I drained the air pressure from my compressor down to around 10psi to drain the condensate. Once I turned the compressor back on it would not get to the shut off pressure of 135psi.
I checked the intake and am feeling suction and I took the line off of the output to tank and feel air blowing out from output of motor. So I know basic operation of the motor is intact.
Because I don't pay alot of attention while the motor is running before, I now hear a hissing sound from the pressure switch (this may always have been the case previously) which I think comes from the unloader valve. Is this supose to be hissing while the motor is running or only after it shuts off to relieve the pressure in the line from the motor to tank?
Both relief valves seem to be functioning. The check valve seems to be working because whatever pressure is in the tank, it stays at this pressure.
What are my next steps? I priced a new pressure switch and it is quite expensive so I want to make sure I know that is the culprit before buying.
It sounds as though your unloader valve is stuck or broken. I would try and repair it but otherwise you will have to bite the bullet and get a new switch assembly I think. As you have just been working on the tank it might just be a bit of debris dislodged and stuck in the unloader valve. The unloader should only hiss just after switch off weather by automatic shut off or by manual shut down.
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need. goodluck!
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Here are those particular instructions:
The " " icon will light up on the control panel display when the compressor turns on. The " " icon will turn off when the compressor shuts off.
Emergency Condensate Holding Tank
When the room temperature is low and the indoor humidity is high, the air conditioner may not be able to evaporate some of the moisture fast enough. When this happens, the water will accumulate in an emergency condensate tank inside the unit. Once the emergency condensate tank is full, the unit will automatically shut off and the " " will appear on the control panel display. To empty the condensate tank, unscrew the screw plug at the bottom back of the unit. You will need a small pan, approximately 1" high to catch the water coming out of the condensate tank. Once the condensate tank is drained, the unit will begin working within a few minutes. The emergency condensate tank holds approximate
ly 1.5 Liters of water.
Another option is to purchase a small hose from a hardware store that can fit around the 5/8" drain plug on the back of the unit and drain the unit into a gravity drain or larger pan for continuous drainage.
To resume operation quickly, empty the water container according to the following steps:
1. Turn the unit off. Do not move the unit when the water container is full.
2. Place the drain pan accessory under the drainage port at the back of the unit.
3. Remove the screw plug from the drain hole. The condensate water will drain out automatically. When the drain pan is full, screw the screw plug back onto the drainage hole to stop the water flow. Empty the drain pan. Repeat until all the water is emptied.
Once the water container has been emptied, screw the plug back onto the drain hole. Do not allow the
water to drip continuously into the drain pan, as it might easily overflow.
Josh: Your compressor shouldn't run more than ten to fifteen minutes before shutting off. The pressure should be posted on the machine somewhere ( a decal usually says xxxpsi). You evidently have an air leak somewhere. On the bottom of the air tank there is a valve for draining the tank of air and any moisture. Make sure to close that valve by hand only (Screw it in all the way by hand and remember, you are working upside down, so don't get confused as to which way to turn it). If the valve will not unscrew to drain the tank, you can use a pliers to loosen the valve to let the air out, but be sure you are turning it in the correct direction or you'll break the drain valve!! Now that you have the drain valve closed, turn the compressor on and watch the pressure gauge. When the pressure gauge reads the pressure on the decal, the machine should turn off. If the pressure gauge stops climbing before it reaches the specified pressure, you have an air leak somewhere. You can either feel for the leak at the air line connectors by hand or mix a dish soap and water solution the pour on the air line connectors to look for the leak. Keep the soap solution away from the motor!! When you find the leak, drain the tank using the drain valve at the bottom of the tank, disconnect the hose coupling that is leaking and wrap Teflon tape around the threaded portion of the male end of the fitting (3 wraps should do it) and reconnect the coupling ( tighten it well). Close the drain valve and start the compressor again. and check all fittings for leaks again.
The check valve in the receiver tank is leaking. the check valve is located in the top of the tank where the copper discharge line from the compressor attaches. Shut off the power and bleed all the air from the receiver. Remove the copper line then remove the brass check valve. Once removed look in the check and make sure trash of some type is keeping it open. If trash is the problem clean and install. If not it will need to be replaced.
Since I am not there and can't see what is happening this might just be a WAG, but when my air compressor does that, it is either the pressure has been set too high, and when it reaches the maximum rated setting it trips the over pressure switch that trips the reset button.
It has also happened when the pressure regulator whent out and did not sense the pressure that it was supposed to turn off on.
Easy to tell what direction pump turns. Look at pump pulley and notice and fan shape of the spokes. The pulley blows air across the pump. Most pumps turn ccw, however verify by looking at fan. Good luck
Sounds like the pressure regulator has gone bad. That controls how much PSI your system is aloud to have. If this fails it will not fill to max capacity. I would replace that and all will work just fine.
well,if your air compressor was shut off this due to pressure switch w/c auto switch off your compressor,the pressure switch acquired already the cut off pressure.if the pressure goes down the cut in set up reached it will start your compressor
regarding oil spillage when shutting down check the oil level on the sight glass of crankcase
a red line indicate oil should not exceed on that level line,if the oil exceed try to drain oil.,on the side bottom of engine there is a drain plug.until on limit level .,besure that machine is shut off/breaker is off.have a nice day don't forget to rate me,thank's