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What is a AUX fan relay?
The aux fan is run from two circuits, one is the sensor in the radiator (which sends a signal to the relay you already tested) and the other off the AC/defrost circuit. The fan will only run when the sensor gets to a certain temp, or whenever the AC/defrost is turned on (the other circuit).
What does an auxiliary fan do?
In a nutshell, an auxiliary fan supplements the airflow and cooling that is provided by the belt-driven fan. It will be essential in drawing the extra air that is needed by the engine, especially when you are moving slow.
Why does a fan need a relay?
The fan relay is an electromagnetic switch. It regulates the power supply to the cooling fans in the engine. If the temperature of the engine is so high that it is unsafe, the vehicle’s computer or temperature switch activates the cooling fan relay. When this happens, The activated relay completes a circuit.
How does a fan relay work?
The function of the cooling fan relay is to convert a low voltage signal from either the electronic control module (ECM) or a thermostatically controlled sensor. The cooling fan relay takes the low voltage signal and internally switches the relay “on” to allow battery voltage to be supplied to the radiator cooling fan.
What is car auxiliary fan?
These are Flex-a-lite electric fans designed to be used as auxiliary cooling fans, mounted in front of the radiator, to help a belt-driven fan with additional airflow through the radiator at idle or slow vehicle speeds.
How can I improve my engine cooling?
Let’s dive in.
- Increase flow through the cooling system. The flow through the cooling system can be increased by installing a water pump impeller designed to increase the flow rate of the coolant.
- Increase the cooling capacity of the radiators.
- Increase the pressure of the cooling system.
What is the purpose of an auxiliary relay?
An auxiliary relay is a relay that assists another relay or device in performing an action. It does this when its operating circuit is opened or closed. These relays are used in nearly all electronic devices to assist them in functioning correctly.
When does an ignition switch use an auxiliary setting?
Most car ignition switches include an auxiliary setting. An auxiliary relay is a relay that assists another relay or device in performing an action. It does this when its operating circuit is opened or closed. These relays are used in nearly all electronic devices to assist them in functioning correctly.
How is a relay used in a circuit?
It does this when its operating circuit is opened or closed. These relays are used in nearly all electronic devices to assist them in functioning correctly. Essentially, it is as simple as an action done to the relay causing a circuit to be opened — completed — or closed and not allow power to travel through it.
What is the purpose of an 86 relay?
The purpose of an 86 relay is to serve as an intermediary element between one or more protective relays and one or more control devices, both expanding the number of control elements actuated by any one protective function and also providing a “latching” function which must be intentionally reset in order to resume normal operation of the system.