Durango Heater Dead, Controls Show Error Code Only

The symptoms match what I experienced with my 2011 Dodge Journey. When the blower motor failed completely, I also had no heat and got error codes from the auxiliary heater system. First check: The blower motor should make a humming sound when you turn the heat control. If theres no sound at all, its likely either the motor or its resistor. In my case, the entire blower motor assembly needed replacement as moisture had caused internal corrosion. The heater core could also be the culprit if there are signs of coolant loss or a sweet smell in the cabin. This is typically a more serious repair requiring dashboard removal. Quick checks you can do: Verify fuses are good, Listen for blower motor operation at all speeds, Check coolant level is correct, Test if the car heater responds to different temperature settings My repair was fairly extensive since the blower motor damage had started affecting other climate control components. Would recommend getting it checked soon as running without proper heat can lead to bigger problems with the heating system. Note this could be something simple like a blown fuse, but given the complete failure and error code, its likely a component issue needing professional diagnosis.

Thanks for the detailed response about the heater problems. I had almost the exact same issue with my 2014 Durango last winter. The blower motor was indeed the culprit, but we also discovered a small coolant leak near the heater core during the repair. Wondering if you recall roughly how much you paid for your blower motor replacement? My repair ended up being a bit pricey since we had to fix both issues at once. Also curious if youve had any other climate control problems since getting it fixed? Just want to make sure the original poster knows what potential costs they might be looking at, plus its good to know if these issues tend to come back.

My repair bill came out to 440€ just to fix the defective glow plug in the auxiliary heater. Since seeing the mechanic, the heating system has worked flawlessly with no further issues. The temperature sensor readings are now accurate and the ventilation system functions as it should. The initial diagnosis took a while since the blower motor was working fine in my case, it was specifically the auxiliary heater causing the climate control errors. Always good to have a proper diagnosis since heating problems can stem from multiple components. Worth mentioning that after the repair, the overall cabin heating performance improved significantly compared to before the problems started. The system now heats up much faster on cold starts.

Thanks everyone for the helpful info. I bit the bullet and took it to a trusted mechanic yesterday. Turns out my ventilation system had multiple issues, a failed blower motor and a small crack in the heater core. Total repair came to 780€ including parts and labor. The temperature sensor is now working correctly and the heat control responds perfectly. The mechanic showed me the old blower motor which was completely corroded. They also found some coolant residue around the heater core that explained the sweet smell I had noticed but ignored. Definitely worth getting it fixed properly rather than trying quick fixes. The car now heats up in half the time it used to. No more error codes from the auxiliary heating system either. Should have done this sooner instead of worrying about repair costs, ended up being reasonable considering the work needed.