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Have a gas dryer ..with. A burner high limit fault . Sign... Runs for 2 seconds and turns off

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  • Dryers Master
  • 5,323 Answers

DRYER OVERHEATING:

Heating Element
A defective heating element can make a dryer too hot. If the element partially shorts out, it can produce heat all the time, regardless of whether the dryer is calling for heat. Remove the heating element to inspect it. The coils should not be touching each other or anything else.

Other Causes and Conditions
Air Flow Problem
Dryers need good ventilation to work properly. If the vent is clogged it can make the dryer too hot. Clean all of the vent tubing thoroughly.

Cycling Thermostat
Although not common, a defective cycling thermostat can make the dryer too hot. The cycling thermostat is supposed to turn on and off the heat to maintain the proper temperature. If the thermostat is defective it may keep the heat on too long. The thermostat is not adjustable or repairable, it must be replaced.

Felt Seal
Most dryers have a felt seal at the front and rear of the drum to keep the heat inside the drum. If the felt seal is worn away or missing, the dryer may keep heating and make the dryer too hot. This is not common.

Blower Wheel
A defective blower wheel will not spin properly and will not vent the hot air, making the dryer too hot. Check to see if there is adequate airflow out of the dryer.


https://www.youtube.com/watch?v=3m5NZvY9V5Q

Posted on Apr 22, 2015

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6 Suggested Answers

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Posted on Jan 02, 2017

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Greg20
  • 149 Answers

SOURCE: Maytag Gas Dryer - Flame trips high limit Tstat

firstly..is venting blocked? disconnect venting and try it. if problem persists then replace hi limit. assuming what you just told me was correct.

Posted on Jun 11, 2009

  • 1 Answer

SOURCE: maytag dg303 gas dryer

change the flame sensor

Posted on Dec 11, 2009

localwonder
  • 6784 Answers

SOURCE: maytag mdg 4000bww wont heat igniter lights

On the gas valve, There are one or two coils (solenoids) used to open and close the valve to control the flow of gas. If a coil fails, gas will not flow and the dryer will have no heat.

The easiest way to diagnose a problem in the burner assembly is to observe the burner operation. Remove the small access panel at the bottom, front of the dryer, select a high temperature setting and start the appliance. Watch the burner assembly, shortly after starting the dryer the ignitor should begin to glow. Next you should hear the click of the gas valve coil and a flame should ignite. The flame should be mostly blue and it should remain on for a minute or more.

If the ignitor glows for several seconds (up to 15 seconds) and then goes out, the problem is probably the coils (solenoids). If the ignitor glows and stays on, then the problem is usually the flame sensor. If it ignites and then quickly goes out, it is most likely a problem with inadequate air flow.Test the coil for resistance using a multimeter. Set the multimeter to the ohms setting X10. Place a probe on each terminal. The multimeter should change from a reading of infinity to roughly 1300 ohms (+/- 150 ohms) when the probes touch the terminals. If the reading is infinity or substantially different from 1300 ohms, the solenoid should be replaced.

Additionally, The dryer uses multiple thermostats to regulate the temperature. When the temperature is higher than the preset limit of a particular thermostat, the thermostat breaks the circuit and the heater goes off. When the temperature cools enough, the thermostat closes the circuit again and the heat can come on.

Most dryers have a choice of temperature settings, therefore a separate thermostat is used for each setting. The selector switch or timer control then routes the circuit through the appropriate thermostat.

If a thermostat fails, it may prevent the heat from coming on, This happens because the thermostat does not close the circuit when the temperature falls below the operating temperature of the switch. It is a simple matter to test a thermostat; it should show continuity when the switch is cool and no continuity when it is warmer than its rated temperature.

A thermostat can also fail by being always on, no matter what the temperature. This switch would show continuity whether it was hot or cold. In this case, the heater would not shut off and the the dryer could dangerously overheat. As a safety precaution a second thermostat is used, This is called a thermal fuse. The power will be cut to the heating circuit if the maximum safe temperature is exceeded. In most cases, this is a one time fuse. The heater circuit will not function until the fuse has been replaced. Of course, it will be necessary to determine and repair the underlying cause of overheating or the fuse will just cut out again. The most common cause of overheating will be a clogged ventilation assembly. Be sure to inspect the entire ventilation Assembly for build up. This will cause issues, if obstructions exist.

The thermostats are usually grouped together. The are typically oval in shape and about an inch and a half in size. They may be on the blower housing, under the lint trap or inside the vent line. There should be two wires connected to each thermostat.

Label the wires and connections so that you can properly reconnect them later. The wires are connected with slip on connectors. Firmly pull the connectors off of the terminals. You may need to use a pair of needle-nose pliers to remove the connectors. Inspect the connectors and the terminals for corrosion. If either is corroded they should be cleaned or replaced.

To test the thermostats or fuse, set the multimeter to the ohms setting X1. Touch one probe to each terminal. You should get a reading of either zero or infinity. At room temperature, the thermostats should have a reading of zero. When the thermostats are heated to their limit temperature, they should switch off and you should get a reading of infinity. The fuse should be tested at room temperature for continuity.

Posted on Dec 16, 2009

  • 84 Answers

SOURCE: 1 yr old Amana dryer mod#NGD7200TW won't dry

You either have a clogged vent, or the gas coils need changed..

Posted on Jan 12, 2010

  • 1 Answer

SOURCE: SDG3606AWW Gas dryer will not dry

Your problem could be the gas valve coil packs, there are 2 coils that open the valve for the gas and after they heat up they could then fail and you have no gas.

