This blower motor resistor/regulator controls the speed stages of the HVAC blower fan in various Citroën and Peugeot models. It is a direct-fit replacement commonly searched by OE and aftermarket numbers such as 6441S7, 9017094, F8840002 or 5HL 008 941-03, which makes it easy to find in parts catalogs. Designed for professional workshops and experienced DIYers alike, the unit restores proper fan speed control, eliminates single-speed or no-blower faults, and helps maintain cabin comfort and demisting performance.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: Citroën C3 II, Citroën C4, Citroën C5 III, Citroën C6, Citroën DS3, Peugeot 407
• Product Codes: 6441S7
• Other Numbers: 9017094, F8840002, 5HL 008 941-03

Function And Symptoms

The regulator (blower motor resistor) governs the blower motor speeds of the vehicle HVAC system. When it fails, common symptoms include blower operating on a single speed (usually high only), intermittent fan operation, complete loss of blower function, or a noticeable burning smell near the glovebox area. Failure affects cabin heating, ventilation and demisting efficiency.

Installation Recommendations

1. Park Vehicle On A Level Surface And Switch Off Ignition. For Safety, Disconnect The Negative Battery Terminal Before Working On Electrical Components.
2. Access The Resistor Pack—Typically Located Behind The Glovebox Or Under The Dash On The Passenger Side. Remove The Glovebox Or Trim Panels To Reach The Unit.
3. Unplug The Electrical Connector And Unscrew The Mounting Fasteners. Inspect Connector Pins For Corrosion Or Heat Damage.
4. Fit The Replacement Unit, Secure Fasteners, Reconnect The Connector And Reassemble Panels. Reconnect Battery And Test All Blower Speeds To Confirm Proper Operation.
5. Check And Replace Cabin Air Filter If Heavily Contaminated; Restricted Airflow Is A Common Cause Of Overheating And Premature Regulator Failure.

Most Common Failure Reasons

• Overheating Due To Restricted Airflow From A Clogged Cabin Filter Or Blocked Vents.
• Corrosion Or Poor Contact At The Electrical Connector Causing Voltage Drops And Local Heating.
• Ageing And Thermal Fatigue Of Resistor Elements Or Internal Electronics.
• Water Ingress From Heater Box Or Drain Blockages Leading To Short Circuits Or Corrosion.

Typical Service Life Depends On Vehicle Use And Environmental Conditions, But Failures Are More Likely After Several Years Of Operation, Especially If Cabin Filtration And Ventilation Are Neglected. Replacing The Regulator Restores Full Fan Control And Improves HVAC Performance. The Part Is Frequently Searched By Its Codes (6441S7, 9017094, F8840002, 5HL 008 941-03), So Using Those Numbers When Ordering Will Speed Up Identification.

Are you looking for a reliable fan speed controller (heating resistor) for Citroën and Peugeot cars? The original used part PSA 1609171080 is designed to control the speed of the heating/air conditioning fan and solves typical problems such as the fan running only on the highest level, speed fluctuations or complete non-functioning blowing.

Why reach for this part
– Original PSA part from disassembly – exact compatibility and factory quality
– Proven solution for fan speed control malfunctions
– More favorable price compared to a new part, without compromise in function

Technical information
– Function: power/speed regulation of the heating and air conditioning fan (control resistor/regulator)
– Power supply: 12 V (on-board vehicle network)
– Location: near the heater fan housing – usually behind the passenger compartment
– Construction: electronic regulator (resistor/power module), connector and shape according to PSA original
– OEM (PSA) number: 1609171080
– Condition: used original part; visually inspected; always verify compatibility by the part number on your original module or VIN

Compatibility
– Citroën C‑Elysée (selected years and equipment)
– Peugeot 301 (selected years and equipment)
Note: Different versions for manual/automatic air conditioning may vary. Before ordering, please compare the part number and connector shape with the original part or send us the VIN for verification.

Typical manifestations of the defect that this part solves
– The heating fan only works at the highest speed
– The fan does not start or runs erratically
– Perceptible variation in blowing intensity
– Old resistor/regulator overheating, burnt smell

Installation and service tips
– Disconnect the battery before replacing
– Check the state of the pollen filter (a clogged filter overloads both the fan and the regulator)
– Check the current consumption of the fan motor – a worn motor can quickly destroy the new regulator
– Replacement usually takes place without disassembling the dashboard; access is through the passenger compartment

Frequently searched terms (for easier searching)
– Fan speed controller, heater resistor, fan resistor, fan control module, Citroën/Peugeot heater controller, PSA 1609171080

Heating and air -conditioning resistor/resistor for Citroën and Peugeot with PSA 6450NV ensures continuous fan speed control in the cabin. It is an original Valeo solution, designed for reliable cooperation with the electronics of the car and correct cooling/heating performance. Especially suitable for the Citroën Berlingo and Peugeot Partner (according to the specific equipment).

