The following faults may occur in the water pipe of the auxiliary kettle during use:

1. Leakage: The joint of the water pipe of the auxiliary kettle may leak due to long-term use or weak connection. Leakage may be caused by loose joints, aging sealing rings or broken water pipes. Leakage will lead to the loss of coolant, reduce the efficiency of the cooling system, and may even lead to overheating of the engine.

2. Blockage: The water pipe of the auxiliary kettle may be blocked due to deposits, dirt or air bubbles. Blockage will cause the coolant not to flow smoothly and affect the normal operation of the cooling system.

3. Rupture: The water pipe of the auxiliary kettle may be broken due to external impact, overheating or aging. Cracking may lead to coolant leakage, reduce the efficiency of the cooling system, and may cause damage to other components.

4. Corrosion: The water pipe of the auxiliary kettle may be affected by corrosive substances in the cooling liquid, resulting in corrosion of the metal parts of the water pipe. Corrosion will reduce the wall thickness of water pipes and increase the risk of rupture.

5. Aging: The water pipe of the auxiliary kettle may age due to long-term use or environmental factors. Aging will reduce the elasticity and durability of water pipes and increase the risk of leakage and rupture.

In order to avoid the failure of the water pipe of the auxiliary kettle, regular inspection and maintenance are necessary. This includes checking whether the joints of water pipes are tight, checking whether there is any blockage inside the water pipes, replacing the seriously aging water pipes regularly, and using high-quality coolant. In addition, avoiding external impact and using corrosive coolant are also helpful to prolong the service life of the water pipe of the auxiliary kettle.