SUMMARY In this article, we-have carried out the power control of a dryer, all which uses forced air circulation, imported from Ghana and installed in Pouma for drying cassava in Cameroon. The performance of the dryer does not meet up with the expected needs. This power control has made us detect the causes of a high power consumption rate of the dryer and therefore carry out by changes to Obtain Optimal Functioning year; we-have added a scythe of ceiling, blown out Mittal heating resistors, changed air ventilation turbines, Multiplied and Uniformly Redistributed sections for the heated air passages in the dryer. We have identified the different dead zones in the dryer. The changes made on the dryer-have led to a reduction in power control of about 20%.