Honeywell gas Valve Help Wanted


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Old 01-16-09, 10:16 AM
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Question Honeywell gas Valve Help Wanted

I have a honeywell smart valve on my furnace. Sometimes my furnace refuses to kick in, until I turn the thermostat off, then back on. Then it will run as it should, sometimes for weeks, sometimes only for an hour or so. The smart valve seems to be blinking out a code 63. Does any know what this is trying to tell me? My furnace is recently out of warranty and I'm not very pleased with the local HVAC guys that did some warranty work on it last year. (they replaced the smart valve) Any help would be appreciated
 
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Old 01-16-09, 10:33 AM
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The installation manual for a typical Honeywell Smartvalve is at
http://www.forwardthinking.honeywell...ll/69_2014.pdf

The diagnostic code for you 6-3 problem is listed on page 14.
 
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Old 01-16-09, 10:36 AM
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The diagnostic code is saying that the pressure switch on the furnace opened and the burner was shut off because of that.

A common cause of that problem would be a flame sensor on the pilot assembly that gets covered with oxides from being in the burner flame and needs to be cleaned. I use a wire brush for that.
 
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Old 01-17-09, 02:56 PM
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Thumbs up I appreciate the help

Thanks for the link and the advice. I cleaned it up and also found a little dust in the hose for the airflow proving. It's run for a full day now, if I have any more trouble with it, I'll try the routes they suggest checking.
Thanks again!
 
 

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