Description
Electronic Heater Fan Regulator For Citroën C8 And Peugeot 807
This electronic heater fan regulator controls the speed of the HVAC blower in Citroën C8 and Peugeot 807 vehicles. It replaces the original regulator and is commonly referenced by part numbers 8390149, 6441AV and 6441AW. Designed for professional workshops and DIY enthusiasts, this unit restores reliable fan speed control for heating and air conditioning systems.
Technical Information
- Manufacturer: Citroën / Peugeot (Stellantis)
- Model: Citroën C8, Peugeot 807
- Product Codes: 8390149
- Other Numbers: 6441AV, 6441AW
Function And Symptoms
The regulator governs the blower motor speed by varying the electrical feed to the fan motor. Common symptoms of a failing unit include no fan operation, loss of some speed settings (for example only high speed working), intermittent blower operation, or unusual electrical smells from the dash area.
How The Part Is Replaced
Replacement is straightforward for a trained technician or an experienced DIYer familiar with HVAC components:
- Disconnect The Battery Before Starting To Avoid Electrical Shorts.
- Access The Blower Motor Housing (Usually Under The Glovebox Or Lower Dashboard Panel).
- Unplug The Electrical Connector From The Regulator And Remove Mounting Screws Or Clips.
- Fit The New Regulator Ensuring Proper Orientation And Secure Mounting; Reconnect The Electrical Plug.
- Reconnect The Battery And Verify All Fan Speeds And A/C Functions Work Correctly.
Installation Recommendations
- Always Disconnect The Battery Before Working On Electrical Components.
- Inspect The Blower Motor And Wiring Harness For Excessive Current Draw Or Damage—An Overloading Motor Can Cause Repeated Regulator Failures.
- Clean Connectors And Apply Suitable Electrical Contact Treatment To Reduce Corrosion Risk.
- Ensure Seals And Ducting Are Properly Positioned To Prevent Moisture Ingress Near The Regulator.
- After Installation, Test The Blower At All Speed Settings And Monitor For Intermittent Faults.
Why This Part Fails Most Often
Failures Typically Result From Heat And Vibration In The HVAC Assembly, Moisture Or Corrosion On Electrical Contacts, Or Excessive Current Draw From A Worn Blower Motor. Over Time The Electronic Components Can Degrade, Leading To Loss Of Speed Control Or Intermittent Operation. Addressing Underlying Causes—Such As A Faulty Blower Motor Or Damaged Wiring—Will Improve Longevity.
Order This Regulator If You Need A Direct Replacement For Citroën C8 Or Peugeot 807 (Part Numbers 8390149 / 6441AV / 6441AW). Suitable For Professional Garages And Competent DIYers Looking To Restore Reliable Heating And Ventilation Performance.
