Ait conditioner not blowing at a high speed. on 2002 Volvo S60

The air conditioner is not blowing fast no matter what speed it is turned to. I had the blower replaced and the blower control knob. Neither seems to be the problem. It is still not blowing at a high speed.

Asked by for the 2002 Volvo S60
It sounds like you have a control system problem, possibly a faulty resistor, and you need it diagnosed by a Volvo specialist.
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