Blend Door Servo Testing - JeepForum.com
 
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post #1 of 4 Old 10-09-2009, 05:08 PM Thread Starter
roelze
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2002 ZJ 
 
Join Date: Dec 2007
Location: Anchorage, AK
Posts: 10
Blend Door Servo Testing

Hey Guys,

I am putting my GC back together this weekend after replacing the heater core, and upgrading the blend doors with the new style, and also the recirc door broke at the hinge. Yes, I have all of the known issues. Here's my question, does anyone know if the door servo motors can be bench tested? I don't ever, ever, ever, EVER, want to pull the dash out of my jeep again.

Thanks,
Rick

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post #2 of 4 Old 10-09-2009, 07:24 PM
RevNL
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1999 WJ 
 
Join Date: Jul 2009
Location: Northern VA
Posts: 129
Yes. I used test leads and a 12v power supply to run them all full-swing before reinstalling the HVAC box.

Just don't run them too far or you'll break the stops on the new parts.
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post #3 of 4 Old 10-09-2009, 07:26 PM
USA_PRIDE
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1979 CJ7 
 
Join Date: Apr 2005
Location: Sioux City
Posts: 254
yeah really simple to bench test the door actuators. When I replaced the blend doors and recirc door with the steel heater treaters replacement, it came with a tester but u can make your own. take a 9v battery and two lengths of wire. disconnect the plug to the motor. connect the wires to the battery. touch one wire to each prong on the motor. it will move the doors in one direction. then switch the wires going to the motor (changing polority). it will cause the doors to go the other direction. hope this helps

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post #4 of 4 Old 10-12-2009, 02:04 PM Thread Starter
roelze
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2002 ZJ 
 
Join Date: Dec 2007
Location: Anchorage, AK
Posts: 10
Thanks for the info guys, that worked great. Happy to report that the Jeep is all back together, and everything is working great. Now I am ready for another Alaska winter........
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