We can pay attention to the early warning system on car air conditioners without having to come to a specialist car AC repair shop. Apart from saving time, we can also anticipate new expenses from the monthly money list. So what parts should we check when the car AC suddenly breaks down?
We can check the car air conditioner for damage with the following simple explanation.
Here's the review.
1. Check the Condition of the Car AC Compressor
Check the physical condition of the car AC compressor wall, whether it is dirty with oil or not. There are two possibilities if the oil is dirty in conditions. Namely a leak in the compressor or from other engine parts. As for checking the work of the ac compressor in the refrigerant pump, we can see it using a car air conditioner manometer gauge.
2. Check Magnetic Clutch or Magnetic Coupling
Compressor components consist of magnetic clutch & magnetic clutch. The magnetic clutch on the car AC compressor functions to connect the engine speed through the compressor pulley. The inspection for the magnetic clutch can be seen physically without having to open the compressor engine block. Pay attention to the centerpiece movement that is attracted by the magnet when the AC is on.
Is it slipping or not?
Also, pay attention to the sound when this part is connected, Is it loud or weak?
If when connected there is a loud friction sound between the irons, this indicates that the surface of the armature assembly and the pulley surface is worn. Or there is a distance or gap that is too far. And the result of the distance that is too far will result in sometimes being connected and sometimes not, especially if the compressor temperature is already hot, generally, if the magnet has been exposed to thermal power its magnetic ability will decrease.
3. How to check the AC Conductor
Check the fin on the condenser for oil wetness which indicates a leak in the condenser. Also, check for bent fins or dirt that reduces the cooling of the condenser.
4. Check Flexible Hoses and Pipes
Check the AC pipe, both the flexible pipe and aluminum pipe for the possibility of leaks or possible friction with other components which causes unexpected leaks. A leaky pipe indicates that there is a part of the pipe that is wet with oil at the connection.
5. How to Check Receiver Drier
This Receiver Drier functions like a filter that filters dirt from escaping to the expansion valve. Car air conditioners with a receiver drier type separate from the condenser are equipped with sight glass and pressure switch. Check the In and Out section because in this section oil or Freon leaks often occur because the hardened seal makes the connection not strong.
6. How to Check the Expansion Valve
The expansion valve that we can physically check from the outside is box-shaped. However, in some cases of other car brands, this expansion valve is outside the evaporator. For Toyota car brands, in general, this expansion valve is located on the outside that can be easily assembled and assembled. If there is a trace of AC oil in this expansion valve, this indicates a leak in the pipe joint seal.
7. How to Check the Evaporator
The benchmark for a dirty evaporator lies when the air conditioner is turned on at maximum power but the wind gusts released by this evaporator are very small. There is nothing wrong with cleaning the evaporator from slipped dirt.
8. How to Check Blower
A noisy blower indicates that dirt has gotten inside. The checking is enough to listen to the sound from the blower. In addition to the dirt that enters, the condition of a worn blower will also cause noise in our car air conditioner.
9. Checking the Condenser Fan
The fan in the condenser is used to remove the heat in the condenser. If the condenser fan speed decreases, overheating certainly occurs in the condenser.
10. How to Check the Belt Drive
The Drive Belt functions to move the compressor pulley motor with the crankshaft pulley. Pay attention to the condition of the belt drive. If there are cracks, replace them immediately. This is to avoid the drive belt that breaks when the car is in motion. In some cases, this car AC drive belt car brand is integrated with the water pump and alternator rotation. Not only does the car air conditioner die if the drive belt breaks. But it will also result in our car engine overheating and charging the car battery not running.
11. Checking Freon AC Condition
Checking the Freon AC condition can be seen in the sight glass section found on the receiver drier. Generally, if the car engine is idle, you will see a white bubble and turn clear when it is in the gas. This indicates that Freon's condition is still quite a lot.