Faults of air conditioner hose
- cracking, burning and drying of the hose due to high temperature;
- twisting of hoses;
- mechanical damage, especially grinding;
- clogging of components;
- wear of the part;
- breakage of nozzle;
- Freon leak;
- hose rupture;
- aging and fissuring of rubber gaskets and O-rings.
Symptoms of air conditioner hose faults
- air conditioner does not respond to the switch on;
- automatic shutdown of the compressor;
- space between the air conditioning and engine cooling radiator is dirty;
- coolant poorly circulates in the cooling system.
Causes of air conditioner hose faults
- use of low-quality components;
- high operating pressure in the air conditioning system because of the radiator pollution;
- temperature drops;
- exposure to moisture and chemicals;
- excessive vibration, especially because of the car driving on bumpy roads;
- improper installation of hoses.
Diagnostics
An inspection will allow you to assess the state of the air conditioner hoses. Check parts for Freon leaks. If hoses and tubes have oily deposits, it means the integrity of the parts is broken.
Repair of air conditioner hose
Repair will enable to eliminate the damage to the car air conditioner hoses and to ensure their resistance to refrigerant high pressure. Depending on the location of the fault and the extent of damage to the hose, the following types of repairs exist:
- O-rings are replaced;
- air cooling system is washed;
- torn hose is pressurized;
- hose integrity is restored by welding.
Replacing the air conditioning hose
At considerable damages of hoses their urgent replacement is needed. Otherwise the compressor may leak. Moreover, if due to violating the integrity the coolant hoses leak refrigerant, it leads to corrosion of the compressor and the expansion valve. For replacement you will need to take the following steps:
- Remove coolant from the system using special equipment.
- Disconnect the battery.
- On both sides loosen the hose mounting bolts.
- Remove the hose, and then immediately plug the open holes.
- Install a serviceable part, follow the steps in reverse order.
- Make sure that the hose does not vibrate when the air conditioner works.
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