POLARIS RANGER 570 Overheating Fan Not Running
| CONF | DIAGNOSIS | PART MATCH | ACTION |
|---|---|---|---|
|
86%
CONF
|
20-Amp Circuit Breaker
This is a documented pattern failure on Polaris 570 models. The breaker is often located in a vulnerable section of the wiring harness where moisture causes the terminals to corrode or the internal mechanism to rust, preventing 12V power from reaching the fan motor regardless of relay status.
SKU: 4010301
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CHECK PRICE |
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8%
CONF
|
Cooling Fan Relay
The fan relay is the primary switching component that closes the circuit to the fan motor. High-duty cycles and exposure to dust and moisture can lead to fouled contacts or coil failure, preventing the relay from clicking over when the ECU attempts to trigger the cooling cycle.
SKU: 4011222
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|
CHECK PRICE |
|
6%
CONF
|
Engine Coolant Temperature Sensor
The ECU relies on this thermistor to determine when the engine has reached the 204°F threshold required to activate the fan. If the sensor provides an incorrect resistance value or has failed open, the ECU will not initiate the fan sequence, leading to an overheat condition without a fan response.
SKU: 4010644
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CHECK PRICE |
DIY Repair Guide
Watch exactly how to replace the 20-Amp Circuit Breaker.