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No Heat
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.
Open bottom panel and observed back left drum roller wheel wobbling and obviously making the loud rumbling banging sound. Search goggle for Amana model part -- found partsellect.com, and read the list of other DIYs:
Take off the lower and upper front panels (two screws each);
Remove the front drum glide holder (four screws. Careful here because of the two wires to be removed for door open off switch;
Pulling drum forward only enough so the bad roller wheel would come off shaft after removing shaft snap ring keeper;
Grease new roller hole and old shaft then place the new wheel roller on shaft;
Replace all items back after cleaning lent off.
Note: Snap ring was a bit tricky (need snap ring pliers)--make sure it is clipped back all the way on the shaft after new wheel is installed. Also, I thought it was a good idea to put something underneath the dryer drum to support it while it was slightly pulled out -- a block of wood, etc. I found a spot remover plastic bottle that wedged up to support the dryer drum enough to take pressure off the belt during wheel replacement.
Removed top of dryer and front panel. Keeping the front door closed I was able to start the unit and observe if the gas was igniting to heat the unit. Found that no flame was present. Examined the ignitor (found the locatino after utilizine this website parts diagram) and noticed it was cracked. Ordered the new part and it arrived two days later. Simple installation and ta daaa....ignitor works, hot dryer again. *Only reason it took over half an hour was because I cleaned out all the internal vents while the unit was opened. Basic mechanical abilities required here but remember to unplug the unit while working on it!
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!
gas dryer would fire, but shut down before getting warm enough to dry clothes
Removed lower front cover of dryer, located coils, removed old coils by disconnecting the wires and removing the hold down bracket screws. Pulled the old coils out replaced them with the new coils by aligning the index pins on the coils with the holes in the bracket then reattached the bracket and plugged the wires into the new coils. Then closed the cover on the front of the dryer. Dryer now ignites and stays on to heat up and dry clothes.
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.
Door safety switch would not close keeping dryer from running
Shut off or unplugged dryer for safety.
Slipped thin blade putty knife up under bezel of switch to unlatch from the panel and pulled forward to remove the swwitch from the dryer. Unplugged the quick connect terminals (3) from the old switch and plugged them onto the new switch. one of the terminals had gotten quite hot and darkened the insulation so it was replaced with one that was supplied with the switch. that was a cut, strip, crimp process. Placed the new switch into the panel and snapped into place.
Dryer making a lot of noise and clothes were getting very hot
Remove the 2 screws at bottom of front panel, remove lower panel. Then remove the two screws at bottom of front door. Lift door forward so spring hooks can disengage from the top panel. remove door, disconnect the 5 wires to the door latch and light. remove the two screws at top of dryer to lift up top panel. Remove 4 screws at the front holding the drum. Disengage the belt from the tension pulley and remove drum. Replaced both roller wheels at the rear of the drum( one was broke). Then remove the screws (about 6 holding the plate in front of the blower wheel. Use a wrench to hold the nut at the back of the motor and a scocket wrench to remove blower wheel. (The Blower wheel was broken from the shaft and was spinning freely). Then do it all backwards to re assemble. i spent more time cleaning the lint from the inside than I took making the repair!
remove bottom section under door 2 screws remove door 2 screws remove switch by squeezing tabs install 2 new female ends on wires supplied with switch . put switch back in plug in wires .
Dryer would only tumble for ~15 min then stop. During this time it would be really loud. Turns out to be a bad Motor. To replace 1) Removed bottom kick panel by removing 2 screws. 2) Then removed upper front cover by 2 additional screws. 3) Disconnected thermostat (marking location of wires on paper). 4) Removed blower housing (3 screws)undid the rib belt from the drum by pushing the pulley wheel up so the belt could be loosened and removed from motor. 5)Removed the front cover of the dryer opening by removing 2 screws. 6) Lifted up and then puled it out to expose the drum. 7) Removed the drum w/belt from the dryer exposing the motor. 8) Removed 2 screws from the motor and disconnected the plug from it. Slid it all the way out. 9) Need to remove (3 screws) the metal faceplate from motor to access the blower wheel (plastic). 10) Unscrewed the plastic wheel and removed 2 screws to remove the motor from the frame. reversed the process for reassembly. Sounds tougher than it really was - only took 30-45 min. Suggestion - write down on paper location of any wires you disconnect - makes reassembly very easy. Also recommend vacuuming any lint in the dryer while it is completely accessible.
Sensor is in the front lower left. Gas off, electicity off. Removed two screws for the filter, pry/lifted the top up and taped it too the overhead cabinet, removed two screws inside top of front panel, lifted pandel with door closed staight off. Two screws to remove the flame sensor braket. unplug the old sensor install the new one and reverse everything. With others suggestions I purchased temperature switches etc. but the radiant flame sensor was the problem. I now have some spare switches for future. Excellent company and very quick service. Oh, Sears wanted 200.00 just for the service call, I live rural.