Hi, it’s Jack from AustinAppliancePros. Today we’re going to show you how to change a high-limit thermostat on your dryer. Really easy job; all we’re going to need is a Phillips screwdriver, a putty knife, and maybe a pair of needle nose pliers.
Let me show you how we do it.
Now the first step in this repair will be to disconnect the power to the dryer: simply pull the plug if it has one on it, if it’s a direct-wired dryer than you’ll need to locate the fuses or circuit breakers and turn those off. Next we’ll remove the main top, there’s a couple of spring-clips in about two inches on either side so with a putty knife we’ll locate those, depress them, lift up on the lid. Just open the lid up, and then we’ll remove this ground strap at the back, and then lift the lid right off.
Next we’ll disconnect the two wire harnesses along the side here; tuck that down out of the way.
There are two Phillips screws that are located about four inches down on either side that hold the front panel to the cabinet. So we’ll remove those. Now we can tilt the front panel forward, lower it down enough that you can disengage the hooks on the bottom of the front panel and then we’ll set this whole assembly aside.
Next we’re going to remove this little guard on the front; a single Phillips screw. That will give us a little more room to remove the drum.
Now there’s an idler assembly that’s located right in behind the blower, it has some spring tension on it, so we’re going to release the tension on that spring then roll the belt of the motor pulley. So reach in on one side, locate that. Next, using the belt, we’ll lift up on the back of the drum to disengage the baring, then we’re going to tilt it enough to get it through the opening, and then we’ll set the drum assembly aside.
Now that we have the drum out we have better access to that high-limit thermostat. You could attempt to replace that with the drum intact, but what I’ve found is that there’s not enough room to get a screwdriver in here easily and inevitably you end up dropping a screw down into the bottom of the cabinet and you’ll have to start all over. So with a pair of needle nose pliers we’ll take those terminals off, and check those for any signs of discoloration or burning and if that’s the case they’ll need to be replaced.
Next, with a Phillips screwdriver, remove those two screws.
Now with the two screws removed we can discard the old thermostat and we’re ready to reinstall the new one.
Now we’re ready to reinstall the harness. Make sure the terminals fit snuggly and if they don’t just crimp them with a pair of needle nose pliers. And now we’re ready to start the reassembly.
Now we’re ready to reinstall the drum; we’ll fit it through the opening, then lift that baring up into the baring holder, push it down into place. Line the belt up roughly where it belongs, you’ll see some marks on the drum, and then we need to wrap the belt around the idler pulley and the motor. There is a spring that puts tension on that idler pulley that’s connected to the motor bracket; we’ll give you a close-up shot of that so you can see where it connects in case you dislodge it.
Now the orientation of the belt will come down the side of the drum, wraps around the motor pulley, and then up over top of the idler pulley.
And when we rotate the drum you should see the blower fan moving. Now we’re ready to put the front panel back on. Make sure that we engage the slots on the bottom of the front panel with the two little tabs on the front cabinet.
And we’ll have to lift up on the drum a little bit to slide that front panel in; make sure that the front glides go into the drum opening.
Next we’ll reinstall those two Phillips screws, one on either side; make sure they’re tight. Next we’ll reinstall the guard for the drum. Next we’ll reconnect the wire harnesses.
And now we’re ready to put the main top on. Simply locate the slots in the back of the main top, slide them over the hinges, and remember to reconnect the ground strap, just pinch it closed to make sure it has a nice, tight fit.
Then simply snap the main top back in place. Reconnect the power and our repair is complete. Told you it was an easy job. Thanks for watching, and good luck with your repair.