Typical manifestations of defects of this part: The fan works only to the highest speed, does not spin at all, the speed varies or the fan spontaneously turns off. The cause is the thermal stress of the module, increased consumption of worn fan motor or clogged cabin filter that worsens the air flow.

The mounting is usually fast: the module is located near the heating fan (most often under the dashboard at the passenger). Procedure: Disconnect the battery, remove the bottom cover, disconnect the controller connector, release the screws (often torx), remove the part and fit the replacement. When replacing, we recommend checking the cabin filter status and free operation of the fan itself to prevent the new regulator to prevent repeated overload.

For the correct selection, compare the 6450NV code (often mentioned as 6450 NV or 6450.NV) and the shape/connector of your original part. For these cars, depending on the equipment (manual vs. automatic air conditioning), different types of regulators/resistance are used, so the match number and connector numbers is crucial.

technical information

• Manufacturer: valeo
• Model: Citroën Berlingo, Peugeot Partner (according to specific version and equipment)
• Product codes: PSA 6450NV, 6450 NV, 6450.NV
• Other numbers: Not specified

If you are looking for a “fan controller”, “heating resistor”, “Branch resistance of the fan” or “Blower Motor Resistor/Regulator” for Berlingo/Partner, check the agreement according to code 6450NV. This gives you the confidence of compatibility and the rapid recovery of the proper functioning of the heating and air conditioning.

Technical Information:
Manufacturer: PSA Citroën Peugeot
Models: CITROËN Berlingo B9 III, Peugeot Partner Tepee III
Product Codes: 648055
Additional Numbers: Not specified

The fan speed regulator is essential for the proper function of the vehicle’s air conditioning system. Its role is to maintain optimal engine cooling and ensure efficient temperature distribution, which is crucial for driving comfort and protecting the engine from overheating. Replacement is recommended if the original regulator is damaged or as a preventive measure in older vehicles to avoid future AC or cooling system issues.

This used automotive part offers a cost-effective solution compared to new components, allowing you to keep your vehicle operational without significant expenses. It is compatible with multiple vehicle codes listed in your technical guide, simplifying the identification of the correct part for your car.

Installation is straightforward and can be performed with common tools, making it ideal for DIY repairs at home. Should you have any questions or require additional information, please feel free to contact us. We are here to help you maintain your vehicle in top condition.

Technical Information:
Manufacturer: Valeo
Models: Citroën C2, C3, C5; Peugeot 206, 207, 1007, 406, 607
Product Codes: 6441L2, 6442P3
Additional Numbers: Valeo Manufacturer Number

This fan speed regulator controls the fan’s rotation speed according to engine temperature and vehicle requirements, preventing overheating and ensuring efficient cooling. It includes part of the wiring harness for easy installation. As a high-quality used component, it offers long-lasting performance and dependable operation.

Installation is straightforward, requiring no complex programming or adaptations due to its plug-and-play design, making it popular among both professional mechanics and DIY enthusiasts. The wiring connection is direct and only demands basic technical knowledge and tools.

The fan speed regulator is a critical component in your vehicle’s cooling system, responsible for regulating radiator fan speeds to maintain optimal engine temperature, especially during hot weather or under heavier engine loads.

Are You Looking For a Reliable Fan Speed Regulator Replacement For Your Citroën Or Peugeot? We offer a quality Valeo used part, compatible with Citroën, Peugeot, DS, Opel, and Toyota models. This fan speed regulator controls the temperature in the engine compartment, ensuring optimal heating and cooling system performance in your vehicle.

The fan speed regulator is a crucial component of the vehicle’s cooling and heating system, adjusting the fan speed based on the temperature in the engine bay and cabin. A properly working regulator ensures the engine operates within an efficient temperature range, contributing to improved engine performance and extended component lifespan.

The unit includes attached wiring to facilitate easier installation. Functional warranty is provided as standard.

Technical Information

• Manufacturer: Valeo
• Model: Citroën C3 Aircross, Citroën C3 III, Peugeot, DS, Opel, Toyota
• Product Codes: T1014302U-C, 1618030980
• Additional Numbers: No additional part numbers available

Installation: The regulator is typically located near the engine or ventilation system. Replacement usually takes only a few minutes. Installation by certified technicians is recommended if you lack automotive repair experience.

Ensure compatibility with your specific vehicle model before purchase. For further questions or information, please contact our customer support.

Choose this verified and fully functional fan speed regulator for trouble-free operation of your vehicle!

Product Overview

This is a used Valeo blower motor control module designed for the heating, ventilation and air conditioning (HVAC) systems of Citroën and Peugeot vehicles. The module regulates the fan speed of the blower motor, enabling precise airflow control across multiple speed settings and ensuring stable cabin ventilation. Ideal for professional workshops and DIY mechanics looking for a direct replacement part identified by part numbers 515038, T1000034Z and 6441AA.

