Climate Control flakiness

[Peter Schulz]

Timing is everything, and now that its getting cold, my climate control 
(CC) is acting up.

Yesterday the blower did not come on at all - whether I set the CC head on 
ECON, BI LEVEL, AUTO or DEF, and fan speed hi or low....

Same behavior this morning - set the CC on AUTO and temp on HI

Nothing...no fan....

Channel 00 shows no error codes.

So I cycle the temperature between HI and LO  (85-63 F)....
and the blower comes on!!!

?????????

Any ideas??