If the heater fan on Your Mercedes-Benz Sprinter isn't working, You're going to want to first check the fuse for it, which is located in the engine compartment under Your hood. Verify that hasn't tripped, and also, that there aren't any breaks in the wire for it. If You're certain the fuse is okay, then You're going to want to look at that motor next; while it could be a bad ground, it's more likely that it's a failed heater blower motor. Before You replace this, though, as a ditch effort, You can check to see if the blades have seized up, and use some WD-40 to free them.
Shane S
July 30, 2020
If the heater fan has stopped working in your Mercedes Sprinter vehicle the most common culprits are a blown fuse, a bad motor ground connection, bad motor speed control module or a failed motor.
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