Getting your Wah wah wah pedal repaired because it seems broken, might not be that practical at all. Music instruments or its accessories sometimes needed to be thoroughly checked it it’s problems can be fixed or need to be replaced already. There are times that it is practical to simply replaced such item that try to repair it.
Have the music instruments repairman check the problem properly than wasting your money repairing something that needs to be replaced. It might also affect the music coming out of your instrument, what you think?