Question about 2006 Chevrolet Trailblazer

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Recirclation light blinks on and off and will not stay on anf fan does not blow at full force when it's switch to level 5.

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{: ) Regardless of the blower motor switch position, recirculation is available only in the panel and bi-level mode switch positions. Including the OFF position. The mode switch must be placed in either the panel or bi-level position before the blower motor switch is placed in the OFF position. In order to reduce windshield fogging, outside air is circulated when the mode switch is in the defrost or defog positions. If the recirculation switch is pressed into the ON position when the mode switch is in an unavailable mode position, then the recirculation switch LED will flash 3 times. If the HVAC control module detects a fault with the recirc door the HVAC control module will try to drive the actuator for a predetermined amount of time, to outside air, which is the defaulted position for the recirculation actuator.
As for your blower not full force at level 5, check first the BLWR fuse 40A at the underhood fuse block. If its okay, most likely you have a malfunctioning blower motor resistor assembly.

Posted on Jun 10, 2011

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