Questions tagged [compressor]

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25 votes
7 answers
119k views

Should I release the pressure out of an air compressor when it is not in use?

Just got a new compressor and I wondering if I should be releasing all of the pressure out of the unit when it is not in use? Or is it better to leave the pressure in so that the unit does not have ...
Milos Petrovic's user avatar
13 votes
8 answers
431k views

What's the minimum recommended compressor HP/PSI to spray paint?

I have a little compressor that I use for a small brad nailer and blowing up tires. Is there a minimum PSI or horsepower that I need to be able to get to in order to spray paint with it?
MattGrommes's user avatar
12 votes
5 answers
23k views

Should I leave the drain open on my compressor for storage?

I just got a new air compressor for occasional finish nailing and tire inflation. I understand that I need to open the bottom drain to let out any condensation (i.e., this question) after each use. ...
kmm's user avatar
  • 532
9 votes
6 answers
115k views

Prevent air leaking from couplings on an air compressor hose

I recently purchased an air compressor. When I turn it on without a hose attached, it seems to work fine. It gets up to 140 PSI and shuts off the motor. As soon as I attach the hose, I can't get ...
Stephen Ostermiller's user avatar
7 votes
10 answers
6k views

Time to Replace Central AC?

Have a 2004, Rheem, Model #: RAMC-048JBZ; R-22 refrigerant. We live in Central Texas, very hot 5 months a year, we use the AC probably 7/8 months a year. Have had annual maintenance performed since ...
David H.'s user avatar
6 votes
5 answers
28k views

How do you break in a new air compressor?

Just got a new craftsman air compressor (33 gal). I have read that it is important to "break in" the unit by running it with the pressurized chamber open (so that there is no load on the motor). How ...
Milos Petrovic's user avatar
6 votes
5 answers
37k views

Which pipe to use to top-up refrigerant in a freezer?

My freezer is apparently slowly leaking refrigerant. I sent it in for repairs a few years back, but now it is failing with the exactly the same symptoms: compressor working non-stop, temperature never ...
haimg's user avatar
  • 1,193
5 votes
3 answers
2k views

Can I use a nailer with a higher consumption than my compressor's SCFM rating?

Can I run a pneumatic nail gun with a consumption of 4 SCFM max on a small portable 1HP compressor with a SCFM rating of about 3 SCFM @ 90psi? What about tools that with higher SCFM consumption say 5 ...
OrganicLawnDIY's user avatar
4 votes
4 answers
1k views

Is my chest freezer compressor bad?

I have a ~6 year old chest freezer (Magic Chef HMCF7W2) that has stopped freezing. I read online that a common reason for this was the PTC Starter going bad, and replacing it will fix the problem. I ...
kicken's user avatar
  • 320
4 votes
3 answers
4k views

Is it normal for an air compressor's tank to have something inside it?

I recently bought an air compressor for airbrushing and other uses. I'm not familiar with air compressors so I was wondering if it was normal for the air tank to have sand/gravel inside it? When I ...
Jack's user avatar
  • 343
4 votes
1 answer
137 views

Inserting a Tee In 1" Pipe for an Air Compressor?

I have a copper pipe outside my house that is 1" in diameter (Measured 1.1 inches using a digital caliper) that feeds our house's sprinkler system. My dad uses his commercial air compressor to clear ...
Sarah Szabo's user avatar
4 votes
2 answers
4k views

HVAC is suddenly blowing room temperature air—compressor, fan still turn on

I intend to call a repair person, but I just want to make I've exhausted possibilities that don't involve messing with the refrigerant lines. The A/C was working yesterday with no problems (outdoor ...
Tahlor's user avatar
  • 187
4 votes
1 answer
848 views

Is it safe to mount a medium-sized air compressor to the floor to stop or limit vibrations?

I have a 220V 6hp 33gal oil-less horizontal air compressor that aside from being noisy rattles all over the floor. Stock Image: I would like to either mount it to the floor or build a small frame/...
Jason's user avatar
  • 2,051
3 votes
6 answers
31k views

Where can I get an air compressor that can blow air (not just inflate tires)?

I have been able to find this and this, but they don't come with the fitting/handle that allows you to blow air - for instance, if you want to blow dust from your keyboard, etc. Does anyone know ...
marcamillion's user avatar
3 votes
2 answers
1k views

15-year-old fridge goes "clunk" at end of cycle

Started happening a few years ago, unclear whether it has gotten any louder or whether there's anything that makes it better or worse. I don't think it was this bad when new, though. Functionally, ...
keshlam's user avatar
  • 28.6k
3 votes
2 answers
3k views

How do I increase the volume of air going into my lawn sprinkler zones to blow out water for the winter?

