Why is the cooling fan running on high?
2007 Mercedes clk350 , why… 2007 Mercedes clk350 , why is cooling fan running on high ? As soon as car starts the cooling fan runs high, have checked ac temp sensor (is good) …still runs high regardless if ac is on/off.
What are the symptoms of a bad cooling fan relay?
1. Engine running hot One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If you notice that your engine is running at higher temperatures than normal, that may be a sign that the relay is not functioning properly.
What should the radiator fan be running at?
The fan continues to run at its maxiumum speed, regardless of the engine temperature. I allowed the car to run today from cold to just above 80 deg. C before sutting it off today.
Are there any fans running at full speed?
Fans are still running at a constant full speed. The laptop is an Alienware M17X R4, and i’ve had it since December 2013. Any diagnostics or help would be super appreciated. Solved! Go to Solution. 1 person had this problem. 02-12-2015 11:27 AM RE: Fans running at full speed all of a sudden, help please!
What does it mean when Fan is running at constant high speed?
If it is higher, the air-conditioning control module presumes that the pressure is high and assigns the fan control module to run at 90% PWM actuation. Also check the AAC pressure at stand still / cold. This should be approximately 5 – 6 bar. Confirm that there are no wiring issues to the sensor. Pin 2 – Signal. Reference values:
How to control fan speed for cooling electronic equipment?
Interest has been growing in integrated circuits for controlling the speed of cooling fans in personal computers and other electronic equipment. Compact electrical fans are cheap and have been used for cooling electronic equipment for more than half a century. However, in recent years, the technology of using these fans has evolved significantly.
Can a bad fan relay cause an engine to overheat?
However, a bad cooling fan relay isn’t the only culprit for excessively high engine temperatures. Many other issues can cause the engine to run hot or overheat. Rather than uncommonly high engine temps, the driver may notice that the cooling fans have stopped running.
When to turn on the cooling fan relay?
The cooling fan relay is an electromagnetic switch that controls the power supply to the engine’s cooling fans. It ensures that the energy-intensive devices only run when needed, usually when the vehicle is immobile. When the engine temperature approaches unsafe levels, the vehicle’s computer or temperature switch turns on the cooling fan relay.