Goodman GMNT080 Going off on high limit

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Old 01-16-16, 02:20 PM
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Goodman GMNT080 Going off on high limit

I had a problem with my induction motor. replaced it. restarted my furnace and it went off on high limit. I have cleaned the a coil , made sure nothing is obstructing intake and exhaust. I have replaced the high limit switch. still cycling on and off on high limit.
 
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Old 01-16-16, 02:57 PM
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Welcome to the forums.

A high heat fault is usually due to an airflow unit thru the unit.
Check/replace the filter first.

Then check for closed registers or a blocked return vent.
 
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Old 01-16-16, 03:10 PM
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I replaced filter , no blocked registers, return air is not
block. I just realized that when I replaced the induction motor. I noticed a place washer that came out. when replacing induction motor before I did not remember it being there. it in effect reduces the hole into the induction motor by half. I just removed it to see if it was the problem. I will keep you posted on the progress. thanks for your support.
 
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Old 01-16-16, 03:30 PM
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Also, Thank you for the welcome.
 
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