{"id":2252,"date":"2010-01-02T10:38:05","date_gmt":"2010-01-02T15:38:05","guid":{"rendered":"http:\/\/nuxx.net\/blog\/?p=2252"},"modified":"2010-01-02T10:38:05","modified_gmt":"2010-01-02T15:38:05","slug":"more-furnace-problems","status":"publish","type":"post","link":"https:\/\/nuxx.net\/blog\/2010\/01\/02\/more-furnace-problems\/","title":{"rendered":"More Furnace Problems"},"content":{"rendered":"<p><center><\/p>\n<table cellpadding=1>\n<tr>\n<td bgcolor=\"black\"><a href=\"https:\/\/nuxx.net\/gallery\/v\/aroundthehouse\/various_bits\/IMG_4824.jpg.html?g2_imageViewsIndex=2\"><img decoding=\"async\" src=\"https:\/\/nuxx.net\/gallery\/d\/89390-2\/IMG_4824.jpg\" height=427 width=640 border=0 title=\"One of the limit switches from my furnace.\"><\/a><\/td>\n<\/tr>\n<\/table>\n<p><\/center><\/p>\n<p>Here&#8217;s one of two limit switches in my furnace. This was pulled out while I was attempting to determine why my furnace isn&#8217;t working properly. As it&#8217;s nice and clean this didn&#8217;t seem to be the reason for the problem.<\/p>\n<p>What I&#8217;ve observed is as follows:<\/p>\n<blockquote><p>1) Pilot igniter sparks for ~20 seconds.<br \/>\n2) Pilot lights.<br \/>\n3) ~20 seconds later main gas valve opens.<br \/>\n4) Main burner ignites.<br \/>\n5) Main burner extinguishes, but pilot stays lit.<br \/>\n6) 4-5 repeat three times before blower starts.<\/p><\/blockquote>\n<p>After removing this limit switch, looking it over, cleaning its contacts and surrounding area, then reassembling it #5 didn&#8217;t occur and the blower started like normal. I&#8217;ll listen carefully for a while and see if the problem reoccurs or if more thought needs to be given to the issue.<\/p>\n<p>I&#8217;d generally blame the flame sensor, but there isn&#8217;t one on my furnace. I&#8217;m concerned that this problem may be caused by the controller board dying (<a href=\"http:\/\/en.wikipedia.org\/wiki\/Capacitor_plague\">capacitor plague<\/a>?) or some other passive electronic bit slowly failing, leading to intermittent issues. Replacing controllers or gas valves is not cheap, and I&#8217;m wary of doing so without knowing that it&#8217;ll fix the problem.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Here&#8217;s one of two limit switches in my furnace. This was pulled out while I was attempting to determine why my furnace isn&#8217;t working properly.&#8230;<\/p>\n<div class=\"more-link-wrapper\"><a class=\"more-link\" href=\"https:\/\/nuxx.net\/blog\/2010\/01\/02\/more-furnace-problems\/\">Continue reading<span class=\"screen-reader-text\">More Furnace Problems<\/span><\/a><\/div>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-2252","post","type-post","status-publish","format-standard","hentry","category-around-the-house","entry"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/2252","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/comments?post=2252"}],"version-history":[{"count":1,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/2252\/revisions"}],"predecessor-version":[{"id":2253,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/2252\/revisions\/2253"}],"wp:attachment":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/media?parent=2252"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/categories?post=2252"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/tags?post=2252"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}