How to Pinpoint the Failed Cooling Fan Relay in your Car

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Modern cars rely on electric cooling fans controlled by relays to regulate engine temperature. A failed cooling fan relay cannot power the fans, causing signs like overheating, reduced air conditioning performance, and warning lights illuminating on the dashboard. Checking the cooling fan relay is recommended if any of these issues arise, to prevent overheating damage to the engine.

Automotive

HOW TO PINPOINT THE FAILED
COOLING FAN RELAY IN YOUR CAR?

Most of the cars rely on a cooled
cooling system to regulate the
engine temperature.

When the car is not in motion,
the cooling fan moves air through
the radiator.

Modern cars have electric fans
that are controlled by relays to
keep the engine cool.

To save electricity, the relay
controls the engine’s cooling fan
and A/C condenser fan.

If the cooling fan relay is failed,
then you will notice the following
signs in the car.

Faulty relay cannot deliver power
to the cooling fans and won’t run
the fan.
BROKEN COOLING
FAN

When the air is derived from the
cooling fan, the radiator cannot
remove as much heat.

When the A/C is turned on, the
fan moves air across the A/C
condenser to remove heat from
the vapor.
REDUCE THE A/C
PERFORMANCE

Broken cooling fan relays also
negatively affect air conditioning
performance.

A Malfunctioning cooling fan relay
overheated the engine faster
without warning.
OVERHEATED
ENGINE

Bad cooling fan relay is the
culprit of excessive-high engine
temperatures.

If the cooling fan relay of the
car is damaged, you will notice
some warning signs.
WARNING LIGHT
COMES ON

Several lights come on or
illuminated on the dashboard of
the car such as:

● Check engine light
● Temperature warning light

Electrical short in the relay can
lock the armature in its open
position permanently.
CONTINUE
RUNNING OF FAN

As a result, the power will flow
to the electric motor continuously
and keep the fans running.

If you notice any of these signs
in the car, check the cooling fan
relay as early as possible.
CONCLUSION

Consult with a reputed mechanic
to diagnose the cooling fan relay
and fix it.

THANK YOU
https://www.ultimatebimmerservice.com/

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