My Maytag dryer does not heat. The ignitor glows hot, and the coils engage (click) which lets the gas ignite, but goes out after about 10 sec. So I figured it to be the thermo fuse at the burner, however, after diconnecting the two wires, it has continuity. Could one of the two coils be bad, letting the flame go out?

SOURCE: Maytag gas dryer model#NDG2330AWW heating problem

your gas coils are bad. they open up for the first cycle but fail to after. Replace your coils and this will solve your problem

Bailey's Appliance Service

• 222 Answers
• Posted on Apr 29, 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.

SOURCE: The heat turns off after 3 seconds of flame.

There is a flame sensor failure.

Here is the ignition sequence for a furnace. This will help you understand what is happening/not happening.

Thermostat calls for heat.

draft inducer motor (DIM) starts drawing draft through heat exchanger.

Pressure switch detects proper operation of DIM, and sends signal to board to begin ignition.
(it detects negative pressure)

Ignitor starts ignition attempt and gas valve sends gas to burners.

Upon ignition, flame sensor detects flame and sends signal to board stopping ignition sequence and continuing gas flow for heat mode operation until thermostat is satisfied.

During this sequence the blower motor is brought on, and by using a series of temperature limit switches, the system assures that the unit is operating properly.
(If the blower is not operating, or the airflow is inadequate, the heat exchanger will overheat and trip one or more temp limit switches.)

There is also a "rollout" switch that detects improper flame pattern "rolling out" into the controls compartment.

Now, to apply that to your situation.

If the flame sensor does not sense flame, it shuts down the furnace to prevent a dangerouse gas build up.

With most modern glow coil ignition systems you have one of two failures.

1) the flame sensor is bad and needs to be replaced.

2) the control board is not proccesing the signal from the flame sensor and shuts the system down. In that case the board would need to be replaced.

There is a possibility that a temperature limit or roll out switch is breaking the curcuit, but that would be quite unusual to happen consistantly at three seconds.

Unless you have the ability and tools to test the snesor and board, the next step would be to replace the sensor first, and then the board if that does not fix it.

Testimonial: "very helpful."

SOURCE: maytag gas dryer will heat for about one minute

The gas coils on the gas valve have gone bad. These are located on the gas valve and will be 2 solenoids. Replace them both and should be able to get as a set. 12001349 should be the number and cost less than 60.00 for the set. Good luck and thank you for using Fix Ya.

SOURCE: gas maytag dryer not heating up

check the thermal fuse in the dryer vent duct to be open,then if not the flame eye" radiant sensor" or the high-limit thermostat both on the burner tube if the sensor doesn't see(sense) a flame the gas valve will stay shut,then check the gas valve coils,both the BOOST and SECONDARY coil valves on the gas valve body as these can open up and not gas into the burner