Why is my air compressor pressure relief valve not working?
Normally a pressure relief valve jams due to clogging and cruds. In this case, you have to clean up the valve and see if it works. If the valve doesn’t work after the cleaning, then you’ll have to change it. Here we’ll go through some scenarios where PRV starts blowing air.
What happens when a compressor pressure switch fails?
When pressure switch fails, your compressor plunges in more and more air. At that point, your second safety measure, the pressure relief valve kicks in. Before the pressure reaches a dangerous level, your pressure relief valve will blow open and will start venting air into the atmosphere.
How does a safety valve work in an air compressor?
Usually, the pressure level of a safety valve is kept below to the maximum pressure that a compressor can take. Whenever the pressure of your compressor is about to reach this maximum level, the safety valve will relief air from the compressor so that the pressure drops. How do Safety Valves Work in an Air Compressor
Why does my air conditioner keep blowing high pressure?
In the hvac world an expansion valve would never fail and cause a high head condition. The condenser can usually hold the complete refrigerant charge. If it keeps blowing the high side line it almost has to be a condenser fan or switch failure. High head is almost aways caused by overcharging, noncondensibles, or control failure.
Normally a pressure relief valve jams due to clogging and cruds. In this case, you have to clean up the valve and see if it works. If the valve doesn’t work after the cleaning, then you’ll have to change it. Here we’ll go through some scenarios where PRV starts blowing air.
When pressure switch fails, your compressor plunges in more and more air. At that point, your second safety measure, the pressure relief valve kicks in. Before the pressure reaches a dangerous level, your pressure relief valve will blow open and will start venting air into the atmosphere.
In the hvac world an expansion valve would never fail and cause a high head condition. The condenser can usually hold the complete refrigerant charge. If it keeps blowing the high side line it almost has to be a condenser fan or switch failure. High head is almost aways caused by overcharging, noncondensibles, or control failure.
Is there a problem with my air compressor?
Yeah, a compressor is like a bomb when you can’t control the pressure input. Because of zero pressure control, you won’t even notice high-pressure buildup inside your compressor. Give it a little more time, and soon this unnoticed problem will bring in huge damage.