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  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017

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SOURCE: air compressor fills, but slows down as the pressure builds

sounds like you need a new check valve which should be somewhere between the compressor outlet piping,tubing,etc and the tank which prevents the air in tank to back feed to the compressor which would cause hard starting and could damage the motor easy way to check is when you shut off the compressor with some air in the tank if the check valve is bad it would continue to bleed air out out the unloader valve .the unloader valve on your unit is most likely part of the pressure switch when the unit shuts of it should only bleed down the pressure in the pump so it would make it easy to start when needed hope i didn't confuse you

Posted on Mar 23, 2009

  • 1388 Answers

SOURCE: Motor labouring - electric breaker kicking out

The problem that you describe could be casued by several problems that you can check yourself. I usually begin by checking the in-tank check valve for leaking air back to the pump. Follow the air discharge hose to the tank and you will find the brass checkvalve. With about 80psi in the tank, unplug the unit from the wall and loosen the smaller fitting (or larger whichever is easier ) at the checkvalve and listen for air leak. If leaking replace with generic valve available at Just pay attention to pipe sizes. If no leaks at check valve, remove capacitors from the motor (mark the leads) and test with meter. Repair shops usually test for free if you do not have a meter that can test capacitors. The caps should test within 95% of rating printed on side. Replace with generic to save money just watch size so that they will fit under cover (also available at grainger). If no problems so far, remove the belt and check bearings on motor and compressor for noise (should be relative silent as your turn it by hand). Worn bearings on the motor will cause the motor to overheat. Worn bearings on compressor will just make noise but usually not cause your problem. If all good, then problem could be valves in pump leaking causing the pump to become very hot. This is a visual inspection by removing the head. Finally the electric motor uses sealed bearings and cannot be lubed, only replaced due to age. Good luck

Posted on Mar 24, 2009

  • 146 Answers

SOURCE: 1 HP 3 Gallon Air Compressor does not build up pressure.

it sounds like the regulator is out of whack turning down increases air pressure. make sure there is no leaks

Posted on Jun 28, 2009

  • 494 Answers

SOURCE: Craftsman 1 HP 4 Gal air compressor runs and

Cold weather will freeze the water the compressor normally makes and this can prevent the switch diaphragm from releasing.... also drain the tank

Posted on Feb 14, 2010

  • 1388 Answers

SOURCE: Electric Motor running slow

Century / Magnetek motors are used on many compressors but usually is an upgrade to have the option to easily switch from 110 to 220. Dewalt, Rol Air, Jenny, Emglo and others are considered high end compressors and come with switch for selecting voltage. One still must change the cord if selecting 220v setting. One thing in common is that 115v motors are never more than 2-3 HP because the amp draw for anything over 2hp is likely higher than 20 amps and would trip most common outlet breakers. You noted that your motor sticker lists 6.5 hp at 15 amp 220v so it could not work with 110v because it would draw over 30 amps and just not be practical. Magnetek motors are very good quality and most always state on sticker 110/220v and show wiring diagram for proper connection. Your compressor was most likely built to be stationary and be hardwired into an outlet/switchbox with heavy duty wiring or special cord to run such a high hp motor. You made a great buy however, because the motor alone lists for several hundered dollars alone. You could replace the motor with a 110v but you would loose the fast performance / recovery of that 6.5 hp motor. Like replacing a v8 engine with a 4 cyl. but expect to pull same load, not likely. Good luck with your purchase, and post again if you have other question.

Posted on Jul 11, 2010

Testimonial: "Thank you, I was starting to think so too.Just don't have the knowledge to say "your right".At this time it'd be easier to change motors. Thank you again. J"

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2 Answers

Will an electric motor with more horsepower and more rpm hurt a compressor pump?

