Heater & A/C will NOT turn off


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Old 01-26-16, 06:36 PM
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Heater & A/C will NOT turn off

I am not an air conditioning expert! I learn through trial and error. Here is the issue, my Draft Inducer Motor and the main fan that blows air into our vents does not turn off! The only way I can turn it off is by flipping the breaker off. As soon as I turn the breaker back on, the Draft Inducer Motor and main fan that blows air into our vents immediately starts blowing! With regards to the thermostat...I have turned it off, but this does not make the Draft Inducer Motor or main fan stop! I remove the batteries and it does NOT make the Draft Inducer Motor or main fan stop! Only by flipping the breaker does everything shut off. Now, the heater lights up and works perfectly and blows hot air into vents AND the air conditioner works perfectly and blows cold air into vents. If I lower the heat to below the current temperature, the heat does turn off, but again the Draft Inducer Motor and the main fan continue to blow air!

In the last 6 months, I have changed the following: Dual Run Capacitor, Run Capacitor, Pressure Switch, Flame Rollout Limit Switch, and air filter every 3 months! Lastly, I changed the Control Board a year ago. The fuse is not broken!

This is on York unit that is 10+ years old and resides on the top roof of our condominium.
 
  #2  
Old 01-26-16, 06:58 PM
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We'd need a model number to offer detailed help on your packaged unit.

Question.... why did you replace the rollout switch ? The only time they go bad is if you actually do have a flame rollout issue.

Your unit should have a control board that has a flashing red fault LED on it.
 
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Old 01-26-16, 07:06 PM
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Unfortunately, no flashing indicator light at all to troubleshoot!

Model #D1NA036N03606C
 
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Old 01-26-16, 07:34 PM
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Ahhhhh...... your York uses the ever popular and problematic smart valve.

Are you saying that the inducer and the main blower ALWAYS run until the breaker is shut off and that you are getting heat ?

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A manual..... Commercial Documentation/package D1/2NA Manual.pdf
 
  #5  
Old 01-26-16, 11:39 PM
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PJmax, you have always been there for me in the past...thank you for that!

Yes, the inducer and main blower does not turn off...they would run until hell freezes over unless I flip the breaker and kill all power. I have tried turning the thermostat off...I tried removing the batteries! Even with the batteries removed, the inducer and main blower still run. The heater does work...plenty of heat comes out. I even went up on my roof and saw the igniter lite when I told my wife to flip the breaker on and I saw the burners burn. Everything is functioning the way it should be. I also had my wife hit the A/C on and that came on right away as well and blew cold air into the house...that works fine too! Its just getting the inducer and main blower to turn off without flipping the breaker. The moment I flip the breaker on, the inducer and main blower start instantaneously!
 
 

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