Coleman gas furnace 7670b series,


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Old 10-18-18, 10:36 PM
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Coleman gas furnace 7670b series,

Okay so I just need to know, where is the flame sensor located?
 
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Old 10-19-18, 10:24 PM
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Welcome to the forums.

Thread moved to the gas furnace forum.

As far as I can tell..... that furnace has a pilot light. So that means it doesn't have a typical flame sensor. It has a thermocouple to keep the pilot lit.

You need to tell us what the problem is.
Some pictures of your unit..... burner area would be helpful..... How-to-insert-pictures
 
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Old 10-22-18, 01:01 AM
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Sorry this is the first time I had ever even looked at a gas furnace, Im VERY inexperienced. so it started out with the fan not blowing at all. I got inside, cleaned it all out, and even tried to reset it to see if that was the problem. After cleaning it I found the fan kicks on for a second, but it wont last any longer than Id say about 3-5 mins without kicking the whole furnace back off again. I read something saying normally this is the flame sensor that just needed to be cleaned, because apperantly nobody has cleaned the furnace in years according to my dad who used to live in the same mobile home.
 
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Old 10-22-18, 10:32 PM
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I'm still not clear on the problem. Does it heat at all ?
 
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Old 10-23-18, 03:04 AM
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it turns on and starts heating, but turns off after 3-5 minutes.
 
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Old 10-23-18, 03:56 AM
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I would suggest that "for your safety" you have a professional heating company take a look at this furnace. According to your description of the furnace's operation the fan switch and/or blower may need replaced. Has this mobile home been lived in all the time or has it sat vacant for a period of time. In your last post you said that it turns on and starts heating , but turn off after 3-5 minutes. Does the blower fan come on and blow heat during the time it is running? Do you have any idea as to the age of this furnace?
 
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Old 10-30-18, 11:57 AM
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Yes it heats for the few minutes it stays on. But the fan is pretty loud once it gets going.It has always been lived in, but from the looks of it after I cleaned it, nobody had cleaned it prior to me for a long time.
 
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Old 10-30-18, 01:44 PM
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So at the current time..... we don't know if the blower is failing or the burner is shutting down from high heat or both.
 
 

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