1. Introducció
This manual provides essential information for the installation, operation, maintenance, and troubleshooting of the Nissan 27150-EY00A HVAC Blower Motor Resistor. This component is a genuine Nissan part designed to meet the specific requirements of your vehicle's heating, ventilation, and air conditioning (HVAC) system. It is crucial for regulating the speed of the blower motor, which controls the airflow into the cabin.
2. Informació de seguretat
Always observe the following safety precautions when working with automotive electrical components:
- Desconnecteu la bateria del vehicle abans de començar qualsevol treball elèctric per evitar descàrregues elèctriques o danys als components.
- Utilitzeu equips de protecció personal adequats, com ara ulleres de seguretat i guants.
- Assegureu-vos que el vehicle estigui aparcat en una superfície plana amb el fre d'estacionament accionat.
- Si no esteu segurs de cap pas, consulteu un tècnic d'automoció qualificat.
- Avoid touching hot engine components or exhaust systems.
3. Producte acabatview
The Nissan 27150-EY00A is an HVAC Blower Motor Resistor. Its primary function is to control the speed of the blower motor by varying the resistance in the electrical circuit. This allows the user to select different fan speeds for the vehicle's climate control system. A properly functioning resistor ensures comfortable cabin temperatures and effective defrosting/defogging.
4. Instal·lació (Configuració)
The installation of the blower motor resistor typically involves accessing the HVAC housing, often located behind the glove compartment or under the dashboard. The exact procedure may vary depending on your specific Nissan model. Refer to your vehicle's service manual for detailed, model-specific instructions.
- Preparació: Ensure the vehicle is off and the battery's negative terminal is disconnected.
- Localitza la resistència: Identify the location of the existing blower motor resistor. It is usually mounted directly into the HVAC blower housing.
- Treure la resistència antiga: Disconnect the electrical connector(s) from the resistor. Remove any screws or fasteners securing the resistor to the housing. Carefully pull the old resistor out.
- Instal·lar una nova resistència: Insert the new Nissan 27150-EY00A resistor into the housing, ensuring it seats correctly. Secure it with the original screws or fasteners.
- Connexió elèctrica: Reconnect the electrical connector(s) to the new resistor, ensuring a secure fit.
- Prova: Reconnect the vehicle's battery. Turn on the ignition and test all blower fan speeds to confirm proper operation.

Figura 1: Explotat view showing the typical location of the HVAC blower motor resistor (labeled 27077) within the vehicle's HVAC assembly. The resistor is secured by screws and connects to the main wiring harness.
5. Funcionament
Once installed, the blower motor resistor operates automatically in conjunction with your vehicle's climate control system. When you adjust the fan speed selector on your dashboard, the resistor modifies the electrical current supplied to the blower motor, resulting in the desired fan speed. No direct user interaction with the resistor itself is required after installation.
6. Manteniment
The Nissan 27150-EY00A blower motor resistor is designed for long-term reliability and typically requires no routine maintenance. However, to ensure optimal performance and longevity:
- Ensure all electrical connections remain clean and free of corrosion.
- Periodically check for any loose wiring or connectors in the HVAC system.
- Address any issues with the blower motor itself promptly, as a failing motor can put excessive strain on the resistor.
7. Solució De Problemes
Si teniu problemes amb el ventilador del vostre vehicle, la resistència pot ser un factor que hi contribueix. Els símptomes habituals d'una resistència defectuosa del motor del ventilador inclouen:
- Fan only works on high speed: This is a classic symptom of a failed resistor, as the high-speed setting often bypasses the resistor entirely.
- Fan does not work on any speed: This could indicate a completely failed resistor, a faulty blower motor, or an electrical issue (e.g., blown fuse).
- Fan only works on certain speeds: If some fan speeds are inoperative while others work, it suggests specific resistive elements within the resistor have failed.
- Burning smell from dashboard: A failing resistor can overheat, producing a burning smell. Immediately investigate and address this issue.
If you encounter these symptoms, it is recommended to have the HVAC system diagnosed by a qualified technician.
8. Especificacions
| Número de part | 27150-EY00A |
| Marca | Nissan |
| Pes de l'article | Aproximadament 1 lliura |
| Dimensions del paquet | Aproximadament 1 x 1 x 1 polzades |
| Número de peça OEM | 27150-EY00A |
9. Garantia i Suport
As a genuine Nissan part, the 27150-EY00A Blower Motor Resistor is typically covered by Nissan's standard parts warranty. The duration and terms of the warranty may vary. Please retain your proof of purchase. For specific warranty details or technical support, it is recommended to contact your authorized Nissan dealer or refer to the official Nissan warranty documentation provided with your vehicle or part purchase.
For further assistance, please visit the official Nissan weblloc o poseu-vos en contacte amb el seu departament d'atenció al client.





