Looking for the heater flap position pot. and flap position motor

[Chuck Pierce]

The heater in the car gets hot and then  goes cold.
In listening and asking questions I figured that the heater flap 
position pot. was the problem in the heater. Also the self test throws a 
7 & a 15 on channel 1.
Is this gem on the fan housing under the cover in front of the windshield?

Thanks
Chuck Pierce
91 200tq 20v Avant