Rank: Member
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Joined: 12/30/2014(UTC) Posts: 2
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Dryer quit heating but runs.
Thermal cutoff was open, so I replaced it and the high limit thermostat.
Worked great for a few minutes--then quit heating again. Thermal cutoff is open again.
Have checked the thermal fuse--has continuity, 240 v coming in, heating element has continuity.
Did I get a bad part? Any ideas?
Thanks!
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Rank: Advanced Member
Groups: Senior Expert
Joined: 2/29/2008(UTC) Posts: 19,638
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[COLOR="Blue"]Did I get a bad part?[/COLOR] I doubt it.
When you replaced the cut-off did you check anything else in the heater circuit? If not I would start by checking to see if the element is grounded with a meter.
If the heater element is grounded it can run too hot. This can blow the cutoff right away as even the hi-limit thermostat cannot regulate the temperature. |
THIS FORUM IS DEAD!!!!!!! |
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Rank: Member
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Joined: 12/30/2014(UTC) Posts: 2
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Originally Posted by: denman [COLOR="Blue"]Did I get a bad part?[/COLOR] I doubt it.
When you replaced the cut-off did you check anything else in the heater circuit? If not I would start by checking to see if the element is grounded with a meter.
If the heater element is grounded it can run too hot. This can blow the cutoff right away as even the hi-limit thermostat cannot regulate the temperature. I will check it --thanks very much! I am also going to have to crawl under the house and make sure the vent is not getting clogged. I disconnected the vent hose, replaced the cut off and both thermostats and it is running now ok. Thanks again. dls
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Rank: Member
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Joined: 3/12/2015(UTC) Posts: 2
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How do you check if the heater element is grounded? I have the same problem.
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Rank: Advanced Member
Groups: Senior Expert
Joined: 2/29/2008(UTC) Posts: 19,638
Thanks: 1 times Was thanked: 11 time(s) in 11 post(s)
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Unplug the unit Unplug both wires at the heater element. Measure across the element, should be in the 8 to 12 ohm range. Then measure from each side of the element to it's case, both should be infinite ohms |
THIS FORUM IS DEAD!!!!!!! |
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Rank: Member
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Joined: 3/8/2015(UTC) Posts: 4
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Originally Posted by: denman Unplug the unit Unplug both wires at the heater element. Measure across the element, should be in the 8 to 12 ohm range. Then measure from each side of the element to it's case, both should be infinite ohms If the heater element is grounded then what do you don't? Replace it?
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Rank: Advanced Member
Groups: Senior Expert
Joined: 2/29/2008(UTC) Posts: 19,638
Thanks: 1 times Was thanked: 11 time(s) in 11 post(s)
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THIS FORUM IS DEAD!!!!!!! |
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