Key Benefits

– Restores Proper HVAC Fan Control: Replaces faulty blower regulation that can cause loss of speed steps or blower stuck on one speed.
– Direct Fit For Compatible Vehicles: Cross-referenced by manufacturer and product codes for quick identification.
– Cost-Effective Repair: Common failure point that can be replaced without replacing the entire HVAC assembly.

How It Works

The module controls the blower motor by modulating electrical signals (typically via PWM or variable resistance depending on the HVAC design) to adjust motor speed. It monitors inputs from the climate control unit and adjusts the current delivered to the fan motor to achieve the requested airflow. Proper operation depends on clean electrical connections, a healthy blower motor and intact wiring harness.

Replacement Guide

Basic Replacement Steps (general guidance): 1) Disconnect The Battery Before Starting. 2) Gain Access To The HVAC Blower Housing—Typically Under The Glove Box Or Passenger Footwell Depending On Model. 3) Unplug The Electrical Connector And Remove Fasteners Holding The Module. 4) Fit The Replacement Module, Secure Fasteners And Reconnect The Connector. 5) Reconnect The Battery And Test All Fan Speeds And HVAC Functions.

Installation Recommendations

– Always Disconnect The Battery Before Removal To Avoid Short Circuits Or Damage To Electronic Components.
– Inspect The Blower Motor And Connector For Corrosion Or Excessive Wear; Replace Damaged Wiring Or Plugs.
– Ensure Proper Seating And Secure Fastening To Avoid Vibration-Induced Failures.
– After Installation, Cycle Through All Fan Speeds And Check For Abnormal Noise Or Overheating.

Most Common Failure Causes

– Thermal Stress And Overheating: Excess heat from a failing blower motor or restricted airflow can damage the regulator electronics.
– Moisture Ingress And Corrosion: Water or condensation entering the housing leads to connector corrosion and short circuits.
– Electrical Surges Or Poor Grounding: Voltage spikes and weak ground connections can degrade the module over time.
– Age And Wear Of The Blower Motor: A worn or seized motor draws excessive current and shortens the regulator’s lifespan.

Technical Information

• Manufacturer: Valeo
• Model: Climate Control Blower Motor Control Module
• Product Codes: 515038, T1000034Z, T1000034Z-C02, T1000034Z-C0
• Other Numbers: 6441AA

Compatibility

Primary Application: Peugeot 308. Also Suitable For Various Citroën And Peugeot Models That Use The Valeo Blower Motor Control Module With The Above Product Codes. Always Match The Module Part Numbers During Selection.

Notes For Professionals

Because This Is An Electronic Control Module, Verify Connector Pinout And Physical Fit During Installation. If The Vehicle Exhibits Intermittent Operation, Inspect The Blower Motor And Wiring For Root Causes To Prevent Premature Failure Of The New Module.

This blower motor regulator (fan speed control) is a direct-fit replacement designed for heating and ventilation systems on a range of Citroën and Peugeot models. Ideal for professional mechanics and competent DIY enthusiasts, the unit restores reliable multi-speed fan control and eliminates symptoms such as loss of selected fan speeds, intermittent operation, or complete blower failure. Frequently searched by part numbers 6441L2, 6441P3 and 6442P3, this module improves comfort and defogging performance when installed correctly.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C2, C3, C5; Peugeot 206, 207, 1007, 406, 607
• Product Codes: 6441L2, 6441P3
• Other Numbers: 6442P3

Function and Application

The regulator controls the blower motor speed by modulating the electrical power supplied to the fan (typically using pulse-width modulation or an electronic resistance stage depending on the system). It is mounted in the HVAC housing near the blower motor or on the air distribution box. Correct operation ensures accurate fan speed selection, efficient cabin heating/cooling and rapid window demisting.

Signs Of Failure

• Blower runs only at one speed (usually high) or does not respond to speed selector changes
• Intermittent blower operation or complete loss of blower
• Clicking noises from under the dash or burning/electrical smell
• Reduced airflow and slower cabin demisting

Why The Part Most Commonly Fails

Failures are usually caused by prolonged thermal stress, dust accumulation, corrosion of connector pins, or excessive current draw from a worn blower motor. Poor ventilation in the HVAC box and water ingress (from clogged drainage or leaks) accelerate degradation of electronic components and solder joints.

Replacement Procedure

Basic replacement steps for a competent mechanic or DIYer:

1. Disconnect the negative battery terminal before starting work to avoid electrical hazards.
2. Access the regulator by removing the glovebox or lower dashboard trim on the passenger side as required for the model.
3. Locate the blower motor housing, unplug the electrical connector, and remove the retaining screws or clips securing the regulator.
4. Install the new unit, secure fasteners, and reconnect the electrical connector.
5. Reconnect the battery, then verify all fan speeds and HVAC functions before final reassembly.

