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Old 10-04-2013, 06:59 AM   #11
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Location: this unit is in Florida
Posts: 116
heater doesn't work

we are on the road and heater is broke. John Miles in Laramie, Wyoming had it out and I became smarter but no expert. a dangerous amateur.
he swapped out the high temp switch right under the cover (it will apparently prevent start), wasn't the thermostat-wired in a separate one and same thing happened-does it have battery power to the circuit board), the sail switch doesn't seem likely but you can bypass to attempt to get motor to run. my motor wouldn't start, it would starts and run 20-30 seconds or it may run 10 minutes.
so 1. high temp switch ? 2. thermostat 3. control board 4. motor? 5. sail switch?
does this cover it? oh and the power to it....

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Old 10-11-2013, 02:21 PM   #12
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Location: Eastern Ontario
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tjdavisjr, were you able to get your furnace working?

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Old 10-11-2013, 03:38 PM   #13
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Location: Benton, AR
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Fonzie, I have not repaired the furnace yet. I did get the furnace pulled out. It was fairly straight forward. I have determined that the problem is the fan motor. I put 12 volts directly to the motor and the motor does not run. It looks like an open circuit in the motor windings. I'm not very happy about this since the furnace is only about 2 1/2 years old but these things happen. Other than the bad motor, the furnace looks in very good condition. No soot or rust and very clean. My plan is to examine the furnace closely to see what is involved in changing the motor. If I feel confident then I will change the motor out when I return home in a week or so. If not, I will take it in for repairs. The weather has been perfect in TN and AR so I haven't really needed the heat. I have a small electric heater that I can use if needed. I located a OEM replacement motor online for $87. I will try to post some pictures when I reinstall the furnace. Thanks for checking.
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Old 10-13-2013, 08:24 AM   #14
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Location: this unit is in Florida
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my symptoms are similar and it may be the motor since John replaced all the other pieces and it did not solve it.
the motor was extremely and had very little if any air flow.
mine goes in tomorrow for repair.

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280, 8280ws, furnace, rockwood

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