Posted by Stan Coryell on December 21, 2022 at 12:19:03 from (73.196.185.207):
In Reply to: Re: Furnace posted by wore out on December 21, 2022 at 11:33:20:
The valve model number helps.
The gas valve didn't know the pilot lit (problem with flame sensor or flamesensor circuit) so the smart valve locked out. This lock out is the code flashing. It's possible there is a problem with the valve also, although I don't think so. The valve wouldn't have opened when you connected your meter to it. Manufacturers are pretty particular about NOT allowing the gas valve to open until ALL the safety devices are proved. There is no simple way to trick a flame sensor since it generates current.
There is a flow chart in the gas valve manual that describes the Order of Operations.
1st, Disconnect the flame sensor wire from the valve, place your micro amp meter in series with the valve and sensor. Let the heater cycle. You should read between 0.5 (yes point 5) and 10 micro amps withthe pilot lit. I don't really know what it should be. Honeywell may have it in the instructions.
If you have less than 0.5, the main valve will not open. I would be suspicious of a ground or dirt issue at anything less than 4 or 5 (5, not point 5) micro ohms.
If less than 0.5, Clean flame sensor with the back of a knife and check grounds. Re check amps.
If amps are more than 0.5 and the main valve won't open, Valve is likely toast. (Your electrical schematic should verify this)
I would not start changing parts until I was pretty confident in what was wrong.
Upload one or more videos to your post. Photo and video filesizes should be less than 5MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Farmall 460: That's My Girl - by LeAnn R. Ralph. How many sounds can you think of that are as familiar to you as your own breathing? What about the hum of your refrigerator? Or the thump of your clothes dryer? Maybe the engine of your car? You hear those sounds every day, and you don't think much about them, do you. I can think of a few common, ordinary sounds in my daily life, too.
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