I have a 13 Gallon tank in my compressor. I can get the pressure up to over 100 PSI, but when I allow air to flow into individual sprinkler zones, the pressure at my manifold reads only about 10-15 ...
Neil's user avatar
  • 31
3 votes
1 answer
192 views

Where is the compressor run capacitor on my GE refridgerator GTS22WC?

I have a GE refridgerator GTS22WC, manufactured in 2003. Both the freezer and fridge are warm. The compressor doesn't turn on. I checked the relay resistance (between 5 and 6) and it is 5.5 Ohms and ...
irritable_phd_syndrome's user avatar
3 votes
3 answers
136 views

Help diagnose a compressor problem

My fan on my A/C compressor unit seems to start and even spins up to a reasonable speed, although not quite the speed at which it ought to spin, but then 5 seconds later slows down to a very low speed ...
Wynne's user avatar
  • 1,541
3 votes
1 answer
358 views

What type of air hose should I use?

I have the compressor which can be seen below and I would like to connect one of the the two Alligator Compressor Nipples. Question Will the hose work with the first nipple? Does there exist a ...
Jasmine Lognnes's user avatar
2 votes
2 answers
243 views

Should HVAC registers be closed or open when HVAC is broken, & window AC units are in use?

The property in question in located in a hot climate, with high-90's being regular during the summer. The compressor has died on the property's HVAC, and for the time being, the space will be cooled ...
trytobeuseful's user avatar
2 votes
3 answers
309 views

Moved compressor from one outlet to another. Now it trips the breaker. Same circuit. Different outlet. Why?

I had a single phase 115v ac compressor connected to a 20A circuit. It worked in that location for many years. Recently, I moved the compressor to another outlet on the same circuit. Now it trips the ...
Mike Galatean's user avatar
2 votes
5 answers
6k views

Fridge turns on when banging it

My Kenmore full fridge intermittently turns off, and the only way to turn it back on is to bang it on its side. When it is off, unplugging it and plugging it back in doesn't help, neither does ...
harvey's user avatar
  • 141
2 votes
2 answers
6k views

Can a window A/C unit be installed on its side? [closed]

I have a very small window (narrow) Can you install an A/C on it's side and run or will it burn up the compressor? Thanks Jerry
Jerry Cochran's user avatar
2 votes
2 answers
925 views

How long should I wait to plug my fridge back in if I haven't moved it?

I plan to use a fridge as a temperature-controlled fermenting chamber, and I'd like to use some spare electronics to DIY a temperature controller that works by turning on and off a relay that sits ...
anto418's user avatar
  • 21
2 votes
2 answers
621 views

Want to drain/change compressor oil, but there's no outlet

I have an air compressor; the brand was supposedly Karson but it's actually a rebranded Fiac compressor. I wanted to change the oil; but I realized that it has a window-level, no actual dipstick and ...
Gregorio Litenstein's user avatar
2 votes
3 answers
405 views

Switching power to an air compressor

I have an air compressor for running tools in my garage. I recently moved the compressor to the basement and put an accumulator tank in the garage ceiling. I did this to reduce noise in the garage ...
Billy's user avatar
  • 31
2 votes
1 answer
9k views

HVAC making sound even when off

At Thermostat Fan was on Auto Cooling was On Outside Unit was making noise. Outside Unit Fan not coming on at all Next to the compressor on the Wall there was On Off Switch, I turned off power ...
SeanClt's user avatar
  • 169
2 votes
2 answers
578 views

Shouldn't a compressor automatically stop compressing on a predefined PSI level?

I just received a new E.C.SMART 25/2500 DARI compressor. It came without any owner manual, and I couldn't find a manual on the net. When I turn it on, the main PSI level goes to the red zone and doesn'...
stdcall's user avatar
  • 123
2 votes
1 answer
150 views

Having issues fitting 1-14 UNF threads from a gas cylinder

I'm working on a DIY system at home that involves parts from different locations and industries, which means I'm running into many thread adaptor-related issues. I have a gas cylinder that I'm trying ...
J H's user avatar
  • 21
2 votes
3 answers
430 views

Can I upsize my air conditioner if I have a two-speed compressor?

The upper floor of my house has a split A/C, three-ton. When the temperature gets up above about 95 Fahrenheit, the unit can't keep the upstairs cool. That means that for a few weeks a year, my kids'...
Stephen Collings's user avatar
2 votes
3 answers
3k views

A small air compressor for cleaning? [closed]

I'm looking for a small air compressor for a small air compressor that I can use instead of a compressed air can for dusting my home electronics. From looking at websites like Amazon or Home Depot, ...
ThePiachu's user avatar
  • 121
2 votes
3 answers
2k views

What size air hose would a mechanic's garage require?

I'm looking for a retractable air hose for my husband as a birthday present...he is an airplane mechanic and has many air tools, also has a large air compressor already (not sure of the hp, but it is ...
Wanda White's user avatar
2 votes
2 answers
220 views

Can I use this hose with my air compressor?

