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Quiet control: HELLA Regulators keep your cabin climate steady and refined

HELLA regulator (interior blower) units ensure balanced, quiet, and adaptable airflow—keeping the interior climate under control at all times. Their reliable control enhances thermal comfort and supports efficient HVAC performance.

Stepless fan control: Our resistors for the interior blower enable various blower speeds – for individually adjustable air flow and optimum temperature comfort in the passenger compartment.
Constant feel-good temperature: In line with the automatic temperature controls from HELLA, a uniform temperature is maintained in the interior, even in changing outside conditions.
Quiet driving: Our finely tuned fan control reduces annoying noises – for more relaxed driving, especially on long journeys.
Easy installation: Our regulators for the interior blower are very easy to replace thanks to their perfect fit.

Car refrigerant & oil filling quantities

Localizador de peças sobressalentes

Identificação manual do veículo OE-no.

Localizador de peças sobressalentes

Identificação simples do veículo com matrícula Determine também as peças sobressalentes com números OE Informações detalhadas sobre o produto Encontre grossistas perto de si

Why HELLA?

HELLA A/C Compressors additional benefits

HELLA Interior Blower Regulators' additional benefits

HELLA regulator (interior blower) units ensure balanced, quiet, and adaptable airflow—keeping the interior climate under control at all times.

Energy efficiency: Precise speed control reduces energy usage and system load.

Passenger comfort: Prevents cold drafts and uneven air distribution through consistent fan regulation.

System protection: Regulated airflow helps prevent unnecessary strain on HVAC components.

Vehicle coverage: Available for a broad range of vehicle makes and automatic climate systems.

Their reliable control enhances thermal comfort and supports efficient HVAC performance.

How does it work?

HELLA regulator (interior blower) modulates the speed of the interior blower fan to provide smooth and efficient air distribution.

1. Input control: Receives signals from the climate control unit or manual switches to determine desired fan speed.

2. Voltage regulation: Adjusts electrical output to the blower motor, controlling fan rotation speed.

3. Airflow adjustment: Regulated blower speed ensures precise air delivery to match the selected cabin temperature.

4. Feedback loop: In automatic systems, the regulator continuously adjusts airflow based on interior sensor readings.

This dynamic regulation enables accurate and quiet air distribution for consistent in-vehicle comfort.

Why and when to replace?

Over time, regulator (interior blower)s can degrade. Here are key signs and reasons to consider replacement:

Loss of fan speed control: If blower speeds are stuck, inconsistent, or fail completely, the regulator may be faulty.

Fan running continuously: A failed regulator can cause the blower to stay on even when the ignition is off.

No airflow: Complete failure may result in the blower motor not receiving power.

HVAC system repair: Replace the regulator during broader system maintenance or when replacing the blower motor.

A functioning HELLA regulator (interior blower) ensures efficient, quiet, and adaptable air circulation inside the cabin.

What does HELLA offer?

Premium Technical Expertise and Service: Our technical workshop service, being provided through our experts, is rounding off our technical service. In addition to Tech World, our Partner World offers targeted content for wholesalers, helping them to better serve their customers.

HELLA Gutmann's Diagnostic Competence: With our first-class technical support, workshops will be able to repair the cars of today – and tomorrow. Our technical competence in workshop equipment will support this. We offer advanced vehicle diagnostics also for AC and EC, ensuring that workshops are able to deliver top-notch service.

Target-oriented Marketing Services: Entire communication to market and supporting the W/D with a powerful communication package.

Vast Data Management Services: HELLA’s sophisticated data management services allow for precise and efficient parts identification, ensuring that wholesalers and workshops can quickly find the right parts.

Tailormade Logistic Solutions: Our logistics are designed to meet the specific needs of our partners, ensuring timely and reliable delivery of products.

More details on our Regulators

Vehicle-specific spare parts

Our online catalogue is designed to make it easier for you to search for spare parts. This means that you can, for example, enter the relevant vehicle by using our comprehensive manufacturer list, the type designation or the engine code.

Vehicle-specific spare parts

Technical product information

In this database, you will find technical information about our products and specific vehicle systems – prepared by experienced technicians and mechanics.

Technical product information