DIY Home Improvement, Remodeling & Repair Forum > Appliances > HVAC > York stellar plus keeps shutting down




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Old 01-03-2010, 04:22 PM  
djh860
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Default York stellar plus keeps shutting down

Hi this has been an occasional problem but now it is to the point that the furnace wont keep burning.
When switched on it lights normally. They about 3 seconds later it cuts out. I'm sure its a sensor. How can we figure out which one is signaling a problem?
Also what might the problem be? I mean could it be a bad sensor or does it mean something major? It has been running very strong. I think it may have to do with condensation.



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Old 01-03-2010, 08:18 PM  
kok328
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Any trouble code lights flashing on the circuit board?
Have you been able to Ohm out any limit switches?



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Old 01-03-2010, 09:12 PM  
djh860
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No its too old for that no computer read out or indicator lights

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Old 01-04-2010, 08:50 AM  
kok328
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Can't say for sure but, I'd try replacing the thermocoupler.

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Old 01-04-2010, 09:38 AM  
djh860
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Default the problem

Today I discovered that the flame at ignition is not getting all the way across to the last burner. The ingition sensor is at the last burner. Since it does not detect flame it shuts down the system. Any one know why this might be happening? Could it be having problem drawing air. Could the elements be bad?

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Old 01-04-2010, 10:03 PM  
kok328
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Possilby an obstruction in the gas manifold tube. Typically this would be a spider nest/web of some sort. See if you can rod out the tube across the burners and see if that provides a fix.

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Old 01-05-2010, 04:26 AM  
baldy
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a volt meter will tell all ....find out what the ohms is on the sensor and it tell you what the min.is ,,,



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