Posted on Apr 23, 2010

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1 Answer

Gas furnace short cycles 2 minutes or less. Multiple troubleshoot steps and replaced components - no help. Any advice?


I did not see that your indoor fan motor started. Near your indoor fan motor there is a temperature switch that is called the fan delay relay. On a temperature rise the relay shuts a contact that turns on the indoor fan motor. If the contact does not close the high temperature limit will shut the gas controls off like your getting. A fan delay relay also allows the fan to run a minute or so to carry away the remaining heat in the furnace and help cool the furnace down. The fan delay relay is normally mounted in a recessed area in the fire wall of the furnace plate. I have also seen them on the top of the furnace heat exchanger. Anyway, the fan delay relay will probably not be available on a sunday, so temporarily until parts are available, try turning the thermostat fan from auto to on and try the furnace again. By turning on the fan to on the high temp limit will not shut you down again.

I have had high temp limit change there trip points, but you said you bypassed it and did the same thing.

Another cause could be using the wrong type of air filter. The new pleated filters sold block to much air flow. If air mass flow rate drops the difference in temperatur go up and when the difference in temperature go up, it gets nearer the high limit and causes it to trip. All pleated filters drop normal air flow through ducts by at least 35%. To make your air duct system work properly use the what is called throw away filters which cost about 1/3 the cost of the pleated filter. Remember to either clean or change the throw away filter monthly to reduce dirt being drawn into your duct system.
Hope this helps.

Feb 13, 2015 | Heating & Cooling

1 Answer

Gas dryer burner lights then go out after about 20 to 30 seconds then lights again is this normal


normally they dont cycle that often,sounds like a weak cycling or high limit thermostat thats heat sensitive from age,its on the burner housing the cycling switch is on the blower housing

Dec 01, 2012 | Whirlpool WGD5200TQ Gas Dryer

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Set thermostat to auto switch unit to heat. Unit lights runs for a minute then shuts off. Fault light blinks4 times, msg. Open high limit.


Check air filter for blockage, clean off flame rod found in the flame pattern of the last burner that ignites, check high limit switch with multimeter to see if good (found above the burner box). Make sure room air blower turns on within 90 seconds of first flame.

Nov 28, 2010 | Goodman CLQ36AR49 Air Conditioner

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I have a Kenmore Elite 110.73932102, runs but will not heat at all. I have gone through the troubleshooting and still can't figure out the problem. When I turn on the dryer the igniter does not glow. I...


Did you check the igniter? You never mentioned anything about checking, or replacing the igniter. The most common cause of a no heat problem on a GAS dryer is worn or blown igniter. These appliances are equipped with a burner assembly with electronic igniters. The following link explains a little theory about how these igniters work:

http://www.fixya.com/support/r401858-replacing_oven_igniter_gas_range

I know the link is for a gas range, but the burner assembly functions are nearly identical, as well as, the type igniters used.

If you are having ignition problems it is probably a simple matter of a weak or bad igniter. The burner assembly will ignite automatically as long as the gas valve, igniter coils and igniter are all functioning properly. It can take up to 90 seconds for the burner to ignite. As the igniter ages, you may experience longer ignition times.

Replacement parts can be purchased at any of the following websites:
searspartsdirect.com pcappliancerepair.com appliancepartspros.com repairclinic.com All these sites have competitive pricing, so shop and compare. The first three sites listed also have helpful exploded view parts illustrations to assist you with locating and properly identifying any parts you may need.

If you have any questions, please post back and let me know. I hope this information is helpful to you.

Oct 08, 2010 | Kenmore 74602 Gas Dryer

1 Answer

The dryer runs but no heat. The igniter glows when you start the dryer for about 10-20 seconds then goes out but the gas never ignites. I have tried bypassing the high limit fuse in the vent and have...


Hi,

If you are having problems with your gas dryer not heating the most common problem is that the ignitor goes bad. Even though it glows sometimes it is still not working properly.



if you dryer is gas check out this gas no heat tip....



If you have an electric dryer, you can have many different things that can go wrong causing the dryer not to heat.



check out this electric no heat tip...


heatman101
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Sep 11, 2010 | Roper RGX4634KQ Gas Dryer

1 Answer

Starts up and runs but there is no heat ,have gas supply but burner does not fire ,looks like i ahve voltage to all componets except to the hi heat thermostat


check the thermal fuse in the dryer vent conduit near the exhaust vent,then the cycling and high-limit switches/thermostats,your radiant sensor on the burner tube,your glow coil that ignites the gas,and finally your boost and secondary solenoids on the gas valve for continuity

Apr 24, 2010 | Dryers

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Kenmore 80 Series gas dryer starts with heat but very short time


Hello Friend, Your problem is very simple to fix. You're dryer needs a gas valve coil kit. To replace coils just remove front of dryer body and look below drum you will see the gas valve. The valve coils are located on top of valve (two little round black cylinders). It's simple, just remove the two screws from the little metal bracket that holds them down, unplug the wires from them and just lift them straight up off of the valve. Take notice that one has 3 wires and one has 2 wires. Just replace with new coils and plug wires back in and re-fasten metal bracket. Your dryer will run like new. Happy to help, Tim.

Jun 23, 2009 | Kenmore Dryers

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SDG3606AWW Gas dryer will not dry


Your problem could be the gas valve coil packs, there are 2 coils that open the valve for the gas and after they heat up they could then fail and you have no gas.

Feb 11, 2009 | Maytag SDG3606A Gas Dryer

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Maytag dryer serial#ldg5914aae


hi. thanks for the question. i would replace the 2 coils at the gas valve . thanks the appliance doc

Oct 05, 2008 | Maytag Dryers

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