What are the reasons why the air pump cannot build up pressure?
1 Answers
The reasons why the air pump cannot build up pressure include motor phase loss, damaged air pump seal, pressure relief valve set too low, or clogged air pump tubing. Below are detailed explanations and solutions: Motor phase loss: Motor phase loss prevents the motor from outputting rated power, thereby limiting the air pump's maximum output pressure. As the air pump pressure increases, the motor load gradually increases, and power consumption rises accordingly. The solution is to check the electrical circuit. Damaged air pump seal: This causes air leakage between the high and low pressure chambers. Most air pumps are piston-type, similar in structure to hydraulic cylinders. The piston head has seals that can wear out or degrade over time due to normal wear and aging, allowing air to bypass between the high and low pressure chambers and preventing pressure buildup. The solution is to disassemble the fuel pump compressor and replace the seals. Pressure relief valve set too low: For safety reasons, air pumps have a pressure relief valve at the output to prevent dangerously high pressure. If this valve is set too low, the air pump will automatically shut down whenever the pressure reaches the relief setting. The solution is to adjust the pressure relief valve to a higher setting. Clogged air pump tubing: Disconnect the air pump tubing from the dryer and operate the pump. If black smoke-like substances emerge from the tubing, it indicates clogged air pump tubing. The solution is to replace the air pump tubing.
