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Jeep Wrangler JK
JK General Discussion
JK Heater Controls
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<blockquote data-quote="jdruid" data-source="post: 442765" data-attributes="member: 22496"><p>I know this has been discussed at length in this forum and others but I am at a loss for what else could be causing the heater/ac controls to only work 50% of the time.</p><p></p><p>What works:</p><p>- Blower works</p><p>- Speed works</p><p>- Vent selection works</p><p>- Heat / AC works 50% of the time...meaning it is a crap shoot if it will work when I start the jeep. When it works it is great.</p><p>- Heater core is hot</p><p></p><p>What I replaced:</p><p>- Coolant flushed</p><p>- Blend door on drivers side</p><p>- HVAC control unit</p><p>- disconnected battery each time</p><p></p><p>Is there something else? No matter when I start the Jeep, the defroster light blinks, the blend doors do its gyrations (all 3 of them). </p><p></p><p>I am ordering another blend door just to see if the one I got is bad but it opens and closes, just wont open for heat at times.</p></blockquote><p></p>
[QUOTE="jdruid, post: 442765, member: 22496"] I know this has been discussed at length in this forum and others but I am at a loss for what else could be causing the heater/ac controls to only work 50% of the time. What works: - Blower works - Speed works - Vent selection works - Heat / AC works 50% of the time...meaning it is a crap shoot if it will work when I start the jeep. When it works it is great. - Heater core is hot What I replaced: - Coolant flushed - Blend door on drivers side - HVAC control unit - disconnected battery each time Is there something else? No matter when I start the Jeep, the defroster light blinks, the blend doors do its gyrations (all 3 of them). I am ordering another blend door just to see if the one I got is bad but it opens and closes, just wont open for heat at times. [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
JK Heater Controls
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