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Maytag Neptune Dryer, Model# MDG6800AWW (gas dryer) does not heat up. It gives the code ''PF'' on the display, it tumbles and blows air but no heat. Could it be an easy fix by replacing the 1. igniter assembly? 2. thermal fuse on blower housing? 3. gas dryer sensor for igniter and flame? Any help would be nice - thanks in advance!

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SolutionGuy
  • 331 Answers

SOURCE: Whirlpool Gas Dryer

Yes, that is most likely the problem. Once the glow bar igniter glows so hot, the switch opens & drops power to the igniter.(The radiant sensor has continuity while cold & open when a flame is present.) At the same time, by opening it redirects power to the valve coils allowing them to open & gas flow to the burner assembly. The dying glow of the igniter fires the gas. However, if your igniter glows, the radiant sensor is good. In this case, you'd need to replace the gas valve solenoids.

Posted on Aug 01, 2007

aborcass
  • 2651 Answers

SOURCE: Maytag Neptune Gas Dryer "do" code

sonds as if you have abad door switch assy, uint not reconozing the door closed

Posted on Nov 05, 2008

astruttman
  • 45 Answers

SOURCE: dryer blows house fuse --keeps tumbling--no heat

If the dryer turns on, drum spins, but you have no heat, any of the following components could be bad:

Heating Element
Thermal Cut-Out
Hi-Limit Thermostat

All these components COMBINED, should cost less than $100. If you fix it yourself, you will avoid the additional cost for labor.


If the dryer isn't blowing ANY air at all, but the drum still turns, you may have a bad blower fan assembly inside the dryer. Or, the blower fan assembly may be clogged.

Now, if your dryer performance has been failing (i.e., clothes taking longer to dry), it may be for a reason. You need to ask yourself when the last time you cleaned the dryer ventilation. If you can't remember, or if it has never been done, this can contribute to the dryer failing. All dryers need proper air flow in order to dry properly. If the ducting becomes clogged, the heating circuits will actually overheat and eventually fail. This usually results in the Thermal Cut-Out (TCO) blowing or the Heating Element failing or BOTH. When these components fail, they must be replaced. Remove the dryer hose from the back of the dryer and inspect it thoroughly from where it leaves the dryer to where it exits your home. It should be clear with no kinks or clogs. If your vent line runs under a crawl space make sure it is suspended above the ground and has no sags where lint could collect. RULE OF THUMB: The SHORTER and STRAIGHTER the vent duct, the BETTER. After you inspect the vent ducting, turn the dryer on and make sure you have forceful air flow coming form the dryer. This will prove that your blower fan is working properly or not. Since you stated that your dryer is not currently heating, the air will be cold, but you should still have some force behind it. If the air flow is weak, you need to clean the duct work INSIDE the dryer. It is important to keep a dryer checked routinely. I recommend once per season (that's 4 times per year). Dryers are the cause of many house fires. These fires are due to lint accumulations inside the unit catching on fire. A little preventive maintenance can prevent significant problems in the future.
Getting to the heating circuit to determine if the components are good or bad is the next step. If your dryer has the lint screen on the top of the unit, you will need to remove the back panel of the dryer to expose the heating circuits. If the dryer has the lint screen in the door, you will need to remove the lower kick panel under the door by using a putty knife to release the retaining clips. They will be located along the seam in the front about 2 inches in from each side. You have to remove the entire front panel on some models. This is accomplished by lifting the dryer top and removing the screws that hold the front panel in place.

NOTE: The heating circuit should be troubleshot with the dryer UNPLUGGED. Dangerous voltages are still present with the dryer turned off. Resistance readings are as follows:

Heating Element (located inside heater box) – remove the two RED leads from the ceramic terminals on the heating element and take a reading across the terminal points. It should read 9 - 13 ohms.

Thermal Cut-Out (TCO) (mounted to the heater box.) - unplug wires and take reading across connector tabs. Reading should be 0 ohms.

Hi-Limit Thermostat (mounted to the heater box, closest to the heating element leads) - unplug wires and take reading across connector tabs. Reading should be 0 ohms.

If any of the above readings are abnormal, replace the component. NOTE: If the TCO or Hi-Limit Thermostat is defective it is highly recommended by most manufacturers to replace BOTH components at the same time. They are often sold as a set.

Posted on Jan 11, 2009

SOURCE: maytag gas dryer not heating

You may want to disconnect the vent from the back of the dryer and try it. Flame rollback will cycle the burner off by the high limit.

Considering what you have already done to it, if the problem still exists you probably have bad coils on the gas valve. make sure you replace them as a set.

The thermal fuse is a one time device. If it opens, the burner will not come on at all.

Posted on Apr 29, 2009

Ben-mrfixit
  • 68 Answers

SOURCE: where is the thermal cupple

Here use this link! hope it helps....http://www.repairclinic.com/0100_17.asp

Posted on May 05, 2009

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