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SmartSense™ Heater/Blower Motor Fan Resistor for Renault Laguna MK II 7701207853
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SmartSense™ Blower Motor Resistor/Control Module
OEM quality heater resistor/control module to repair broken heating in cars. Comes with 3 Year Warranty.
A blower motor contains a set of terminals designed to generate voltage in proportion to electrical current. These resistors allow the blower motor to function at lower speeds. If the blower motor resistor fails, the blower motor only functions at its highest speed and cannot decelerate meaning it will only work at full speeds. Replacing the blower motor resistor typically corrects this problem
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Features and benefits of SmartSense Resistors
OEM Design or Improved Design when OEM units are known to have functional limitations.
OEM or better materials.
Manufactured in TS16949 quality certified factory. TS16949 is a requirement of all OEM auto manufacturers.
Rigid Life Testing to confirm the longest life possible.
Other testing includes salt spray, thermal shock, and vibration.
On vehicle testing to confirm fitment and function in a “real world” environment. .
Compatibility
| Model | Comments | Comments | Part No. | Advert |
|---|---|---|---|---|
| Please compare the part number with your original part to ensure correct operation and fitment. A LOT OF vehicles use more than one part number depending on configuration. If in doubt please email us your chassis/VIN number and we will let you know the correct part you need for your car. | ||||
| Laguna II | Normal Heating | > 21001 | 7701207853 | THIS |
| Laguna II | Normal Heating | < 21001 - Modification Loom 7701056369 required | 7701207853 | THIS |
| Laguna II | Normal Air Conditioning | > 21001 | 7701207853 | THIS |
| Laguna II | Normal Air Conditioning | < 21001 - Modification Loom 7701056369 required | 7701207853 | THIS |
| Laguna II | Regulated Air Conditioning | 7701206541 | N/A | |
Interchangeable Part Numbers:
Renault: 77 01 207 853
Renault: 77 01 206 540
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There are numerous guidelines and instructions on owner forums, the internet and on YouTube. However as this is a service part we recommend installation by a qualified professional.
When installed it is IMPERATIVE to monitor the temperature of the resistor on first use. Sometimes a blown resistor can be a symptom of the problem and not the problem itself, and replacing it in this scenario will only cause it to blow again. If the resistor starts heating very quickly and getting too hot IMMEDIATELY SWITCH OFF YOUR CAR and diagnose the problem elsewhere. Resistors usually blow when they get too hot and this happens when too much current is being drawn from then. This can happen if there is an issue with the blower motor or even the ignition system, or a fault with the wiring. Also please check your fan is not jamming because of dirt or grease build up, or a failure in the bearings. This will also cause the fan to try to draw more power in an attempt to spin, causing the resistor to overheat and fail.
If replacing the resistor (and it is not getting hot) your heater still does not work, please check the thermo fuse or carry out further diagnosis elsewhere for a fault.
When installed it is IMPERATIVE to monitor the temperature of the resistor on first use. Sometimes a blown resistor can be a symptom of the problem and not the problem itself, and replacing it in this scenario will only cause it to blow again. If the resistor starts heating very quickly and getting too hot IMMEDIATELY SWITCH OFF YOUR CAR and diagnose the problem elsewhere. Resistors usually blow when they get too hot and this happens when too much current is being drawn from then. This can happen if there is an issue with the blower motor or even the ignition system, or a fault with the wiring. Also please check your fan is not jamming because of dirt or grease build up, or a failure in the bearings. This will also cause the fan to try to draw more power in an attempt to spin, causing the resistor to overheat and fail.
If replacing the resistor (and it is not getting hot) your heater still does not work, please check the thermo fuse or carry out further diagnosis elsewhere for a fault.