Ruud Furnace Won't Fire - Page 2 - DIY Chatroom

frankie3s · 10-31-2009, 04:05 PM

Quote:

Originally Posted by hallwayhouse

frankie... thanks for the response... my situation is exactly like the orginal post here. The thermostat calls for heat, the draft inducer kicks in, the glow plug lights for about a minute, then you hear a click from the valve, (usually this is when the valve opens to let the gas through) instead, the glow plug turns off and the furnace blower continues to run. What do you mean by "gas regulator" do you mean the valve? I am happy to also replace the thermostat. It's 15 years old too and a cheap one.

A couple years ago I had a similar problem with another Ruud furnace, and replaced the glow plug, valve, and the circuit board. Nothing worked and I replaced the furnace.

Yup, I mean the valve. The one the op had quoted "Honeywell gas valve VR8205H" is known to have a lot of issues and Honeywell had discontinued some of them and had replaced it with something newer. If you have cleaned the flame sensor and the above problem is still happening then it might be time to replace the valve.

Click here to find out if your gas valve has been discontinued and what the replacement would be,
http://customer.honeywell.com/Honeywell/CatalogNavigator.aspx?Definition=ObsSearch&Catalog =&ChannelID={03E741AF-5630-4558-8935-E56D3759DC16}&SearchFrame=ALL&ReturnUrl=http://customer.honeywell.com/honeywell/UI/Templates/CMSTemplates/ProductXRef.aspx?NRMODE=Published%26NRNODEGUID={07 6DF614-2EDB-481E-8A9A-4DE159079029}%26NRORIGINALURL=/Business/Cultures/en-US/Products/Cross+Reference/%26NRCACHEHINT=Guest

If you do switch out the valve with a newer one (which is probably the issue providing that you did first clean the flame sensor), Personally I would also look at changing the thermostat seeing that it is 15 years old. I'm sure over time they do wear a bit and a new more modern one maybe more accurate. I had a top of the line Honeywell one that caused my furnace to cycle too much. Now that I had replaced it and the valve the furnace is working exactly as it should.

Here is the thermostat that I bought at Costco for $50 CDN,
http://www.luxproducts.com/thermostats/tx9000ts.htm

And it's touch screen too!

Disclaimer:
I must stress for safety purposes that only qualified, trained people should be working on furnaces or the repairing or replacement of.

I hope this helps!

hallwayhouse · 10-31-2009, 04:26 PM

yes, this is very helpful. I don't even have to look this part up. I have 3 of these furnaces in an apartment building. I have replaced these valves in the past. I don't know for sure if I have replaced this one, but if I did, it could have been replaced with the same faulty valve. The trick is making sure I buy the updated version of this valve. So I will look at the honeywell site to figure this out. thanks again! the disclaimer is also noted.