87 5ktq Climate control issues....

[Beatty, Robert]

Hey gang,

Posted on this before and havent really been able to nail it down.  Problem
is this....

Start car up in the morning.  Defroster works great on low and high.  Go
home from work 9 hours later, still working just fine.  Park the car at home
for an hour,  still working great when we go to the store.  30 minutes
later, leaving the store, no fan at all.  Has happend in the past and im
buying a blower motor to rebuild and install.  My question is this... Is it
more likely to be the CC control unit? or worn brushes in the motor?  No
matter what ill have a rebuilt blower to install once i do the work, so if
its the control unit i can replace that too.

Thanks in advance

Rob