Grandpappyc October 05, 2023 for Model Number DE7500 I am having problem that the timer won't run in auto. I believe it is the cycling thermostat. An answer says to check for continuity on "the two lower wires". Doesn't make a lot of sense to me. There is a purple & jumped to another terminal, white w/red, light blue and orange. A wiring diagram or a pinout for the thermostat would be awesome.
1 Answer GrandPappyC, the orange wire running from the timer to the cycling thermostat would need to be tested for continuity and inspected for a loose connection. If the wire is good, the most likely cause of failure would be the cycling thermostat WP307249. The orange wired terminal is normally open and closes when the heat is cycled off during operation, allowing voltage to go to the timer. In this case, the contact is likely not closing properly. Read More...
Chris June 14, 2022 for Model Number LDE8300ACW My dryer stopped heating, but continues to tumble and blow air normally. I have checked the hi limit switch and the two thermal fuses and all show continuity. When checking the cycling thermostat (wp307249) I get continuity between the outer contacts at room temperature, and open circuit at high temperature. The inner contacts however always show high resistance (approx 50k ohms). Is this correctly functioning? Are there any other components I should be testing?
1 Answer Hello Chris, yes that is how it works, next check that there is 240v at the dryer's terminal block Black L1 to Red L2 with the dryer running, next check the heating element for correct resistance about 10-12 ohms, lastly if all checks are good, check that the heater is actually getting 240v at its terminals while running. Read More...
Gaby July 29, 2017 for Model Number MDE9206AYW Somehow a plastic bag got stuck in vent, so dryer overheated and clothes was wet and hot. Cleaned out vent-not a problem anymore. Problem: dryer on timer, heater ok and clothes drying, but stops about 40 minutes later. Timer not completed and temperature is very hot. I'm thinking thermostat but which one: cycling or hi-limit? Both thermostat have continuity at R.T.
1 Answer Gaby, Check the vent where the blower wheel is located and the blower wheel to make sure that there is nothing clogged in it. If this checks ok then this will likely be a faulty cycling thermostat. Read More...
Bickabah December 10, 2013 for Model Number MDE6400AYW My dryer no longer advances on Auto-Dry cycle. When I set the timer to a timed drying cycle, it works fine. The timer advances for 60 min. and shuts off. The heater element should be fine, because I recently repaired a melted wire to the heating element. I've also checked the vents and they are clear. Is this the thermostat I need to purchase if I find that the current thermostat shows no continuity? Is this thermostat the same as an "internal bias" thermostat? Thank you.
1 Answer Bickabah, Yes, the WP307249 regulating thermostat is the thermostat you'd need to check first. It does have an "internal bias heater" that should have a resistance of 2400ohms resistance (across the two small, brass colored terminals in the center. It is also a SPDT(single throw, double pole) switch. when the temperature is below 150 degrees the circuit travels across the two lower terminals across from each other and the heater circuit is completed. When the temperature is reached the thermo disc "opens" and the circuit "switches" between the common lower terminal and the upper terminal on the dual side, this supplies 120 VAC to the timer motor and advances the timer until the thermostat resets and starts the heat cycle again. If you're sure the vent and hood are clean and clear, no kinks etc. and the thermostat checks correctly, You'll need to check for a "weak" hi limit switch WP303396 or an air leak in the drum seals or blower assembly. Read More...
Jim April 19, 2013 for Model Number maytag de7500 When using dryer in auto dry or perm press mode, timer won't shut off on it's own .Dryer dries fine. On fluff dry, timer will advance and shut off on it's own, but it also is heating in fluff dry mode. Shouldn't fluff dry, be operating without heat? Is it a bad timer, or a bad cycling thermostat? Thank you!
1 Answer Jim, Your first check should be the heating element WPY313538 or WPY308612 (depending on serial number) if it is shorted or grounded it will continue to heat on all settings, including air fluff, and this could cause the dryer timer to not advance in the auto cycles. The dryer has to heat properly in order for the timer to advance. Read More...
Norman January 01, 2013 for Model Number MDE9206AYA How do I test the Multi-Temp Cycling Thermostat with Internal Bias Heater?
1 Answer Hello Norman. The two large terminals on the thermostat WP307249 should read closed for continuity and the two small should show an ohms resistance value. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html Read More...
Ron M. November 26, 2011 for Model Number DE 7500 Maytag Electric Dryer The timer stops on the auto cycle just before turning off, and the dryer continues to operate. The manual timer on the bottom of the timing control works just fine. Is the problem the timer or a sensor that I am missing?
1 Answer Hello Ron. Check and make sure the vent is clear and not clogged or kinked. If it is good, and the timer turns until the timer reaches off, you will need to replace the timer WP306534. Hope this helps. Read More...