Amount Of Air Blown From Vents Does Not Change [Manual Air Conditioner]: Notes

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

AMOUNT OF AIR BLOWN FROM VENTS DOES NOT CHANGE (MANUAL AIR CONDITIONER) DESCRIPTION AND POSSIBLE CAUSE

DESCRIPTION	Malfunction in blower system
POSSIBLE CAUSE	HEATER 40 A fuse malfunction Blower unit malfunction Open or short circuit in wiring harness between climate control unit and blower relay Blower relay malfunction Blower motor malfunction Blower fan controller malfunction Climate control unit malfunction

When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while performing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions. If there is a problem, inspect make sure connectors, terminals and wiring harnesses are connected correctly and undamaged.