Question about Maytag Neptune MDE7500AY Electric Dryer

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We have a Maytag Electric dryer that is not heating up totally. Removed the vent tube and seemed to help but I check the Ohm's on the thermometer and was working. Tsted the col for ohms and at the RX1 setting it was at approx 2 - 3 ohms. Does this mean it is working?

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Hi, If your resistance is 2-3 Ohms, then your element is on it's way out . It needs to be replaced. The resistance should be in the range of 7-20 Ohms on a 240 Volt dryer heating element with the multimeter set at RX1. Good work finding that.

There are some additional reasons a dryer will not dry, have no heat, or cause the element to burn out prematurely.

1 If the exhaust vent run distance is too long. i.e. more that 15 feet the heating element life will be shortened Why? Because in a long vent run the vapor from the most clothes condenses on the sides of the vent hose and lint sticks to it. This lint accumulates and reduces the internal diameter of the hose. This increases air friction and the element runs at a higher temperature, etc. etc.
Solution: Clean the vent system out, or replace with a shorter system, if possible. There is an accessory fan available that can be installed that allow you to have a very long exhaust vent run. See Link
http://www.hvacquick.com/products/residential/Dryer-boosting/dryer-booster-fans/fantech-dryer-boosters?utm_source=google&utm_medium=cpc&utm_term=dryerboost&utm_campaign=fantech

2 Exhaust vent hose folded or squeezed almost or completely shut at back of dryer. This ocures when the machine is too close to the wall pinching the hose. No air carrying the moisture leave the dryer.
It can get hot and after the cycle is done. The clothes are still wet. Solution: Pull out dryer and unfold hose.

NOTE:
Don't use a dryer without a vent hose attached. The dryer will pull the hot air with lint in it back into the machine. Over a period of time this lint can accumulate in the machine and cause a "lint fire" Lint fires inside a dryer sometimes turn into house fires.

Hope this helps,
Happy New Year
Mark

Posted on Jan 01, 2011

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If you plan to try to repair the problem yourself, then the first thing you want to do is unplug the dryer from the electric.
Remove the back of the machine and try to locate the air tube going from the blower to the drum. Normally inside the air tube you will find the heating coil and the thermostats/thermistor.
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This is a classic example of a clogged vent tube. Everyone cleans the lint trap, but seldom checks the tube that connects the dryer's output to the outdoors.

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