Question about Maytag Atlantis MDE7400AY Electric Dryer

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Dryer not heating properly...when nothing in dryer, sensor says clothes are damp..i rubbed sensor and closed door & turned on dryer and sensor said clothes are wet..remember nothing is in dryer..does sensor control heat temp?? i replaced breaker with ne one and still not heating properly..almost like it's stuck in low heat mode..

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  • timothy_rasc Nov 09, 2010

    The dryer is not cutting off pre-maturely..the dryer is not heating up to proper temp. Sensor is clean..It started working fine and then it was like the heat mode was in low heat only..

  • timothy_rasc Nov 12, 2010

    ordered and replaced the control thermostst..still just super low heat only..could heat element be "partially" out?? possibly the thermal fuse?? i also thought about the temp switch itself..thanks for your professional opinions..

  • timothy_rasc Nov 12, 2010

    i replaced the breaker 1st thing before i contacted you..i replaced the female 4 wire plug and installed a 3 wire plug..i was told to put the black wire in the middle and the white on right and solid copper(which i believe is ground) on the left..might it be wired wrong??..i always thought the solid copper(or possibly ground) should be in the center..??..



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There is a capacitor on the dryness control board that is trying to build up a charge, but when wet clothes create a short from one of them bars to the other, this charge is released to the frame of the dryer, therefore discharging the capacitor. As long as the capacitor charge is low, the control knows the clothes are wet. As the clothes become dryer, they short the bars fewer and fewer times. Once the capacitor charge builds to a certain level, the control knows the clothes are mostly dry, and it advances the program to the final timed portion, usually less than 20 minutes, some of which is a cool down portion to reduce wrinkling. If your dryer is shutting off after only 10 minutes, that means the control capacitor is never getting discharged. This can be due to a few different reasons: 1. Sensing bar wire is disconnected or broken; 2. Load is not large enough (remember the bars must be contacted repeatedly); 3. Bars are "coated" by fabric softener build up and need to be cleaned with Windex or 409. 4. Defective control board. 5. Airflow is restricted and moisture can't escape the drum. 6. Corrosion built-up on sensing board connection.(yank out the board and clean the contacts that sometimes is all it takes) Address the airflow condition and load size. Clean the sensor bars and make sure the wires are all connected securely.

Slopefront dryer tip and manual

Posted on Nov 09, 2010

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  • Dan Webster
    Dan Webster Nov 09, 2010

    I suspect your control thermostat is bad.
    It mounts on the blower housing

  • Dan Webster
    Dan Webster Nov 09, 2010

    This thermostat has 4 wires. 2 big wires and 2 smaller wires. The 2 big wires carry the current that goes into the element. The 2 small wires come from the dryer timer. They operate a small heater inside the thermostat. When it gets heated up it shuts down faster for knits and permanent press cycles. Yours has probably failed. Many have.

  • Dan Webster
    Dan Webster Nov 12, 2010

    If the control is new and all components check ok then you may have a 30 amp 2 pole circuit breaker going bad.



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A dryer moisture sensor can stop working without notice, until you notice your clothes being over dried or still wet at the end of the cycle. It is a good practice to test the dryer moisture sensor periodically. There are two types of moisture-detecting sensors for dryers. Once you understand how they work you will see how to test each one.
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