Description
Fan regulator for CITROËN and PEUGEOT vehicles. Fits Citroën C3 II, C4, C5 III, C6, DS3 and Peugeot 407. Fully functional, tested.
This blower fan regulator (fan speed regulator / blower motor resistor) is a direct-fit replacement for numerous Citroën and Peugeot climate systems. It controls the cabin fan speed and ensures smooth operation of the HVAC blower motor across selectable speeds. The unit is often searched by its part number (for example 6441S7) — useful for quick identification by mechanics and DIY enthusiasts.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C3 II, C4, C5 III, C6, DS3; Peugeot 407
- Product Codes: 6441S7
- Additional Numbers: 9017094, F8840002, 5HL 008 941-03
Function And Benefits
The regulator adjusts the blower motor speed by varying the electrical control to the fan, providing accurate fan-step control for the heating and air conditioning system. Replacing a faulty regulator restores proper fan speeds, improves climate control comfort, and prevents excessive current draw that can stress the blower motor or related wiring.
Installation Recommendations
- Safety First: Disconnect the negative terminal of the battery before starting any electrical work.
- Access: The regulator is usually located near the blower motor inside the HVAC housing (commonly behind the glovebox or lower dash). Remove any trim or glovebox parts to gain access.
- Removal: Unplug the electrical connector, remove mounting screws, and extract the regulator. Inspect the connector and surrounding wiring for corrosion or damage.
- Fitment: Install the new regulator, secure mounting screws, reconnect the electrical plug, and reassemble trim. Reconnect the battery and verify blower operation across all speeds.
- Tip: Clean any debris from the blower housing and check the blower motor for smooth rotation while replacing the regulator.
Why This Part Fails
Common causes of failure include moisture ingress and corrosion of electrical contacts, overheating from excessive current or blocked airflow, worn internal components from long-term use, and poor connectors or wiring leading to intermittent contact. Symptoms typically include loss of one or more fan speeds, blower working only on high, or burning smell from the HVAC area.
For workshops and home mechanics, this regulator is a practical, cost-effective component to replace when diagnosing fan-speed faults on the listed Citroën and Peugeot models. Searchable part codes and clear fitment make identification and ordering straightforward.
