{"id":5072,"date":"2019-08-31T14:33:14","date_gmt":"2019-08-31T18:33:14","guid":{"rendered":"http:\/\/mikestrawbridge.com\/blog\/?p=5072"},"modified":"2019-08-31T14:33:24","modified_gmt":"2019-08-31T18:33:24","slug":"jeep-cherokee-xj-blower-motor-troubleshooting","status":"publish","type":"post","link":"http:\/\/mikestrawbridge.com\/blog\/2019\/08\/jeep-cherokee-xj-blower-motor-troubleshooting\/","title":{"rendered":"Jeep Cherokee XJ Blower Motor troubleshooting"},"content":{"rendered":"\n<h4 class=\"wp-block-heading\">How to get air flowing again in the HVAC system.<\/h4>\n\n\n\n<p>The blower motor stopped running during my last off road trip past winter. Today I decided to find out why and get it going again.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"175\" height=\"205\" src=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2019\/08\/littlefuse.jpg\" alt=\"\" class=\"wp-image-5075\"\/><\/figure>\n\n\n\n<p>I started by checking the blower motor itself.  Last fall, squirrels had chewed the wire and I had to make  a splice.   The wires were intact so I connected 12 Volts to the terminals. The fan ran.  So that part was good.<\/p>\n\n\n\n<!--more-->\n\n\n\n<p>Next I checked the fuse.   Due to my roll cage and racing seat, this is no small task. It requires a lot a flexibility that I need to work on again.  I eventually got the fuse out and it looked pretty rough.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"293\" height=\"220\" src=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2019\/08\/meltedfuse.jpg\" alt=\"\" class=\"wp-image-5073\"\/><\/figure>\n\n\n\n<p>But the voltmeter showed ti still worked.  I replaced it anyway.  I also sprayed some contact cleaner in the fuse block terminals.  The fan still did not work.<\/p>\n\n\n\n<p>Next, I pulled the dash panel to access the switch.  I first tried to just wiggle it out some and get to the blower motor switch.  I have a winch control panel mounted where the radio used to be so I was trying not to have to remove that.<\/p>\n\n\n\n<p>The wiring diagram said power came in on the blue wire. But there was not voltage there.  I was getting closer.  I was also happy to see the plug on the blower switch was not melted like they usually are in Cherokees.<\/p>\n\n\n\n<p>Next I pulled my winch control panel so I could get to the other connections and test the power coming to the main switch in the HVAC controller.<\/p>\n\n\n\n<p>I soon found my problem.  The main power harness was not connected to the back of the HVAC controller.<\/p>\n\n\n\n<p>While it was loose, I checked to make sure the violet wire had power and it did.<\/p>\n\n\n\n<p>I plugged it all back together and heard the whirr of the blower motor.  Now I can have heat and defrost again!<\/p>\n\n\n\n<p>I also can make the electric radiator fan kick on by selecting AC even though I no longer have a compressor.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/amzn.to\/2HzxzWs\"><img decoding=\"async\" loading=\"lazy\" width=\"355\" height=\"355\" src=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2019\/08\/XJblower.jpg\" alt=\"XJ Blower motor\" class=\"wp-image-5074\" srcset=\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2019\/08\/XJblower.jpg 355w, http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2019\/08\/XJblower-150x150.jpg 150w, http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2019\/08\/XJblower-300x300.jpg 300w, http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2019\/08\/XJblower-100x100.jpg 100w\" sizes=\"(max-width: 355px) 100vw, 355px\" \/><\/a><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>How to get air flowing again in the HVAC system. The blower motor stopped running during my last off road trip past winter. Today I decided to find out why and get it going again. I started by checking the blower motor itself. Last fall, squirrels had chewed the wire and I had to make &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/mikestrawbridge.com\/blog\/2019\/08\/jeep-cherokee-xj-blower-motor-troubleshooting\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Jeep Cherokee XJ Blower Motor troubleshooting&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/posts\/5072"}],"collection":[{"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/comments?post=5072"}],"version-history":[{"count":1,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/posts\/5072\/revisions"}],"predecessor-version":[{"id":5076,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/posts\/5072\/revisions\/5076"}],"wp:attachment":[{"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/media?parent=5072"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/categories?post=5072"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/mikestrawbridge.com\/blog\/wp-json\/wp\/v2\/tags?post=5072"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}