Question about Dryers
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Posted on Jan 02, 2017
SOURCE: replacing thermal fuse on dryer
Would need to know what type of unit you have and a model number. On most Kenmore and Whirlpool models they are mounted on the heater box itself. Depending on the type it could be inside the rear panel, or mounted on the floor of the unit. On Frigidaire and other models it mounts to the element case in the rear. Maytags also mount to the element box on the top left inside. Most of the time they have a couple of different looks. On Whirlpool and Kenmore, they have 2 wires running to them, and usually sit away from the thermostat. If its inside the rear panel of these units, it will be towards the top by itself, and could be white or black depending on the age, round or sqaure. On GE, Frigidaire, and their look a likes, it will be small and round, with two wires going to them as well. Most of the time these are metallic in color. Maytags can be black or mettalic, and sit on the sides of the boxes. If this doest help you, please get me the model number and make of unit, and will tell you right where its at. Good Luck!!!!!
Posted on Feb 03, 2008
SOURCE: electric dryer wont start
Just replace the thermal fuse for now. You have gotten good use from this machine. But, this is also may be the beginning of the end. Thermal fuses are not expensive either. These things just go out at no uncertain times.
Posted on Feb 03, 2009
Unplug it, remove the back, 1. Hi Limit (small limit upper right hand side of this pic)
the most frequent problem if dryer RUNS but no heat AND you have
checked the element and found it to be good. 2. heater assembly.
3. 250f limit (if bad no heat, timer won't advance)
4. heater element
5. Fuse(350F), if blown(open) the dryer will NOT run.
(if you do not have a meter remove and inspect this heater coil for breaks).
6. control thermostat
7. heater (warms thermostat to shut it down faster for delicates)
Posted on Apr 13, 2010
The air flow past the thermal fuse is too hot. The air flow cools the heater coil area. Check the air passages from the lint filter to the heator coil housing for lint balls blocking the flow and letting the area around the fuse get too hot.
Posted on Dec 01, 2010
There are two thermistors (thermal sensors) in this dryer; one is the outlet thermistor located on the blower housing and the other is the inlet thermistor located on the heating element housing as an integral part of the high-limit thermostat.
These thermistors are negative coefficient type and monitors the dryer temperature on their locations according to their resistance which varies inversely with the temperature. The resistance drops as the temperature rises and rises as temperature drops.
One or both of the thermistors has an open connection or high resistance which makes the electronic control board thinks that the dryer temperature is low no matter how high it is. The electronic control board then doesn't cycle the heater relay and continue to turn on the heating element. The dryer temperature continues to rise and this blows the thermal fuse.
Make sure the thermistors are connected snugly. Remember that loose or open connection means high (infinite) resistance which makes the electronic control thinks of low dryer temperature. Measure the resistance of each thermistor then refer to the tables below. Replace the thermistor if the resistance reading doesn't comply with the table.
Let us know if you need further advice. Please accept the solution should you find it helpful and informative. Accepting the solution will not stop you from communicating with the expert. You can still communicate with the expert should you need further advice regarding the issue stated herein.
Posted on Mar 02, 2011
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Hello & Welcome to FixYa
If you have already cleaned the vent then the problem is with the Thermal fuse. When the thermal fuse goes bad it cannot be reset and replacing it is recommended repair. It is located on the blower wheel housing inside the rear panel to the exhaust duct. You can test it for continuity before replacing. Please get back to me if you have any other questions.
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