What are the reasons for the Honda CRV compressor not working?
4 Answers
Reasons why the car air conditioning compressor is not working: 1. Circuit system failure: Short circuit or open circuit in the circuit directly loses the path for power transmission, and the electromagnetic clutch cannot normally control the working state of the compressor. 2. Lack of refrigerant: Refrigerant and refrigeration oil are mutually soluble and circulate back to the compressor through the system. If the Freon in the refrigerant is exhausted, it will lead to insufficient oil return of the refrigeration oil, reducing the lubrication effect of the compressor and causing it to jam and damage. 3. Mechanical wear of the compressor: Long-term operation under high-speed load conditions may cause the compressor parts to prematurely suffer from mechanical fatigue, thus rendering it unable to work. 4. Over-tightened drive belt: An over-tightened drive belt will directly cause the compressor to jam and fail to operate, so it is necessary to frequently check the tightness of the drive belt. At the same time, an over-loosened belt will cause the compressor's power transmission to slip, resulting in intermittent refrigeration effects and reduced power.
I've been driving a Honda CRV for a while and encountered issues with the compressor not working, often caused by minor problems. The most common issue is a blown fuse—try replacing the corresponding air conditioning fuse in the engine compartment's fuse box. The relay might also fail; listen for a 'click' sound when starting—if there's no sound, it might be faulty. Poor electrical connections are common, especially after rainy days when plugs loosen or oxidize—check if the connections are secure. Insufficient refrigerant pressure can also prevent the compressor from starting—use a pressure gauge to check or visually inspect the pipes for signs of oil leakage. You can do simple checks yourself, but if you can't fix it, it's better to seek professional repair at a shop—the AC system is delicate, so don't risk bigger problems over small issues. Regular maintenance is crucial; an annual check before summer can prevent most issues, saving you from sweating on the road.
As someone who enjoys tinkering with cars, I think there are quite a few basic checks to start with when diagnosing a CRV compressor failure. First, check if the fuse is blown—the fuse box is located near the glove compartment inside the car. Replace the one labeled for the AC and observe any changes. The relay is in the same location; if there's no response, it needs replacing. The refrigeration system is crucial—if the low-pressure side is too low, the compressor won’t start, possibly due to a pipe leak or condenser damage. Address any oil stains promptly. Electrical issues also include faulty sensors, like temperature or pressure sensors sending inaccurate signals, causing the ECU to not activate the compressor. For mechanical aspects, inspect the drive belt—if it's worn and slipping, the compressor may stop. A quick tug to check tension will tell. Don’t overlook simple causes before resorting to a repair shop to save time and money. If the AC suddenly stops while driving safely, roll down the windows to cool off.
I'm fascinated by car mechanics, and when the CRV compressor fails, the causes can be analyzed in layers. The first layer is electrical faults: blown fuses are the most common, relay contacts oxidize and fail to conduct electricity, or wiring ages leading to short circuits or breaks. The second layer is the control system: the pressure switch locks the compressor when refrigerant is low to prevent damage, and faulty temperature sensor signals can cause the ECU to ignore startup commands. The third layer is mechanical issues: the compressor itself may seize or fail to turn due to a broken drive belt, requiring a visual inspection of the belt's condition. For DIY testing, use a multimeter to check if voltage is present, but avoid forcing anything to prevent further issues. It's recommended to troubleshoot from simple to complex, and once the problem is identified, quick repairs ensure comfortable driving.
