11 Easy Ways To Service Your Own Car AC
We can pay attention to the early warning system on car air conditioners without having to come to a car air conditioning specialist workshop. In addition to saving time, we can also anticipate new expenses from the monthly billing list. So what parts should we check when the car air conditioner suddenly breaks down?
We can check the damage to the car air conditioner yourself with the following simple explanation.
Here’s the review.
Check Condition of Car AC Compressor
Check the physical condition of the car AC compressor wall, whether it is dirty because of oil or not. There are two possibilities if the condition is dirty with oil. That is a leak in the compressor or from other parts of the engine. As for checking the work of the ac compressor in the refrigerant pump, we can see by using the car air conditioner manometer gauge.
Check Magnetic Clutch or Magnetic Clutch
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. Inspection for magnetic clutch can be seen physically without having to open the compressor engine block. Pay attention to the movement of the centerpiece which is attracted by the magnet when the air conditioner is on.
Is it slipping or not?
Also pay attention to the sound when this part is connected, does it sound loud or weak?
If when connected, there is a loud sound of friction between the irons, it indicates that the armature assembly surface has worn out with the pulley surface. Or there is a distance or gap that is too far. And the result of a distance that is too far will result in sometimes being connected and sometimes not, especially if the compressor temperature is hot, generally if the magnet has been exposed to heat, its magnetic ability will decrease.
How to check the AC Condenser
Check the fins on the condenser for oil wet which indicates a leak in the condenser. Also check for bent fins or debris that reduces condenser cooling.
Check the Flexible Hose and Pipeline
Check AC pipes, both flexible pipes and aluminum pipes, for possible leaks or possible friction with other components that cause unexpected leaks. An indication of a leaking pipe is that there is a section of the pipe that is wet with oil at the connection.
How to Check Receiver Drier
This Receiver Drier functions like a filter that filters dirt so it doesn’t pass to the expansion valve. Car air conditioner with receiver drier type separate from condenser equipped with sight glass and pressure switch. Check the In and Out sections because in this section oil or Freon leaks often occur because the hardened seal makes the connection not strong.
How to Check Expansion Valve
The expansion valve that we can physically check from the outside is a box-shaped expansion valve. 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 which can be easily disassembled. If there are traces of AC oil on this expansion valve, this indicates a leak in the pipe connection seal.
How to Check the Evaporator
The benchmark for a dirty evaporator lies when the air conditioner is turned on with maximum power but the wind gusts released by the evaporator are very small. There is nothing wrong with cleaning the evaporator from the dirt that has slipped.
How to Check Blower
A noisy blower indicates the presence of dirt in it. Checking is enough by listening to the sound of the blower. In addition to the dirt that enters, the condition of the worn blower will also cause noise in our car air conditioner.
Checking the Fan Condenser
The fan on the condenser is used to dissipate the heat in the condenser. If the condenser fan speed decreases, it can be ascertained that overheating will occur in the condenser.
How to Check the Drive Belt
The drive belt functions to drive the compressor pulley motor with the cranksaft pulley. Pay attention to the condition of the drive belt. If there are cracks, replace them immediately. This is to avoid a broken drive belt when the condition of the car is moving. In some cases, the AC drive belt of this car is integrated with the water pump and alternator rotation. Not only the car AC dies if the drive belt breaks. But it will also result in our car engine overheating and charging the car battery not running.
Checking AC Freon Condition
Checking the condition of the AC Freon can be seen on the sight glass on the receiver drier. Generally, if the car engine is in the idle position, white bubbles will appear and turn clear when on the gas. This indicates the condition of Freon is still quite a lot.