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I have a dayton furnace with a honeywell vr8440p-2088 gas control. The ignition works fine but the problem is I am getting no gas it seems to light the pilot. I checked the orifices at the end of the pilot gas tube and could see light thru it so it was not blocked. Could this mean I would need to replace the gas valve completely? Any help appreciated pelogius@nethere.com

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Actually, after exhaustive troubleshooting and testing, all testing told me the gas valve was defective. I then replaced it. Problem was still there. I then took a shot for what it was worth and went down to purchase a new thermocouple to sense the presence of a flame. The salesman told me to remove the pilot flame tube and make sure it is not clogged. I removed it and sure enough the end was completely clogged. After cleaning it I was off and running again. So it just goes to show you that manuals don't always present troubleshooting in an exact order of importance.
I called the salesman back and thanked him.
Pelogius

Posted on May 23, 2008

I had the same problem with the same honeywell vr8440p2088 gas controler.  I found out the nob to turn on the pilot was broken.  If you can pull the knob off it is broken.  The knob has two small teeth on it to keep the pilot and gas open.  good look finding a replacment knob as the part is not made anymore.  But there is a relacement part for it.  it just costs about 250.00.  

Posted on May 23, 2008

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