![]() If your car is a coupe model, the compressor clutch’s relay will go on and off due to a low-pressure switch. It could be any of those discussed in the previous sector of this article.īefore proceeding to the next step, you should understand a couple of things. If it’s only the pulley that’s rotating, there’s an issue with the system. If the ac clutch and the pulley are spinning, it means that it’s okay. Then, start the engine off and look at the ac compressor under the hood. To determine whether your ac clutch is working, you have to set the A/C settings in your car cabin to the max. If the ac clutch won’t engage, the problem likely lies with the fuse, the wiring, coil, ground, pressure switch lockout, or even the engine coolant temperature switch. ![]() Therefore, proper maintenance of both is vital if you want your system to work well at all times. It’s worth mentioning that the clutch and compressor are essential parts of your car’s ac system. This disengages the armature plate and compressor belt of the compressor drive. When you turn off the ac, the ac clutch is de-energized. ![]() This force pulls the coil towards the friction plate, giving the pump rotor power to keep the compressor running. ![]() The clutch consists of a friction plate next to an electromagnetic coil, which, when engaged, the current moves through this coil, creating an electromagnetic force. This engages the armature plate and compressor belt (of the compressor drive), causing the compressor drive to rotate along with the car engine. Once you turn the AC on, it energises the clutch. Typically, you operate it through an electromagnetic switch. The ac compressor clutch is part of the car ac system designed to engage and disengage the ac compressor pulley from the compressor drive. Improperly set compressor clutch air gap.Broken ac expansion valve: You’ll establish this as the cause if the ac compressor doesn’t turn off.Also, the clutch plate wears over time, causing the AC clutch to fail or slip. So, when the electromagnetic features overheat or get damaged, the ac clutch may break down. The auto AC system needs electricity to function. But be wary of the cost of replacing -it’s pretty expensive. To fix the issue, you might have to replace the evaporator coil. A broken or leaking evaporator coil is detectable by a hissing sound or foul odor upon turning the heat and AC. The evaporator coil is a car AC element in the cabin that helps blow the air to cool the car down. Signs of damaged ground include your car lights flickering randomly. Therefore, damaged or bad ground means the electrical currents cannot find their way to the battery. The foundation for the electrical wire operation is the ground. If the fuse is okay, it means the cause of your ac clutch not working is something else.Use a multimeter to check whether it’s still functional.To determine whether the fuse is working or not: Hence, the fuse is usually near the battery. If too much voltage reaches components of your car, the risk of damage is high. Similarly, it could get burnt, and the results won’t change. When excess voltage moves through the AC compressor system lines, a fuse will blow. Possible reasons why your clutch won’t engage, especially after detection by the sensor, include: Most modern cars feature AC clutches that use low and high-pressure switches and compressor oil levels to turn on and off. Here’s why your AC clutch won’t engage: 1) Clutch Sensor-Default Lockout 5 Reasons Why Your AC Clutch is Not Engagingĥ Reasons Why Your AC Clutch is Not Engaging.
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