- 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 a few things to check, you may have already checked some of these.
Electricity...Compressors will run best with full 115Vot 15AMP/Or 220V electrical supply from a circuit, over the shortest electrical cord as possible.
Air Leaks..Place your ear close to the compressor and listen for air leaking, if you hear air that is not normal and means you have to locate and repair whatever it is that is leaking. Check the air unloader valve... The air unloader valve will blown out air when you turned off the compressor, that is normal. But it should not have air leaking out of it all of the time. If so then it is faulty and in need of repair/replacement.
Valves...If either the intake or exaust valves fail, breaks, or fails to seat, then your compressor will run 24 hours a day and never build up to the correct pressure for shut-off.
Gaskets...Check to see if your gaskets have failed. You could have a gasket failure between the pistons and you will never know it because it shows no external air leak. If this situation happens then the air will only cycle between cylinders and never build up the correct air pressure. One way to check the gasket is remove the air filter, then put your hand over the intake. Please take time to rate me Bud If correct then it will **** you hand against the intake. If the valve or valves have failed then you will feel the air sucking in and blowing out.
Piston Rings and Cylinder...The piston rings could be stuck,broken, or worn and not allowing the correct pressure to build up in your tank. A worn cylinder will also contribute to the problem of pressure build-up.
Pressure Switch...Check for air leaks at the pressure switch, it has a rubber diaphram that can fail and leak air out of the system. Please take time to rate me Bud
ww.ppe-air-compressors.com/coleman-powermate-air-compressor... - CachedColeman Powermate Air Compressor Parts, Breakdowns & Manuals. Choose Your Model # Below to find Breakdowns & Repl.
I just browsed the net and found several sites that sell coleman parts. Above is just one I copied and pasted. If your unit is older, if you know the type of pump you can search for that. eg. (debilvius) A lot of compressors have the same pump under a different name like Coleman, Sanborn etc. I have found some units that are just so old they are obsolete and parts just aren't available.Hope this helps. Good luck!
This is usually a problem with the check valve. The unloader valve on your pressure switch is designed to bleed the pressure off the head of the compressor. With a leaking check valve the pressure isn't relieved from the head and the pump can't turn causing the motor to overload and blow the breakers.
To troubleshoot your problem try the following:
Trace the 1/4" line that connects to the unloader back to the tank. You'll find a fitting there. Remove the lines and then the fitting. Sometimes cleaning that valve will alleviate the problem. If not you need to replace the check valve.
Use a 15 amp 'time delay fuse'. Any time you start a motor, the inrush current will blow a regular fuse. Motors pull high current to start then drop to normal after 1 or two seconds. The time delay will fix it up!
Is a shroud of any sort been took of ? is there oil in pump assembly ? Is there a fan on this model? At what pressure does the compressor stop pumping (should be less than 135psi aroud120psi) are you using it over it's duty capacity ei:sandblasting....?