Electric motors seem to turn around 1125 rpm or 3600 rpm. The pulley size on the motor and pump must be adjusted to achieve the desired result without overheating /loading the motor. I have seen pumps turning from 800 to 1200 rpm using different pulley size on motor, motor hp and motor rpm. Some brands will turn same pump from 1200 to 3600 rpm depending on if was electric or gas motor. This will certainly shorten the life of the pump but will most likely work. Most turn an average of 1200 rpm for good balance of long life and good supply of air. Pump rpm is usually limited to the power of the motor. Cost effective match of 1.5 hp motor will turn pump about 1000 - 1200 rpm for about 5cfm. Rol Air 2hp motor turns 2 cyl pump about 1100 rpm for 10 cfm. Good luck

Mar 17, 2015 | Campbell Hausfeld Tank Air Compressor, 1...

1 Answer

Can i get a wiring diagram for a westinghouse type FJ motor. it has a B145 frame; 1 phase; 110 v; westinghouse part #NO-1008

because it is 110 volts any work by yourself will be dangerous. take it to an accredited electrical motor rewinder for what you want and be safe.

Mar 06, 2015 | Miscellaneous

1 Answer

Slow speed

hi what happening to the battery power indicator while this happens ?

if you are sure the batteries are okay , look at the connections to the rear axle, making sure they are a good clean connection, you be amazed the problems with those connectors...

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3.The output stage of the controller is breaking down....


Mar 21, 2014 | Shoprider Dasher 4 Adult Scooter

1 Answer

Motor whine when under power heartway PF5

Hi, well it's the bearings normally, the end connected to the gearbox, this a stress area for the motor, personally i wouldn't worry unless it actually slowing down or grinding , vibration so enjoy...


Feb 14, 2014 | Electric Mobility Health & Beauty

1 Answer

3 Gal, Craftsman Air Compressor. Builds pressure to about 20 psi, no further. While it was running, it bogged down and sounded different. I felt around the entire compressor for any leak, but only found...

It sounds to me like the motor is shot, Bogging down at 20psi makes me suspect the brushes are gone. No good contact on the brushes or even just a bad connection of the power cord will cause it to heat up and lose power under load. Check for worn or lose power connection first, then see if the motor brushes are replaceable. The brushes would be under a screw type cap on the motor with a spring holding the actual brush in contact. You will have more than one so give it good look over.

Mar 04, 2011 | Craftsman 3 gal. Air Compressor, 1 hp,...

1 Answer

Sears/Craftsman air comp./paint sprayer mod# 106.154881 3 hp 30 gal. starts fine - pressure builds to 20# then motor boggs down then restarts over and over.

Your wire to the motor is too light a gauge wire or you are using too small of a gauge electric cord on it.
For a three HP motor you will need to use at least a 10 gauge wire or cord on a thirty amp. circuit...


Feb 22, 2011 | Craftsman Air Tools & Compressors

2 Answers

Hi, I have an old IR Type 30, two-stage compressor, model #: V242 N3. The current motor is 3hp, 1 ph,1740 rpm and may need to be replaced. Is it safe to use a full-speed, i.e., 3450 rpm motor on this...

no you need to use a compressor duty motor same rpm using a higher rpm motor will shorten the life of the motor if you have 3 phase power even better single phase motors aren't as efficient and run much hotter and dont last very long on air compressors

Aug 22, 2010 | Ingersoll Rand Type 30 Electric Driven Two...

1 Answer

Unit slows down ,bogs down

check the belts , if there not lose then the incoming power could be low or the motor could be going bad.

Apr 19, 2010 | Ingersoll Rand - Rand Type - 30...

1 Answer

Howdy, I just acquired an air compressor, ''Westinghouse Air Brake Co., Type Y 3YC, SN 136848. I am wondering about parts motor config, cfm output, psi, etc. It appears to be a 2 stage & I'm thinking...

We have a Westinghouse 3YC air compressor. The safety relief valve in the line between the two compressors started "popping off" recently. The compressor seems to be working fine. Is this a problem only with the relief valve or could there be a symptom of a more serious condition that we should be attending to? The valve is stamped 60 max which I assume is 60 psi. Is this the correct size. The tank pressure is set for125 psi. The tank relief valve is marked 250 max.

Sep 12, 2009 | Air Tools & Compressors

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