distinguished road
Default

I have now resolved the problem...with help from a used appliance shop. The timer, although its clock was still functioning (I could hear this when the power was connected), had burnt or worn through a contact. This prevented the dryer from starting. A new timer cost me $94. Thanks, again, for all your suggestions.
Reply With Quote
  #8 (permalink)  
Old 12-10-2009, 05:49 PM
Senior Expert
APP Volunteer
 
Join Date: Feb 2008
Posts: 17,397
denman is a name known to all
Default

You are welcome

Glad to hear you found the culprit.
__________________
-
Reply With Quote
See inside of your appliance - diagrams and part photos for virtually every model.

powered by AppliancePartsPros.com
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Free Thermostat fuse for Maytag gas dryer JohnGoubeaux Dryer Repair 0 11-05-2009 12:03 PM
Free Thermostat fuse for Maytag gas dryer JohnGoubeaux Dryer Repair 0 11-05-2009 11:58 AM
Whirlpool gas dryer, with fuse, thermostat, and igniter, still run but no heat yzhong Dryer Repair 3 08-10-2009 07:32 PM
Dryer still won't start, have replaced thermal fuse and thermostat-fix JRHeck Dryer Repair 2 06-17-2009 08:52 AM
Monitor fuse blows, door switches OK !? mgai7755 Microwave Repair 0 04-16-2008 01:28 PM



All times are GMT -7. The time now is 12:49 AM.

The content on this web site is for informational purposes only and is not intended to replace an on-site diagnosis from a qualified appliance service technician. By reading any content on this site you agree to AppliancePartsPros.com , Inc. disclaimer and Terms of Use.
Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17