Question about 2002 Honda Odyssey

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Hot air blowing with climate control off.

I have a 02 Honda Odyssey and it's blowing hot air with everything turned off. I tapped once underneath the dash and it was corrected, but its back! Sure would like some expert advice.

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  • flyboy8584 Feb 02, 2009

    Is there some kind of vent door that allows air to come from the enging that could be stuck?

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You may have an air mix motor problem or a mode control motor problem. there is a test you can do that may help: 1. turn the ignition switch on. 2. turn the fan switch off. 3. press the recirc control button to select recirc (recirc indicator light comes on.) 4. press and hold the recirc button to select fresh (recirc indicator goes off). Continue to hold the the button down until the recirc indicator comes on for two seconds and then goes off. If the system is okay, the recirc indicator will stay off. If there is a problem, the recirc indicator blinks a code to indicate a fault. 1 blink=air mix control motor/circuit fault. 2 blinks= mode control motor/circuit fault. 3 blinks= evaporator temp sensor circuit fault. In case of multiple problems, the recirc indicator will only blink the code with the least number. write back if this test shows a code and we'll go from there.

Posted on Feb 05, 2009

  • Bruce1337 Aug 04, 2010

    Thank you for the detailed instructions. Will this diagnostic test work for a 1995 Honda Odyssey as well? My air conditioning works fine, but when I switch to fan-only, all that comes out is hot air.

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Try to turn the vent off make sure the light for the vent is on - which wont allow any air coming through

Posted on Jun 18, 2009

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Your heater controls are vacume controlled prob came unhooked somewhere

Posted on Feb 02, 2009

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