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Roper dryer will not come on? - Roper REX4634KQ Electric Dryer

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The most common cause of a dryer that will not turn on, is a blown thermal fuse, defective door switch, bad power cord, or a broken drum belt.

If the voltage at the wall receptacle is correct, check the voltage again at the terminal block where it connects to the dryer. Make sure you UNPLUG the dryer and remove the the small access cover where the power cord is installed. You should read 220-240VAC at the wall receptacle and terminal block. If BOTH readings are good, the problem is INTERNAL to the dryer. If bad at the receptacle, you need to double check the power source that feeds the wall receptacle. Some homes use two separate 120VAC breakers instead of one 220-240VAC breaker. Make sure the breaker(s) is not tripped. If the reading is normal at the wall receptacle, but bad at the terminal block, replace your power cord.

If the problem is internal, the thermal fuse will be mounted on the blower fan housing. It is a small plastic looking component (usually white in color) with two wires attached to it. Disconnect the wires before taking any resistance checks. If the fuse is good, it should read something close to zero ohms. If bad, you will read an infinite reading. These fuses DO NOT reset and must be replaced if bad.
The thermal fuse is usually located on the blower fan housing inside the dryer. On the model number you provided, the thermal fuse is accessed by removing the toe panel directly below the dryer door. The blower fan housing is located directly behind the panel, with the thermal fuse mounted on top (refer to parts drawing at the website(s) provided below.

NOTE: If the thermal fuse is blown, it generally blows for a reason. This could be an indication that you have a clog in the ventilation system, causing the dryer to overheat. Do a thorough inspection of your dryer interior and the entire exhaust vent from where it exits your dryer to where it exits your home, BEFORE replacing any defective parts. Failure to do so, may result in repeated failures of the same parts.

If the dryer belt is broken, the dryer may not run. Some models have a broken belt switch that will shut the dryer off when the belt breaks. This is determined by the model number.

Another cause of a dryer that will not turn on, is a broken door switch. An easy method to test the switch is to open the door and press by hand. If the dryer drum light is working, you should be able to toggle the light on and off. If the switch is found to be defective, it must be replaced.

Replacement parts can be purchased at any of the following websites:

All these sites are reputable and have competitive pricing, so shop and compare. The first three sites listed also have helpful exploded view parts illustrations that you can use to locate and properly identify any parts you may need.

These solutions are not all inclusive, but are the more common failure items. The more expensive options are a defective timer or drive motor. If you have any questions about any of these repairs, need troubleshooting advice or need instructions on how to access any of these components, please post back and let me know. I hope this helps you.
NOTE; If the model number you listed is correct, all the heating circuits are located in the BACK of the dryer and can be accessed by removed the rear panel.

Posted on May 18, 2011


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