Eastwood QST-30/60 Scroll Air Compressor blowing oil from pressure switch 

We manufacture similar scroll compressors so I think I have an idea on what’s going on. 1) your usage for the compressor must be really low (2) you must be in a cold or high humid area. Condensation happens when the compressor does not run hot enough. You can sort this issue by adding a thermostatic valve between the oil line and cooler. This will ensure that only if oil is heated up above a particular temperature it will go to the cooler. So the compressor runs hot and moisture does not stay in the tank.

Same problem here. I added a timed auto drain to the air tank and filters; so, I have no problem with compressed air moisture. The Scroll compressor runs in an oil bath (unlike some other brands that are oil-less). The scroll compressor generates moisture that stays in the oil bath. When the water in the oil tank builds up sufficiently (to excess of tank design capacity), it has to go somewhere and goes to the pressure relief valve. A water/oil mix exits the pressure relief valve and makes a mess. There is no disclosure of this issue in sales advertising or in the operating manual. I had the issue after several months of operation. It took me a while to figure out that the oil/water mix was all coming from the pressure relief valve. At first I thought it was somehow coming from the air tank drain plumbing I assembled; it was not. After research and watching this video, I checked and found the oil tank was way over-full. I drained the water that had seperated from the oil to the bottom of the oil tank. There was more than a quart of water. The oil tank level went back to normal, between the fill lines. I have talked to Easterwood several times. First they said I over filled the oil (my fault/not true), that I should drain it and refill to just over the lower fill line of the dipstick (contrary to manual instructions that say fill to the upper FULL line). Then on another call they said drain it down to 1/4 above the lower fill line, but don't fully drain and refill. Then in another call they admitted that they get many calls about this, two per day, and sent me the written instructions to drain water from the oil tank every week (which leaves water contaminated oil in the compressor). They said that they have no other fix for this and have none in the works. I explained my concern about having water inside the compressor and developing rust on the metal parts, thereby limiting the life. They agreed to take it back, and to refund by way of a gift card only redeemable at Easterwood. I have not yet received the refund or shipping authorization or instructions, but they are probably just busy this time of year. I live in East Texas with a normal humidity of 85%. I like the quiet performance of the unit, but I would not buy it again unless I moved to Arizona. Maybe operation in an airconditioned shop would work.

Thank you for this video, I was considering buying one. I’ll wait until they make some updates.

This literally just happened to me 30 minutes ago. Thank you so much I was freaking out.

I own an Older cast iron USA made reciprocating single-stage compressor that's for the weekender. I've had it around 25 years or so, I was really intrigued when I first heard about this scroll compressor (it's pretty affordable for the average homeowner). This doesn't sound like "normal" service interval maintenance work. Eastwood definitely needs to do some creative engineering to take this out of the homeowners hands regarding maintenance upkeep. Thanks for sharing, guess I am keeping my Old School Campbell Hausfeld.

Man, I had the same issue with oil spewing out. When I called them a month ago they told me I might have too much oil in from the factory. Which was true. They sent me a replacement pressure switch also. I’ve been ok so far. Ridiculous to have to keep separating the water yourself for as much as we spent on these things. I love this thing but I really hope they come up with a permanent solution.

Hello Oldman,,,,i too have a 55 chevy truck....anyway,,,,,,i'll tell you ALL what i know about my 30/60 scroll compressor. When i bought mine ,,,i wanted to follow the INSTRUCTIONS FOR FILLING TO A "T" .because of the price. I FILLED THE COMPRESSOR TO THE LINE THAT IS MARKED BY THE MANUFACTURER> what eastwood won't tell you is "THE INSTRUCTIONS AND MARKINGS ARE WRONG.! you should only fill the tank halfway up to the line no fuller ! I asked them why the marking is on the stick and they told me it was wrong and you should only fill it to half of that.....if you go any higher it creates tooooooo muuuucchhhh preessssuureeee!!! I also asked them why they won't fix the instruction booklet that comes with it or add a notation to the email attached to the purchase. Mine works fine now.....only a small amount of residue after the slllloooowwwwwwbbleed down of the relief valve.

That's insane, thanks for posting this, I would be PISSED off spending 3k for this after shipping for this unit. I'm so glad I held off and didn't buy this damn thing. Taking it apart once a week is crazy, Thanks but no thanks....

just got back from eastwood buying new oil, been dealing with this for 2 years, they just launched a new water separation kit, basically a chamber you mount on near the oil tank and can drain the water to a separate tank and then drain, im gonna get it, cut an access panel in the cover so I can do it without taking the cover off.

Im dealing with a new issue now, that orange relief valve under the filter and separator above the oil tank there is blow off constantly, I think im getting some back pressure somehow idk.

how about a line from the bottom of tank to another tank with a viscosity valve inbetween. That way water at the bottom of the tank is pushed through the viscosity valve and into the 'water tank' but when oil reaches the line the viscosity valve doesnt let it through. And a manual valve in between to close pressure while draining the water tank.

Is this a Chinese made product? Weekly mx is a bit excessive. Thanks for posting, I was considering this as an option until I ran across your video. Thank you for informing us.

Sounds like these compressors are a major POS. I'm guessing that's why Eastwood dropped the price on these in just a couple years. I remember Eastwood wanted around $4500 for this model, and wouldn't budge on price. I want a compressor that I don't have to mess with every week. Maybe check the oil level once a month at most, and belts every 3 months. Thank you for posting this video and sharing your experience. Seems like other's are having the same exact issue with light use.

I was an early adopter of the quiet scroll. Mine has been screwed up for a couple of years. Mine sprays oil out of the over pressure relief valve under the water separator. It came to a head when it ran for god knows how long before I went in to a secondary garage that the compressor is kept to hearing it running, popping line crazy and my Ferrari was covered in oil. Customer service was of zero help. It’s now long out of warranty and I don’t care, I’ll buy a Kaeser when it dies. The water separator is a joke.

A painful 9 mins I'll never get back for 1 min of info.

Awesome update! Glad i found this, i was minutes away from placing my order even with the backorder. I am wondering if using it in a conditioned shop space with very low humidity may make a difference? Is your shop humid? My current 30 gallon typically didn't require draining the tank more than once a month and even then not much comes out. They certainly need to address that issue. They should probably use a bladder in the tank to separate the oil and and compressed air completely but still provide the required pressure to feed the oil to the scroll.

Run an engine with water instead of oil see what happens. My guess is that the oil tank mixing the oil and water is not a good thing for the scroll pump mechanism. They need to re-engineer the dryer on the system somehow, or the dryer system on them may be defective.

You could put a bleed on it. Will bleed off the water on whatever time you set it to.

Where are you located do you have a lot of humidity in your shop

Such a shame about these things being designed so poorly. The only other option for a scroll compressor in this price range is vevor. They're a Chinese importing company. I have equipment from them that's proven to be of good quality but damn idk if I want to roll the dice on their compressor.

Mine just spit about $10 of oil on my shop floor. My concern is that this happened after the first cycle after an oil change. Common sense would tell me that all of the water was already drained out of the oil tank so I'm not sure how this is a fix. This thing is going to be a big paperweight in no time. FFS

i would return and get your money back and call Eaton Compressor right away !

Compressed air makes a ton of water, 10 hp of compressor power will make about 5 gallons of water a day. I can't see but you're saying compressed air goes into the oil tank? If so that's a horrible design.

For the money you have to pay for that unit you would think you would never touch it for five lifetimes for me I would not have it

Don’t buy mine is out has not been a year stay away