http://www.masterplumbers.com/forums/ This is an XML content feed of; Plumbing Help & Discussion Forums : Gas & Gasfitting : identify these parts on older ao smith gas furnace Sat, 25 May 2013 20:36:50 +0000 Sat, 15 Nov 2008 21:01:48 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.70 360 www.masterplumbers.com/forums/RSS_post_feed.asp?TID=9484 http://www.masterplumbers.com/forums/forum_posts.asp?TID=9484&PID=25699#25699 Author: laytonkevin
Subject: 9484
Posted: 15-Nov-2008 at 9:01pm

Can someone help me understand the specific name and function of the parts directly under the main valve on my old (1987) AO Smith Gas Water heater (with exhaust). There are 2 parts connected together between the main valve and the actual burner. One part is in front and is appx 3" round shape and about 1" thick. It has 2 leads from the electrical connector. The second part is behind (and connected to) the round part. It has 4 electrical leads to it. They are connect together. Is one a Gas Pressure Switch ? which one ? I think these parts (or one of them) is not fuctioning and keeping my main burner from working. My pilot light is OK. I bought a pressure switch from AO smith and it is very small but appears to replace the front round part (original 20 year old part).


any help ?.]]> Sat, 15 Nov 2008 21:01:48 +0000 http://www.masterplumbers.com/forums/forum_posts.asp?TID=9484&PID=25699#25699