Intermittently, but usually after 4-5 minutes of A/C operation, the blower motor will shut down and the recirculate switch will flash on and off. This will only occur in modes where the A/C Compressor is active and cycling the key will restore operation of the blower motor. The problem does not exist in heat modes. Anyone experience this or have any ideas? We have swapped control heads but that was ineffective.

98 300TD
93 190E
92 300TE $MATIC