High-quality Behr heater/blower fan control module designed for first-generation Peugeot 3008 and 5008. This replacement control unit manages blower motor speed and fan functions for the vehicle climate system, restoring precise airflow control and reliable heating/cooling performance. Supplied without the wiring harness — a harnessed version is available separately.

Technical Information

• Manufacturer: Behr (Stellantis/Peugeot Supplier)
• Model: Peugeot 3008 I, Peugeot 5008 I (First Generation)
• Product Codes: P7708004, P7708003, 6441CQ
• Other Numbers: Commonly referenced under 6441CQ / P7708003 / P7708004 in parts catalogs and search queries

Function And Application

The module regulates the blower motor (heater/air conditioning fan) using electronic control (pulse-width modulation or equivalent) to provide accurate fan speeds commanded by the climate control unit. It monitors current draw and converts control signals into the appropriate power output for the blower motor. Correct operation is essential for cabin comfort, defogging, and climate control performance.

Symptoms And Diagnostics

• Intermittent fan speeds or Loss Of Some Speed Settings — Common sign of failing control electronics.
• No Blower Operation — Could indicate module failure, a blown fuse, or a faulty blower motor drawing excessive current.
• Fan Stuck At One Speed (Often High) — Internal switching transistor or control stage damaged.
• Wire Connector Corrosion Or Damage — Check connector pins and wiring before module replacement.

Installation Recommendations

• Disconnect The Battery Before Starting Work To Avoid Short Circuits And Protect The Module.
• Access The Module Typically From Under The Glovebox Or Passenger Footwell; Remove Trim Panels And Fasteners To Reach The Blower Housing.
• Unplug The Electrical Connector And Remove The Fixing Screws Or Clips Securing The Module.
• Compare The Replacement Module With The Old Unit For Connector Type And Mounting Points; Ensure Correct Orientation When Installing.
• If The Original Failure Was Caused By A Faulty Blower Motor Or Water Ingress, Repair The Root Cause Before Installing The New Module To Prevent Immediate Re-Failure.
• After Installation, Reconnect The Battery And Verify All Fan Speeds And Climate Functions Operate Normally.

Why This Part Fails Most Often

• Overload From A Worn Or Sticking Blower Motor Causing Excessive Current And Thermal Stress On The Module.
• Water Intrusion Into The Heater Box Or Connector Area Resulting In Corrosion And Short Circuits.
• Age-Related Degradation Of Electronic Components (Thermal Cycling, Oxidation).
• Poor Electrical Connections Or Damaged Wiring Leading To Intermittent Operation And Component Damage.

Compatible With First-Generation Peugeot 3008 And 5008 Vehicles; Often Searched By Part Numbers P7708004, P7708003, And 6441CQ — Use These Codes For Fast Lookup. Order This Behr Control Module When You Need Reliable Replacement Electronics For The HVAC Blower System.

Overview

This BEHR blower control module is a direct-fit solution for the heating and air conditioning fan on PEUGEOT 3008 I and 5008 I. Designed for professional workshops and experienced DIY mechanics, the unit controls blower speed and ensures reliable airflow for cabin heating and climate control. Commonly sought under part numbers such as P7708004, P7708003 and 6441CQ, this module is supplied with a short wiring lead to simplify replacement and electrical connection.

Why Choose This Part

Replacing a faulty blower control module restores precise fan speed regulation, reduces noise and prevents uncontrolled fan behavior. Using a correct OE-equivalent component from a reputable supplier like BEHR helps maintain climate system performance and passenger comfort.

Fitment And Typical Applications

Intended for PEUGEOT 3008 I and PEUGEOT 5008 I models where the original blower control module uses the listed reference numbers. Ideal for mechanics and technicians who search by product code (P7708004, P7708003, 6441CQ) when sourcing replacement parts.

Replacement Procedure

1. Safety First: Disconnect the negative battery terminal before any work on the HVAC electrical system.
2. Access: Remove the glovebox or lower passenger-side trim to access the blower motor housing. The control module is usually mounted on or near the blower motor assembly inside the HVAC plenum.
3. Disconnect: Unplug the electrical connector and carefully detach the wiring harness supplied with the unit if applicable.
4. Remove: Unscrew the module mounting screws or clips and extract the old unit from the blower housing.
5. Install: Fit the new control module, secure with screws, connect the wiring harness and plug in the connector. Ensure routing avoids sharp edges and heat sources.
6. Test: Reconnect the battery, start the vehicle and verify all fan speeds and climate functions operate correctly.

Recommended For Installation

Installation should be performed by a trained technician or an experienced DIY mechanic with basic electrical knowledge. Always disconnect the battery before starting and follow manufacturer procedures for disassembly and reassembly to avoid damage to trim and HVAC components. Check for signs of water ingress at the evaporator drain and inspect the blower motor for excessive wear before fitting the new module—an overloaded motor can shorten the life of a new control unit.

Common Failure Causes

Blower control modules typically fail due to prolonged heat exposure, corrosion from moisture ingress, electrical overload caused by a failing blower motor, or accumulated debris restricting fan movement. Symptoms include loss of fan speeds, fan stuck at one speed, intermittent operation or burning smell from the HVAC area.

Technical Information

• Manufacturer: BEHR
• Model: PEUGEOT 3008 I, PEUGEOT 5008 I
• Product Codes: P7708004, P7708003, 6441CQ
• Additional Numbers: 6441.CQ, (T84), (T87)

Notes For Mechanics

When fitting this module, verify connector type and mounting orientation to ensure a secure electrical and mechanical connection. If the original unit failed due to motor overload or water ingress, address the root cause (replace or service blower motor, clear evaporator drain) to avoid repeated failures.