Model #11071804000 KENMORE Residential Dryer

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Question and Answers

Q:

What parts do I need to fix my dryer model 11071804000 that is not heating?

A:

First, I recommend verifying that the gas shut-off valve behind the dryer is fully open and that you have an adequate gas supply provided to the dryer.

The next step in troubleshooting this problem would be to pull the gas valve assembly observation plug in the front panel of the dryer and observe igniter in a heated cycle with the dryer running to see if it is glowing. If the igniter is not glowing, the most suspect component would be the thermal fuse. This fuse is located on the blower housing at the back of the dryer. Unplug the dryer to disconnect electrical power and shut off the gas supply. Remove the back panel and locate the thermal fuse on the blower housing. The location of this fuse is shown on the drawing of a similar dryer in the first image below. To test this fuse, remove one wire (with the dryer still unplugged) and measure the resistance across the leads of the fuse with a volt/ohm meter. If the fuse is good, you should measure near zero ohms of resistance (closed). If the fuse is blown, it will measure infinite resistance (open). If the thermal fuse is blown it will need to be replaced and I also recommend that you check the exhaust vent duct system for the dryer. A clogged or restricted exhaust duct system could cause the fuse to blow again just after replacing it. Check the flexible vent behind the dryer for kinks or clogs. Check the exhaust duct system and the outside damper for clogs or restrictions.

If the thermal fuse is okay, you can check the operating thermostat and the high limit thermostat in the same manner. I provided the wiring diagram for your model of dryer in the second image below.

If all of the above components are okay, then you could have a failed timer, a bad flame sensor, an open igniter, failed gas valve coils, a bad motor centrifugal switch or a wiring failure between components that could prevent the dryer from heating. The basic theory of the gas valve assembly is shown in the third image below. Understanding this theory is essential in diagnosing and repairing a heating failure in the dryer. This information may help you determine the cause of your failure.

If you need parts, you can order them from the Sears PartsDirect website.

If you need more help, resubmit your question with additional details.

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Lyle W -
Sears Technician
May 22, 2009
Q:

Why does my Kenmore gas dryer take so long to dry clothes?

A:

Since your lint screen was severely clogged, you could still have an air flow problem that is preventing your dryer from heating properly even though the lint screen is now clear. Normally a gas dryer must always be properly vented to the outside of the home. As a temporary test to check for an exhaust venting problem (and to test the operating thermostat), you can disconnect the flexible vent behind the dryer and allow the unit to vent directly into the room for a short test cycle using a medium load of laundry in the drum. Check the temperature of the exhaust air coming out of the back of the dryer. It should heat up to about 150 degrees and then cycle between 140 to 150 degrees on the high heat setting. It may take several minutes for the burner to ignite and heat up. Check the cycling temperature and monitor the drying performance with the vent disconnected. Following this test, reconnect the vent so that the dryer is properly vented to the outside of the home. This test should help you determine whether a restricted vent duct to the outside of your home is causing this dryer problem. Check the flexible vent and the vent duct to the outside of your home for restrictions if the dryer cycles properly and dries properly while exhausting directly into your laundry room.

If the dryer cycles at a much lower temperature than indicated above, then you could have a problem with the operating thermostat (Key 41 in the image below). To access this thermostat, unplug the dryer, shut off the gas supply and remove the back panel. The thermostat is located on the blower housing. If it needs to be replaced, you can order the part from the Sears PartsDirect website www.searspartsdirect.com . The part number is 3387134.

If the burner ignites and heats the first time but does not reignite on subsequent attempts, then you could have weak gas valve coils. Several other problems could cause long dry times. If you need more help, resubmit your question with additional details.

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Lyle W -
Sears Technician

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