Question about Dryers
The following link explains how to troubleshoot a dryer no heat problem:
First, begin by unplugging the dryer and verifying the voltage at the wall receptacle. You should read 220-240VAC across the two Hot terminals (left and right slots). If the voltage is incorrect, check to make sure you don't have a breaker tripped. Some homes use 2 separate 120VAC breakers to provide power to the receptacle vice using one 240VAC breaker.
If the voltage IS correct, leave the dryer unplugged and remove the cover plate on the terminal block in the back of the dryer (this is where the power cord is installed). Plug the dryer back in and take a voltage reading across the two hot (RED and BLACK) wires at the terminal block. You should read 220-240VAC. If the voltage is good, you have an internal heating problem. If the voltage is bad at the terminal block, but good at the receptacle, you have a bad power cord.
The reason a dryer will still run if the input voltage is incorrect, is because the drive motor only uses a portion of the 220 service. The motor runs off 110-120VAC, while the heating circuits require 220-240VAC. So, if you are missing 1/2 your input voltage due to a tripped breaker or bad power cord, your dryer will exhibit these symptoms.
If you determine the problem to be internal, the heating circuit can be accessed by simply removing the back panel of the dryer. The heating circuits will be located on the right hand side. The Heating Element is located inside the heater box. The Thermal Cut-Out (TCO) will be located on the outside of the heater box on the end opposite the heating element terminals. The Hi-Limit Thermostat will be located adjacent to the heating element terminals. If either the TCO or Hi-Limit Thermostat are determined to be bad, replace both components at the same time. That is why these components are commonly sold as a set (part number AP3094244). Failure to do so may result in premature failure of any parts you replace. The heating element part number is AP3094254. All these parts can be found at appliancepartspros.com.
If you have any questions, please let me know. I hope you find this information helpful.
Posted on Aug 02, 2009
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Posted on Jan 02, 2017
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