Opel Corsa, only the 4th fan march.

Al Opel Corsa Top 100 of 99, only the 4th march of the fan, nor the 1st, nor the 2nd, nor the 3rd. In the workshop they told me that it was not from the relay and that the dashboard had to be disassembled, which is what passe and which can be the cause?

Hello, you should know that the panel must be disassembled since the problem is the control of the fan that is spoiled, this is normal that over time the contacts where the current passes are stretch, you simply have to change the old control for a new one.

Your problem can be the resistance that goes to the side of the fan engine. If the thermofusible that carries only the highest speed works. The problem is where this resistance is placed.

Hello.
I am totally agree with Ivacoma.
The fan only works at the faster speed, because it is the only speed that does not go through the resistance, it is direct.
The solution is to change the heating fan resistance.
For that, it is not necessary to disassemble the dashboard, just disassemble the glove compartment and coating of the companion's feet. And next to the fan find a cylinder as a pile, which is the damaged resistance.
Do not try to disassemble the table of the heating controls. Well, the command of the thermal window is broken and the whole panel must be changed. A paston.

All the best.

Hello.
I also have this problem I have an Opel Corsa 1.3 Cdti year 2007 but I go crazy looking for the resistance of the fan, since I remove the glove compartment and there is no way to locate it. If anyone has had this problem and can tell me where it is mounted exactly in my model. Thank you very much in advance.

all the best