Troubleshooting

Troubleshooting an issue with the installation of the Nissan Rogue Blend door kit:

Description of the blend door operation:

The blend door moves close to 90 degrees back and forth.  If you are looking at the blend door spline from the driver’s side, counterclockwise is for cold mix and clockwise is for hot mix.  What caused the failure mode is that the spline becomes stripped because the motor continues to turn when the blend door stops moving.  The blend door moves even when the car is not started, it moves all the way to the cold position when a door (or rear hatch) is opened.  This is so the temperature control always starts at the coldest position and then goes to the temperature setting of the controller.  The motor continues to run seconds after the door stops to ensure it is at the cold position.  This is what eats up the blend door spline.  

What our kit does is engage with the portion of the spline that has not been damaged and allow the motor to slip when the blend door stops.  This limits the force put on the spline, so it will not be damaged any further.  Here is how to trouble shoot the malfunction of the installation of the blend door repair kit. 

Troubleshooting: 

The goal is to see the blend door move as shown in the short video linked from our website. 

Link to video:  https://www.youtube.com/shorts/VqhxE5xbn94

We have had very little issues and have sold over 2k of these kits.  

1. We have had to help a few people that had intermittent issues with the kit working solve these by tightening the motor.  The screws we supply with the kit are a little bigger than the screws that were holding the motor in originally.  Therefore, they take a little more torque to screw them in.  Make sure the motor is secure and not loose when it gets screwed back in with the spacers in place.  
2. Ensure the actuator motor plug is securely plugged all the way in, if it is loose it can result in the motor intermittently turn. Also, the actuator motor itself could cause this problem. I have not had a bad actuator motor reported back to me.  There are a lot of them for sale on amazon for about $45.00 but I think they are there because many folks try the actuator when its actually a stripped blend door. 
3. In less than .1 percent of the installations (usually when someone tried some other method of repair before installing the kit) glue may need to be applied onto the back part of the insert into the blend door.  I designed the fins on this part to hold a paste epoxy (like JD Weld paste) or commercial hot glue in case the blend door was damaged beyond what we normally see.   We noticed other repair methods do not address the motor turning when the door stops, and felt these repairs will fail in the future and wanted this kit to work with glue in those applications.  If you observe the insert turning but the blend door is not, then glue may need to be applied.  Send a video to me if you would like me to confirm glue is needed.  Note 99.9 percent of cases glue is not needed. 
4. The control unit itself can cause an issue; this is where the control for the actuator motor resides.  I mention this because its possible, but I have never witnessed this or had this reported to me to be the problem. 
5. There has been a few that reported both sides stop heating at some point after they installed the kit.  This turned out to be a problem not related to the blend door but the heater coil not heating the air.  I have received feedback from a few that it turned out to be the coolant was low and not circulating in the heater coil. 

If you need more information, please email us and we will contact you and help you work through any issues.  We encourage this because we learn about problem installations and can help others in the future.