Why Does My 02 Honda Accord Fan Run All the Time

Symptoms of a Bad or Failed Cooling Sports fan Relay

Most modern vehicles use galvanising cooling fans to help pull air through and through the radiator and then that it can keep the engine unresponsive. Most cooling fans use electric automobile motors that have a moderate to high on-line draw, and as a result are commonly controlled using relays. The cooling system sports fan relay is the relay that controls the engine's cooling fans. When the correct parameters are met, a temperature throw or the computer leave trigger the relay, which will allow power to the fans. The relay will usually be activated one time IT is detected that the fomite's temperature approaches excessively piping temperatures. Usually a faulty cooling system winnow relay testament produce a few symptoms that can alert the driver that service may be required.

1. Engine running hot

One of the first symptoms commonly associated with a icky or flunk cooling fan electrical relay is an locomotive that runs hot OR overheats. If you notice that your railway locomotive is running at higher temperatures than normal, that whitethorn be a sign that the electrical relay is not functioning properly. If the relay shorts or fails, it will non be able to supply the power for the fans to operate and keep the engine running at normal temperatures. Abnormally luxuriously temperatures can also be caused by a variety of other problems so it is recommended to have the vehicle properly diagnosed to be true of the problem.

2. Cooling fans do not subroutine

Non-functional cooling fans are another common symptom of a potential problem with the cooling fan relay. If the relay fails, it will personify unable to supply power to the fans, and A a final result they wish not operate. This can lead to overheating, especially when the vehicle is at a stop, where there is no forward motion by the vehicle to pass air over the radiator.

3. Cooling fans persist on at all times

If the cooling fans are staying on the least bit times, this is another (to a lesser extent standard) symptom of a affirmable problem with the cooling fan relay. If the relay shorts internally, it English hawthorn effort power to exist for good switched on, which will cause the fans to run at all times. Depending on the wiring setup of the fomite, this may cause them to hitch along symmetrical when the fomite is off, which will drain the barrage.

The cooling rooter relay essentially functions as the switch for the locomotive engine's cooling fans, and is therefore an remarkable electrical component of the vehicle's cooling system. For this reason, if you suspect that your cooling fan, or relay, may possibly be having issues, have the vehicle diagnosed by a professional technician, such as one from YourMechanic. They wish be competent to look complete your fomite and supplant your temperature reduction fan relay if necessary.



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Why Does My 02 Honda Accord Fan Run All the Time

Source: https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-cooling-fan-relay

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