Installation Recommendations

• Always disconnect the battery before removal and follow the vehicle manufacturer’s basic instructions to avoid damage.
• Inspect the blower motor for excessive play or brush wear; a failing motor increases load and shortens regulator life.
• Clean connector pins and HVAC housing; apply a small amount of dielectric grease to connectors to reduce corrosion risk.
• After fitting, verify all speed positions and listen for abnormal noises. If the new regulator fails quickly, re-check the blower motor current draw and ventilation drains for water ingress.

This replacement regulator is suitable for workshop installation and for experienced DIY repairs. Use the listed product codes (6441L2, 6441P3, 6442P3) to confirm match with the vehicle model and year before ordering.

Product Overview

High-quality blower motor regulator (fan resistor) designed for reliable control of ventilation speeds in Citroën C1, Peugeot 107 and Toyota Aygo. This Valeo resistor (part reference 6445ZA) provides stepwise, resistive control of the HVAC blower motor, ensuring consistent fan speed selection across the dashboard controls. Ideal for professional workshops and experienced DIY mechanics looking to restore correct heater/ventilation operation.

Key Benefits

• Direct replacement for original OE-style resistive regulators — restores intermediate fan speeds.
• Durable construction by Valeo for long-term thermal resistance and electrical stability.
• Straightforward fitment for quick workshop or home repair — saves time compared to troubleshooting electrical faults.
• Part number searchable: 6445ZA / 6445.ZA — commonly used in online parts lookups.

Compatibility

Designed to fit:

• Citroën C1
• Peugeot 107
• Toyota Aygo

Technical Information

• Manufacturer: Valeo
• Model: Citroën C1; Peugeot 107; Toyota Aygo
• Product Codes: 6445ZA; 6445.ZA
• Other Numbers: C1/107 (application reference)

Symptoms Indicating Failure

• Blower works only on the highest speed setting or only on one or two speeds.
• Intermittent fan operation or complete loss of blower control.
• Burnt smell from dashboard area or visible corrosion/damage at the resistor connector.

Why This Part Fails

The most common causes are prolonged thermal stress and corrosion. The resistor dissipates heat while dropping voltage for lower fan speeds; over time this causes degradation of the resistive elements and connectors. Excessive current draw from a worn or failing blower motor, moisture ingress from leaks or condensation, and dirty air channels that reduce cooling also accelerate failure.

Replacement And Installation

Typical location: Mounted in the blower motor housing behind the glovebox or under the dashboard on the passenger side (Citroën C1 / Peugeot 107 / Toyota Aygo family layout). Basic replacement steps for experienced mechanics:

1. Disconnect the negative battery terminal before starting to prevent short circuits and protect vehicle electronics.
2. Remove the glovebox or access panel to reach the blower motor area.
3. Locate the resistor module attached to the blower housing and unplug the electrical connector.
4. Unscrew the retaining screws/clips and withdraw the resistor module.
5. Fit the new resistor, secure screws, reconnect the connector and test all fan speed positions before reassembly.

Check the blower motor current draw and brushes while replacing the resistor — a failing blower motor is a frequent reason for repeat resistor failures.

How To Diagnose

Quick checks for mechanics:

• Measure supply voltage at the resistor connector with the fan switched across different speeds; loss of voltage steps indicates resistor damage.
• Check continuity of the resistor element with a multimeter; open or heavily changed resistance values point to a failed unit.
• Inspect connector pins for corrosion or melting; poor contact causes heat buildup and failure.

Installation Recommendations

Always disconnect the battery before removal and follow the vehicle manufacturer’s removal procedure to avoid damage. Use appropriate hand tools and secure connectors firmly. If the blower motor shows signs of wear or draws excessive current, replace or service it at the same time to prevent premature failure of the new resistor.

Why Choose This Part

This Valeo blower resistor is a practical replacement that restores correct fan speed control and improves HVAC comfort. Its OE-style fit and known part codes (6445ZA / 6445.ZA) make it easy to identify during parts lookup and reduce installation time for technicians and experienced DIYers.

Note

There Is No Fixed Service Interval For Blower Resistors; Replacement Is Based On Symptoms And Condition. Regular Inspection Of The Blower Motor And Electrical Connectors Helps Extend Component Life.

Conclusion

If your Citroën C1, Peugeot 107 or Toyota Aygo shows reduced or erratic fan speeds, replacing the blower motor resistor with this Valeo unit (6445ZA) restores reliable HVAC control. Suitable for both workshop professionals and skilled DIY mechanics seeking a straightforward, OE-compatible solution.