WGD4870BW0 Whirlpool Dryer - Instructions

I suspected a faulty igniter and disconnected the cable to the igniter and measured the resistance of the igniter and found it to be 70 ohms then I checked the voltage at the same cable towards the power source and found it to be 25 volts ac which should be 120 volts ac. Next I checked the radiant flame sensor and found it to be open (it should be a closed circuit when cold). I removed the flame sensor (with the power off) using a small box wrench and found a broken lead. Replacing the flame sensor solved the problem.

removed front of dryer located igniter removed two screws disconnected wires then put new one in also replace thermal fuse and thermostat on back of dryer works great.

I was reluctant to call a repair service. Typically when an appliance is as old as my dryer (14 years old), service people encourage you to replace, not repair. I had replaced the dryer's motor within the last 5 years and believed my dryer still had life to it. At first, I tried cleaning the lint build up from the dryer cavity and hoses. This worked but only for a couple of days. After reading other successful repair stories on the website, I decided to try replacing the thermal fuse. It was so easy. The part was easily identifiable. It was just a little hard to yank off the connecting wires. Good as new and no service call.

Took off back panel. unscrew timer. unplug wire and replace new wires from new timer, one at a time to make sure plugged to right terminals. screw back on the new timer. replace back panel.

After researching and finding correct replacement unit placed order and waited to receive. Screen is located top of dryer so replacement simple and fit was perfect.

Took back cover off
Disconnected part
Put new one in
Reconnected wires
Put back cover on

To verify that this was the needed part, I used a digital multimeter to confirm there was no continuity.

Took everything apart, replaced the igniter flint, and still didn't get heat. Then found out the thermal sensor wasn't running a electrical current through it with voltmeter and just replaced that, now it we have heat again!

I looked at the parts breakdown to see how it cam apart.

I tore the dryer down,
1. removed the door
2. openned the top
3. removed front panel
4. removed fron bulkhead
5. removed belt and drum
6. removed back cover
7. removed the ductwork
8. removed the fan (this is the hardest part, it is very tight on the motor with left hand threads, there are flats on the (inside of the dryer)fan where the motor shaft goes into the fan for a wrench and you can put a socket on the front pulley on the motor. I ended up just knocking the center out of the fan and replacing it.
9. removed the motor and cleaned the entire unit
10. reinstalled everything in reverse order. Note:I went ahead and replaced the idler pulley and the rear wheels that support the drum, and put a new belt in (just about
everything that could fail) I spent about $200 to keep a $1200 dryer in service at least another 7 years.

My 80 series Kenmore dryer wouldn't start so I looked online for a solution to the problem. One of the sites I found stated that the problem could be as simple as a thermal fuse if other potential issues could be ruled out. I ordered the part on a Monday from PartSelect with standard FedEx ground shipping - stated it could be 3-5 business days. To my amazement, the part arrived the next day! Awesome!!! I watched the video on the PartSelect site to make sure I knew how to fix it, then followed the easy instructions. All I needed to do was use the nutdriver to remove the back cover from the dryer, unplug the two wires going into the thermal fuse, remove the old fuse, and pop the new one in. Then I just plugged the wires into the new fuse, replaced the cover and voila, the dryer worked like a champ! Thank you PartSelect for saving me a needlessly high repair bill!!

Remove back panel n u can see the sensor and easy to replace thanks to the print out i was provided love this website

Replacing the part was easy: unscrew the old one from the front of the dryer after opening door, disconnect and replace with new one. Getting to it was a bit more difficult: Remove 6 screws from the back, 4 that hold the back of the top down and 2 that hold the control panel in place. You had to remove the control panel to free up the wiring bundle (held in place by a tie wrap inside the control panel housing) so you could move the top forwards enough. Then remove the top of the dryer by lifting the back up slightly and moving it forward to disconnect from attachments in the front and move aside to gain access to the switch.

I had an issue where I was not getting any power to my ignitor. After replacing the ignitor with a fresh one, the problem persisted. Next, I went hunting all the fuses and therrmostats for continuity. All seemed fine. So finally I decided to jump the flame sensor which is located on the outside of the flame tube. WHALLA! It ignited the glow plug. So with one 1/4"" nut driver I removed the single bolt from the unit, then I used a pliers to remove the two wires from the old unit. I replaced the sensor with Tue new unit and all was well. It took less than 5 min once I diagnosed the problem.

just slide the new filter in.

Thermal fuse was blown so I replaced it. Still no heat. Hi-Limit thermostat and Cycling Thermo. had continuity as did flame sensor. Igniter tested 66ohms. I placed a wire jumper across the Hi-Limit and the igniter glowed, solenoids opened and gas came on. I orderd the Hi-Limit and since both "overheating" limiters were defective I decided to order the cycling thermo just in case. The Hi-Limit was received in 2 days but the Cycling Thermo was backordered. In the meantime my wife got antsy so I went ahead and installed the Hi-Limit and put her back in service... ...for one load. I wasn't certain if I had fried the "limiters" again but since they had continuity and I could measure continuity all the way to the Igniter I decided that it HAD to be the cause. I ignored the flame sensor since it never came into play without the igniter glowing... The igniter arrived and measured 56ohms. Hmmm... After installing the problem was solved. Word of advice: If the thermal fuse is blown and even if all else in the circuit SEEMS ok, go ahead and order the Fuse, Hi-Limit and Cycling Thermos, and the Igniter. It will take you about 30 minutes to install and you'll reduce your out-of-service time! Good luck!

Followed simple instructions to replace two pulleys and belt. The Virtual Repairman helped me identify the cause in minutes. Took another 5 minutes to place the order and the part arrived two days later. Saved $125 at least. Thank you!

john