Husky H1506F stopped building pressure past ~15 psi, narrowed down to check or unloader valve
(Wylie, TX, USA)
I've read through the majority of posts, so I'm sorry if I duplicate a question/answer here, but I need your help.
I have a Husky H1506F "pancake" compressor.
During regular use the motor made an odd change in noise, just for a second, sounded like something gave way, but then continued to run normally, except no more pressure built up. I think I've narrowed the problem down to either the check valve or unloader valve. So here is what my observations are:
1) Compressor runs air into the tank (not more than about 15 psi), and it holds for several hours once I turn the compressor off.
2) When the compressor is running there is continuous puffing air that comes out of the unloader line with the unloader valve removed. When the compressor is off there is no air escaping from the unloader line.
3) When the unloader valve is attached to the unloader line, the puffing air continues to escape through the valve release hole while the compreesor is running.
4) How do you tell a defective unloader valve? I have a "condor" style straight unloader valve, and the actuator pin is depressed/not sticking out at rest (holding it in my hand). I've seen pictures of new unloader valves online and they show the pin sticking out, could I have a faulty unloader valve?
5) Although my tank will hold low psi air, it is possible I have a faulty check valve that is allowing higher pressure air to escape, but keeping in a lower psi?
Hey John. Thanks for taking the time to actually read some of the info on the site. Many folks just ask, and don't realize that there are pages here with the answers already posted to their compressor problem questions.
If your unloader valve is dumping air all the time after the compressor stops, then that points to a leaky check valve.
When the compressor is running, is air being pulled into the air compressor via the intake port? You may have to remove the intake filter to check.
If air is being pulled in, pull the line from the pump to the tank (after dumping air). When the compressor is running, can you stop air from flowing out of the port to the tank by putting a piece of cardboard or plastic (not your bare hand) over it?
I'm thinking that you may have a valve or gasket failure based on what you have posted.
An update as a comment here would be appreciated.
husky oiless 26 gallon piston freezing
Greetings! i pulled the cover off and the round metal that the piston is connected to is pushing out causing the piston to grind against it, up to 25 psi, its not bad, but after that it comes out hard. my friend noticed the problem and we C-clamped it back in, but it lasted 10 minutes.
Steve, I'm happy to post this for you, though it will be difficult for folks to help without knowing the model number of your Husky.
Also, some photos would be a big help.
Why not start another thread in the Husky section, identify the model, and send in some photos (up to four) so that folks can see what you are referring to?
Husky 33 gal. compressor not powering on
Hello, I have a Husky 33 gal. compressor, I bought it as refurbished and the label containing model etc. is not intact.
When it's plugged into the wall outlet and the tank is drained to empty it won't automatically turn on to refill. I've tested the GFCI and the breaker, neither are tripped. The outlet is good, I've plugged in other appliances and they work normally. Not sure what else to check.
When the tank is empty the pressure switch should have tripped to the passing setting, which means that power should be flowing through the pressure switch to the motor circuit, Scott.
Is it? You'll need a multimeter to check.
Post a comment here with your findings if you would.