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electric dryer shut off/trips circuit breaker

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I have replace the heating element,which had a broken coil.Also replace dryer cycling thermostat,dryer thermal fuse and dryer thermal cut-off-kit.I

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Old 01-03-2013, 09:13 PM
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Default electric dryer shut off/trips circuit breaker
Model Number: TEDS74ePQ1   Brand: Estate   Age: 1 - 5 years   

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I have replace the heating element,which had a broken coil.Also replace dryer cycling thermostat,dryer thermal fuse and dryer thermal cut-off-kit.I clean out dryer throughout. dryer has been working great for the last three weeks but now is tripping my circuit breakers after running for about 15 minutes,I check to see if unit is hot or overheating but no,I also check to see if circuit breaker is hot but no. Please let me know if you could give me some advise. Thank You model#TEDS740PQ1


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Last edited by smilley1 : 01-04-2013 at 05:43 AM. Reason: correct model number
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  #2 (permalink)  
Old 01-04-2013, 03:28 AM
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I cannot find any info on the given model number.
Please check it.
Are you sure it that the "e" is not a 0.

This may be difficult to troubleshoot.
If you can get hold of a clip on amp-meter, then you could monitor the current to the unit. Then if you see a a current spike just before the breaker trips, you know that something is heating up in the unit and then shorting out. Also it will let you see what the current draw is.

I would check the heating coil.
Unplug the unit and both wires at the heater.
Measure it, it should be 8 to 12 ohms.
Then measure from each heater connector to the frame/ground, both should be infinite resistance.
My thinking here is that the heating coil has grounded out in such a way that it still heats up but is shorting to the frame and drawing too much current.

Could also be that the breaker is toast.

When it blows the breaker can you reset the breaker and the unit will start right away.
If you have to wait a while it could be a problem with the motor overheating and tripping it's in thermal thermal cut-off. This is a long shot as the motor is not only overheating but also shorting out when it overheats.
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Old 01-04-2013, 05:56 AM
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Default electric dryer trips circuit breaker after 15 minutes of running

Quote:
Originally Posted by denman View Post
I cannot find any info on the given model number.
Please check it.
Are you sure it that the "e" is not a 0.

This may be difficult to troubleshoot.
If you can get hold of a clip on amp-meter, then you could monitor the current to the unit. Then if you see a a current spike just before the breaker trips, you know that something is heating up in the unit and then shorting out. Also it will let you see what the current draw is.

I would check the heating coil.
Unplug the unit and both wires at the heater.
Measure it, it should be 8 to 12 ohms.
Then measure from each heater connector to the frame/ground, both should be infinite resistance.
My thinking here is that the heating coil has grounded out in such a way that it still heats up but is shorting to the frame and drawing too much current.

Could also be that the breaker is toast.

When it blows the breaker can you reset the breaker and the unit will start right away.
If you have to wait a while it could be a problem with the motor overheating and tripping it's in thermal thermal cut-off. This is a long shot as the motor is not only overheating but also shorting out when it overheats.
------- Reply from owner of electric dryer

The unit does start immediately after I reset the breaker,I ran unit on the low heat cycle and I had no issue ran the whole cycle with heat,just to be clear I had this breaker installed new with a baseboard heater on the same line,could this be a problem if they are running at the same time,I will check the shorting problem,and thank you for your prompt replied.have a happy new year.David
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Old 01-04-2013, 08:53 AM
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I had this breaker installed new with a baseboard heater on the same line,could this be a problem if they are running at the same time
Yes it could you may be pulling too much current.

Below is an install sheet.
https://www.whirlpool.com/digitalass...%208577187.pdf
Since I could not find anything for a TEDS74ePQ1, it is for a TEDS740PQ1.

It calls for a 30 amp dedicated line.
Lets say that the heater is 10 ohms this will then pull 24 amps, then on top of this you have the amperage required to run the motor so you do not have many amps left.
Turn the baseboard heater off and see what happens.
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Old 01-05-2013, 01:22 PM
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Quote:
Originally Posted by denman View Post
I had this breaker installed new with a baseboard heater on the same line,could this be a problem if they are running at the same time
Yes it could you may be pulling too much current.

Below is an install sheet.
https://www.whirlpool.com/digitalass...%208577187.pdf
Since I could not find anything for a TEDS74ePQ1, it is for a TEDS740PQ1.

It calls for a 30 amp dedicated line.
Lets say that the heater is 10 ohms this will then pull 24 amps, then on top of this you have the amperage required to run the motor so you do not have many amps left.
Turn the baseboard heater off and see what happens.
Mr Denman I want to thank you for your assistance, and seing that you are a senior expert appliance technician give me comfort,but most of all I admired that you are a volunteer, Thank you and as soon as I go through the pointers you gave me I will let you know.David A
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