Changing heater flap blender motor

My daughters 2013 Prius C has no heat. First I inspected it, ran all the controls on the heater a/c unit and it started blowing heat again, but stopped the next day. Can't seem to get it to work again. Checked the antifreeze, aux pump, eliminated that as a possible cause, heater core lines both in and out are hot, so it's not mechanically engine related. Check movement of the baffle actuators, and the one that controls the mixer doesn't move. I attempted to remove the blower case that allows access to the 2 actuators which are on the passenger side lower footwell area of the heater case, I removed all the bolts and screws from the blower case attached to the heater case after removing the blower fan and fresh air-recycling air actuator along with all the rt side dash panels, but could only get the case to wiggle a little bit, making me think that there is something attaching it I could not see. Has anyone else attempted this repair, or have information on how to do it? I called the dealer and they wouldn't even give me a idea on what diagnosis or repair would be to get the actuator replaced. Help! .

 

The filter is good, that was the first thing I removed. What has me-baffled-lol, is that it worked for one day, then didn't work again. I tried the hi to low heat control with fan on highest setting, every button and combination on the heater controls. Nothing seemed to work. Still cold.
My background is autobody repair, so dash removal is no problem as I have changed over 100 different airbags over my career, all requiring some sort of dash disassembly. The last 22 years I worked in the insurance field, but still worked on cars. My wife drives a Yaris, and have has issues with both blender and vent sticking here in St Louis because of running the a/c from April-October before needing heat again. Other than a couple screws, one for the trim around the storage pocket above the glove box, and a bolt behind the rt side lower kick panel once the trim is removed, everything on the rt side dash pops off with clips. The fan blower case is the issue. Once that is removed, you can access the 2 actuators for the blend and heat-a/c baffles. I can see the small gear for the baffle, and the larger gear on the actuator, but can't move it with a screwdriver. A friend has All Data, I'm going today to see if it can shed light on how to remove the case. The air recycling actuator is on the rt side of the blower case and is easily removed. Wish that was the one I needed to fix.

 

I fixed the heater damper actuator. Not an easy job. Per Toyota, you need to remove the dash, all brackets, then remove the complete heater -a/c unit, then dissemble and replace the actuator behind the blower case. I removed half the dash to access the blower case, then removed the fan motor, then took the blower case apart in the 3 pieces that it's made of, removing each part as I went, and only then can you access the 2 actuators that run the baffles. It's a 14 hour job per the repair manual with drain and refill antifreeze, a/v evac and recharge.. $2000 to replace an actuator is crazy. It took me 7 hours, mostly the time to install the blower case parts, and an hour to find a screw I dropped that ended up under the carpet..lol. It's not an easy job, especially when you have to time both the actuators to work properly. Luckily Mitchell Repair services online had the factory illustrations and info on what to do. And it works!!.

 

So an update on the blender actuator repair., heater worked perfect all winter, then this spring-no A/C! Turns out I learned something. DO NOT TURN THE LOWER GEAR on the blender door. If you turn it, the gear disengages from the blender flap, and it's heat only. I bought a LKQ heater assembly for $75 from a salvage yard, took it apart to see how it worked, and found out what happened. I took the heater apart again, engaged the gear into the blender flap, timed the gears for both actuators- I have the illustration if anyone needs it-and put it back together again. Less time this tome to repair-5 hours- and now works perfectly. I can see why this is a $2000 job at a dealership. I ended up using the low mileage actuators not replaced as well as the blower motor so I don't have to do this again. If anyone needs help woth this repair, just send me a message and I can help you through the repair.