Question about Kenmore 72622 Gas Dryer

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How do I test the ignitor? - Kenmore 72622 Gas Dryer

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Unplug the dryer,then unplug the ignitor and with a meter read it out,is it glowing?if not it could be the ignitor or the sensor or the thermal fuse located on the blower wheel housing,if the filter is on top remove the back panel and you'll find the fuse there,it's white and it's a 3392519,pull one wire off and check it with a meter,if it's bad you need to clean out the duct that the lint filter slides into,and clean out the vent line or the fuse will pop again,if the filter is inside then the fuse is in the front of dryer,take off the bottom panel,pull out the filter,remove the duct that the filter slides into and to the right top side of the blower wheel housing you'll see the thermal fuse on the left side,it might not be the 3392519 it could be a 3390719 but you need to send the model number to look it up,if the ignitor is glowing then you have bad gas coils or a bad gas valve.hope this helps let me know what you find

Posted on Oct 12, 2010


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Gas dryer runs but no heat. Took it apart cleaned all ducts and lots of years worth of dirt out of entire machine, looks brand new. Tested all components.

You did quite a bit of work. One other thing that controls the ignitor is called the flame detector. Its the black box looking thing mounted on the side of the big pipe the flame shoots into. Should be 2 wires going to it. A quick test to see if the ignitor comes on is to tie the 2 wires together. If you see the ignitor come on thats the bad part,

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The oven ignitor should have a resistance reading of about 3.2 to 3.6 ohms. If the readings are out of this specification or show open replace the ignitor. measure the resistance of the oven valve. The gas valve should have about 1.5 ohms of resistance. If the gas valve is OK, the control board is suspect. The ignitor needs 120vac to work.

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Continuity is great but did they perform an ampere test on the ignitor while the ignitor was hooked up inside the unit? An ignitor typically draws between 3 and 3.3 amperes any less then this would constitute a weak ignitor and the ignitor should be replaced if it is weak because it takes much longer to ignite the gas inside a dryer. An ignitor would always show conductivity except if the element were broken. So to start with wrong test was performed. Secondly there are also run thermistors and hi and low limit thermistors that act as relays that can also be checked in dryers by performing continuity tests on these thermistors click this link this is one of the schematics to your dryer k 550 is a thermistor and k 560 is a thermostat both should be tested as mentioned above. M 110 is the gas vavle which on other units the coil is replaceable but is only sold along with the valve on an LG which also has to be tested that power is going to the solenoid on top of the valve and that it is going to the ignitor. If you have any further questions message me back. I await your reply as to any further questions as well as your finds as well. Thanks again

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Have you checked the ignitor in the unit yet by doing an ampere test to the ignitor? Usually an ignitor will draw between 3-3.3 amps. If a reading was lower then this it would mean that the ignitor is either weak or not working. Part number 1374 is the ignitor shown in this diagram click here . Even if the ignitor were at 2.9 you would still replace the ignitor because this would constitute a weak ignitor as well. If you perform the test and the ignitor shows a positive reading message me back for further diagnosis. And if you have any further questions message me back those as well. Please also remember when our chat has fully concluded to rank how this opinion has helped in your appliance situation Thanks Rick

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1 Answer

I have a wall oven and the power goes on but no gas smell or anything no flames no nothing i think its the ignighter what do u think please help

Yes, ignitor problem. Some ignitors are easy to replace and some are hard to install. If you know how to test for voltage at the ignitor and a pretty handy, you can replace the ignitor yourself. Call your parts house and order a new ignitor using the model number. Ask if they have a cheaper generic replacement. Replace the ignitor and test. So far, every gas range I have worked on with this problem, has been a bad ignitor. You can also have a bad oven control, sensor, thermostat, valve, or wiring problem. Unlikely however. Good Luck, Appliance Specialists.

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You have to use a voltmeter to test the circuit. You must connect a voltmeter to the leads that go to the ignitor, and then start the dryer. If the ignitor is getting 120 volts, but not lighting, then you need a new ignitor.

If you do not feel comfortable doing this test, you could simply replace the ignitor and hope its the problem

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You can to the ignitor from the back panel. Remove the back panel screws and away you go. Thank you for using FIXYA.COM please rate

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Can you give us a hint as to a make and model? Check the reverse side of the access panel within the wiring diagram for diagnostic codes.

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