Campbell hausfeld fp200201av starts up fine but stalls when i use air and it needs to refill the tank. What should i look for?

I think you are asking where is the check valve or one way valve. There is a copper tube that takes the air from the cylinder head of the pump to the tank - the check valve is combined with the fitting that attaches that tube to the tank.Most of it actually stickes inside the tank.

Please do not yell, and please proofread before posting.

My guess it was on it's side, oil from the crankcase slipped past the rings and the valve into the tank. Other guess is you have way too much oil in the crankcase. Drain it out the tank via the condensate drain. If you want to clean the tank, only use nonflammable cleaners. Look at the brake cleaner row in a car parts store. Remove the drain screw. Spray a lot in the tank. Swish it around, drain. Repeat till what drains out is oil free. Drain and refill the oil in the crankcase to the fill line, or to the required amount per the owners manual.

You have to change out the Seal and it will work fine..

Turn the pressure adjustment knob in to get the desired pressure.

their web site is chpower.com can order on line if not to old can check warranties also they can direct u to service location in ur area

that should be oiles sounds like the moter is wor out

maybe tank is full and doesnt need to continue.. drain some air and see if it starts back up.

IS IT BUILDING TO THE UNLOAD PRESSURE AND THEN STALLING OR JUST SHUTTING DOWN ANYTIME. IS THE UNIT SITTING AT AN ANGLE?

DOES IT WORK FINE WITH THE LOW OIL SWITCH UNPLUGGED? UNPLUG SWITCH AND LEAVE IT UNPLUGGED FOREVER.THEY'RE ALL P.O.S.

There is a one way valve that only lets air from compressor to tank. If this isn't working the motor is trying to start under the pressure of the tank, and therefore tripping your breaker.

Tank size only becomes a factor for one reason – A larger tank for air. A compressor will run until the pressure in the tank builds to its high-pressure point. Obviously, the bigger the tank, the longer it takes to consume the compressed air. However, the downfall is that once the air is depleted, it takes a lot longer for the air tank to refill with pressurized air. I would only go with the bigger tank if I am concerned about the motor starting and stopping too often, or if I know that I will need a constant flow of air in longer intervals. You have a choice between a larger tank and a constant-run unit.