My 1991 300TE has found a new way to stump me. The ac/heater fan works on both speeds, I've taken it apart two times and both times the squirrel cages spin wonderfully, but inside the cabin...bubkus!

Checkes fuses, connections, nothing.

Help!

Thanks in advance.

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I have never met a man so ignorant that I couldn't learn something from him. -Galileo Galilei, physicist and astronomer (1564-1642)