Any Honda mechanics hang out here?

Anyway.... I have a 1999 Honda Accord EX... with
the manual heater / AC controls. My switch to control
the fan speed only works on one speed and I can feel
that the switch has "slack" in it so its my assumption
that the heater control unit needs to be replaced?

I believe Honda calls this item the heater control unit...
while other manufactures may call it the A/C control head.

Is it basically a direct swap out to change one of these, it
anyone knows.

I'm talking about the control unit in the dash that operates
the heater / ac fan speed and the temp.

Thanks, Elbert
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Elbert
ask@me.com