4KMEDC300BW0 Whirlpool Dryer - Instructions

Kill power to dryer from breaker box.Remove lint filter & 2 screws. Take a flat head screw driver and place in gap between rash from corner of top panel & front panel of dryer and pry up to raise top panel of dryer & rest against wall the wall on angle do it doesn’t fall back toward you. Unplug wiring harness from dryer switch inside top front corner of dryer with outside of drum exposed when top panel of dryer is raised. Open dryer door and remove screws on each side of dryer switch located at upper inside corner of door opening. Take flat head screwdriver had slide in between connector & wiring harness on dryer. Remove old switch. Reconnect new dryer switch to wiring harness & remount switch to inside of dryer door opening. Lower top panel of dryer & press front corners of top panel to front panel of dryer & clips will be locked in place. Replace screws in dryer filter mounting holes yo top panel & replace dryer filter in place. Turn on power ‘ & check if light is working 1st. Then, turn timer knob clockwise, close door and listen if the drum is turning. Open door to see if drum turns. If both work, the job is complete.

As seen in video, All Good !

I REMOVED THE OLD TIMER AND INSTALLED THE NEW ONE. ALL I NEEDED WAS A 3/8 SOCKET AND IT TOOK LESS THAN 15 MINUTES. I USUALLY CANNOT FIX ANYTHING AND THIS WAS VERY SIMPLE AND THE VIDEO SHOWED ME EXACTLY WHAT TO DO. THE PART IS WORKING OK SO FAR.

OPENED REAR OF DRYER TOP PANEL, TESTED FOR CONTINUITY ON TIMER, ALL TEMP SENSORS AND HEATER COIL WITH MULTI-MEETER AS DESCRIBED IN ONLINE YOUTUBE VIDEO FOR WHIRLPOOL DRYERS. TIMER TESTED BAD AND REPLACED TIMER. EASY TO UNSCREW AND UNPLUG.

Unplug unit first.
Took the front cover off the front of dryer below the door.

first, I read the other repair stories and used them as a guide.I checked to see if the heating element was broken. It was not. The Thermal Cut off Kit was the ticket for me. I replaced the three easy parts it contained. Repair time was 30 minutes tops that includes checking the heating element and removing and replacing all three possible culprits (of the Thermal Cut-off Kit). Thanks a million. Happy Ending!Oh by the way, my dryer now dries super fast(saving me a bundle)

I watched the video or I would have likley just called a repair man. It took longer to clean behind the dryer than to install the new thermal fuse. After taking the back off the dryer is was as simple as changing a fuse. Dryer works like new for about $20 bucks and we avoided the hasle of getting a repair man, especially since we live in the country. Thanks for having a web site that is so easy to use and full of good information.

unpluged the dryer, took off the back, followed instructions and was able to take of the problem on my own.

I did my repair alone by myself after viewing a short video online at partselect.com The man in the video showed every step slowly and professionally. I took some extra time to clean the dust off behind the back of Dryer while I had it open for fixing.....thanks for your help and it saved me over $190 plus which I was quoted by technician for estimate and parts. I paid $43.00 for my parts...both High limit and Cycling thermostats were replaced. My wife told me good job honey ! You can do it too.

Installed thermal cut-off kit. Dryer works fine now. Kit very easy to install.

Took apart front of cabinet, set aside. Undid the belt drive. Removed the drum. Noticed rear seal was with large gap where it wore away, causing the lint to leak onto the interior of cabinet. Ordered a new seal, removed old seal, prepped for new seal. Used spring clamp to hold new one on place. Applied the glue to hold seal in place waited 24 hrs to dry. Reinstalled drum, put cabinet back together. Plugged in ran whisper guiet.

My dryer would not start or turn. I first moved the timer to midway between start and end of a cycle and could hear the timer ticking, likely eliminating the timer as the culprit. I next opened the door, manually pressed the door-closure switch and pressed START to see if the heating coil was heating without the drum turning to see if it might be a motor issue. After no heat, I unplugged the dryer and removed the vent hose by loosening the clamp and then removed the lower back cover using a socket and ratchet. Using a multimeter, I quickly found an open thermal fuse. I tested the remaining components to see if they also required replacement (coil, thermostat, high temp sensor) - all tested good. Took a chance and ordered the fuse alone instead of also purchasing replacement thermostat as many advise - if you have not replaced in a while, probably worth doing now. I have replaced mine within a year or two and chalked up the issue to my kids not clearing the vent, so I went without the new thermostat. Model number was found by opening the lid - parts arrived incredibly fast especially for being around the holidays. Replaced the fuse with ease - there is a notch in one end that holds the non-screw end in place so it's flush. Plugged the dryer back in, selected a cycle and confirmed the dryer started and heated as normal. I then had my son open the dryer door to confirm the drum stopped turning. HERE'S WHERE IT TAKES A TWIST: When the door was open, the heating coil continued to glow red hot (faulty timer??) I moved selector to end of cycle and the glow stopped. (timer's good) I then moved the selector mid-way between cycles with the dryer door open and WITHOUT PRESSING START and the coil again glowed red. Disconnected power, disconnected coil and using multimeter, checked from coil input to case ground (any bare metal) and found one side of the coil to be grounded. I was able to removed the heating coil and locate where the coil was touching the case. I shifted the coil back into place, checked with meter (no ground this time), reinstalled and tested with no problems. Reinstalled the back plate and vent hose. Finally, had conversation with the kiddos about being gentle when moving the dryer and all was well. The thermal fuse portion took 15 minutes from diagnosis to replacement. The overall process (due to the additional grounded heating coil) took 30-60. With any repair like this, I usually recommend visually verifying the heat cycles on and off by carefully running with the door open and holding the switch. This will help you determine if you may have an additional faulty part that made the first one fail. (Most likely, thermostat).

first with the dryer unpluged ,i removed the wires from the upper thermal cut off ,then with a nut driver i removed it . replaced it with the new one and reattatched the two wires then the same on the bottom thermal . to replace the spring i removed the two screws pulled out the switch and spring at the same time ,removed the broken spring and replaced it onto the switch then placed it back into the dryer and replaced the screws.! everything worked like it han never been broke! my wife is verry happy!!!

Removed Back and found schematic. Found fuses on schamatic and parts inside dryer. Checked fuses and thermal fuses with an ohm meter and found one that was open. Went to Parts select and ordered part. Relpaced the part and dryer works like new.

Replaced the most worn drum wheel any lubed the belt tension arm pulley. The noise didn't go completely away. There are 4 drum wheels. I need to order 3 more wheels and the tension arm now.