Peugeot Partner interior fan does not work

Greetings to all forum members. I have the following problem: the interior fan in my Peugeot Partner isn't working. I've been told it's the regulator circuit, but I don't know where it is or how to remove it to replace it with one from a junkyard. Things are really tough right now. Thanks everyone

Hi, first find the heater motor, which is what you're having problems with. Do this: slide the passenger seat back, recline the seatback, lie down with your head under the dashboard, and the motor is there. Remove the three screws, take the motor out, and looking at the motor's blades underneath, you'll see the circuit board with the speed controller. Remove it and repair it. Replace the transistors; they usually burn out if you don't replace the board. Actually, you should replace the board, but it's cheaper to replace the transistors. I hope my help is useful. Bye!