Heater temp control on 95 EX/LX
 

Is the rotary cabin temp control mechanical, vacuum, or solid state?
Are the air doors - particularly the mixer door - operated by cable,
electric motor, or vacuum motor?

Although the engine heats up, zero heat comes out of the heater, and
all other air routing doors function properly.

--
bill
Theory don't mean squat if it don't work.