Description
Heating Controller For Citroën Berlingo And Peugeot Partner First Series
High-quality heating controller designed for first-series Citroën Berlingo and Peugeot Partner models. Supplied with OEM reference numbers 030807DA / 030807D / 6451NJ, this unit restores reliable control of cabin temperature, blower speed and air distribution. Ideal for professional mechanics and experienced DIY enthusiasts searching by part number, this replacement control helps eliminate inconsistent fan speeds, stuck blend doors or unresponsive temperature selectors.
Function And Application
The heating controller is the user interface for the vehicle HVAC system. It controls blower speed, temperature selection, air distribution (dash/feet/defrost), recirculation and, where applicable, A/C engagement. In Citroën Berlingo and Peugeot Partner first-series vehicles this module operates the manual climate system and communicates with the vehicle’s actuators and blower motor.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën Berlingo I; Peugeot Partner I (First Series)
- Product Codes: 030807DA, 030807D, 6451NJ
- Other Numbers: 030807D | 030807DA | 6451NJ
Compatibility And Part Number Search
This controller is commonly searched and ordered by its product codes. When looking up replacements, use the codes 030807DA, 030807D or 6451NJ to increase the chance of quick identification. Intended for first-series Citroën Berlingo and Peugeot Partner models; verify physical connector shape and mounting before installation.
Replacement Procedure (Overview)
Basic replacement steps for trained technicians and competent DIYers:
- Disconnect Negative Battery Terminal Before Work.
- Remove Center Trim/Bezel Surrounding The HVAC Controls (careful of clips and retaining screws).
- Unscrew The Controller From The Dashboard Frame And Gently Pull Forward.
- Unplug Electrical Connectors And Any Bowden/Cable Linkages Or Vacuum Lines If Present.
- Fit The Replacement Unit, Reconnect All Plugs And Linkages, And Reinstall Trim.
- Reconnect Battery And Verify All HVAC Functions: Fan Speeds, Temperature Range, Airflow Modes, Recirculation And A/C Engagement.
Installation Recommendations
- Always Disconnect The Battery Before Starting To Avoid Short Circuits And To Protect Electronic Modules.
- Handle Connectors Carefully To Avoid Damaging Pins; Inspect For Corrosion Or Bent Contacts.
- Check Blower Motor And HVAC Actuators For Proper Operation Before Replacing The Controller—faulty actuators can mimic controller faults.
- During Reassembly Ensure Trim Clips Are Properly Seated To Prevent Unwanted Rattles.
- After Installation Test All Modes And Speeds; On Intermittent Faults, Inspect Wiring Harness For Chafing Or Loose Grounds.
Why This Part Fails
Common failure reasons for heating controllers in these models:
- Wear Of Internal Potentiometers Or Rotary Encoders Leading To Erratic Fan Speed Or Unresponsive Controls.
- Accumulation Of Dust, Moisture Or Corrosion On Electrical Contacts Causing Intermittent Operation.
- Mechanical Damage To Knobs, Dials Or Internal Linkages From Excessive Force.
- Overheating Or Age-Related Component Degradation After Many Years Of Service.
- Faults In Connected Components (Blower Motor, Resistor Pack Or Actuators) That Stress The Controller.
Practical Tips For Diagnosis
- Verify Power And Ground At The Controller Connector With A Multimeter Before Replacing The Unit.
- Swap In A Known-Good Blower Or Temporarily Bypass A Faulty Resistor To Confirm Where The Fault Lies.
- Check For Related Diagnostic Trouble Codes If The Vehicle Supports HVAC Fault Logging.
Part Numbers For Reference And SEO: 030807DA, 030807D, 6451NJ. Replace your worn or malfunctioning heating controller to restore precise cabin comfort control and reliable HVAC operation in Citroën Berlingo and Peugeot Partner first-series vehicles.