I have the below compressor, and would like to use it for pumping my bike. Does the below hose and gun work with it? And what is the metal button at the end of the gun for?
Jasmine Lognnes's user avatar
2 votes
1 answer
2k views

How can I replace a NEMA 6-30 cord & plug with a NEMA 14-30 cord & plug?

I recently purchased a used SA-6E compressor from a dive shop I work with. I had to switch out the NEMA 6-30 plug to a NEMA 14-30. This was done with a complete new plug and cable. I connected the ...
Sam Shiraishi's user avatar
2 votes
4 answers
52k views

Does a compressor with a short to ground really require a complete system replacement?

My 24 year old home A\C went out some time Sunday morning. I had a tech come out and look at it, and was told that the compressor is shorted to ground, and that this means I have to replace the entire ...
John's user avatar
  • 536
2 votes
1 answer
567 views

Can an isobutane (R600a) compressor be safely and legally removed (leaked)?

I have a reasonably modern (but not valuable) fridge with a functioning compressor that I'll nevertheless likely replace. I would like to salvage the compressor. According to the manual, the ...
OJFord's user avatar
  • 175
2 votes
1 answer
4k views

Which way should the water separator be fitted to an air compressor?

I bought a water separation filter for my new compressor. The water separator didn't come with any good documentation. Here's what came in the pack: A diagram on the packaging: The device: The ...
transporter_room_3's user avatar
2 votes
3 answers
29k views

Temporary fix for bad contactor?

After doing some replacement for the ac, the contactor stopped working. It won't close when I turn the ac on. when I pushed it in, the compressor was able to start. I can't go out to find a new one ...
alt's user avatar
  • 33
2 votes
1 answer
18k views

Standard duty cycle of fridge compressor?

I have a refrigerator which has compressor duty cycle of about 50% percent. It’s set on 2 out of 5 which is the highest setting. It basically works for 12-13 minutes and then it’s of for about 16 ...
Jalgo Jalgić's user avatar
2 votes
2 answers
1k views

Emerson Liebert Air Conditioner Fan Runs Abnormal

We have 2 Emerson Liebert air conditioners inside a datacenter. Issue is not a home issue but devices are all same and I supposed finding some expert here. Here is the thing: This 2 devices are ...
aiternal's user avatar
2 votes
1 answer
224 views

How much usable air in an air compressor?

I'm trying to figure out how long a small 3 Gallon compressor tank will last in between the compressor kicking on and off. I know the tank volume, and cut-in/cut-out PSI, and my approximate SCF usage ...
float13's user avatar
  • 41
2 votes
1 answer
10k views

How do I estimate the energy consumption of a ductless mini-split A/C unit?

I'm designing a "solar RV" built from a cargo trailer with PV panels mounted on the roof. Currently, I'm listing the expected electrical loads so I can size the solar system and battery bank ...
Bungle's user avatar
  • 223
1 vote
1 answer
1k views

Is a PVC union air tight?

I have 1/2" PVC ran from my compressor to a hose real hanging on my ceiling. It works well, but I would like to add a PVC union around the last bend just before the reel. Would the union be tight ...
Gary's user avatar
  • 165
1 vote
5 answers
30k views

Air Compressor Quick Connect Coupler Won't Latch

Background: I just purchased a new air compressor. I was surprised to see that the collar on the quick connect coupling is retracted (I'm used to pulling the collar back to insert the male fitting), ...
David C's user avatar
  • 131
1 vote
1 answer
7k views

Help: Wiring 220V in garage to NEMA 10-30r because MIG welder and air compressor have 10-30p

I've reviewed many articles on this website as they've been referred by my Google searches. But most have been about dryers. I have an older air compressor (240V, 60Hz, 15A, 5hp) and a MIG welder (...
DrMuffn's user avatar
  • 11
1 vote
4 answers
598 views

How can I convert a 220v outlet to a 110v outlet?

I have a 220 volt pond aerator compressor that I'm going to replace with 110 volt unit. Can I wire and keep the same power cord with the 6-15 plug and receptacle and just swap out the 220 connection ...
Commander David's user avatar
1 vote
2 answers
94 views

Can you operate / permanently install an air compressor in freezing temperatures?

My garage is heated but it's attic is not. The attic is accessible and could make a good location for a large air compressor - saves space & could muffle the noise. But the annual temperature ...
StayOnTarget's user avatar
  • 5,495
1 vote
3 answers
3k views

Refrigerator intermittently making loud clicks with compressor banging and shaking

Facts: 9 year old Whirlpool refrigerator has been operating quietly for 9 years. Refrigerator has two doors and is top-freezer/bottom-refrigerator configuration. About 3 months ago, it would ...
kermit's user avatar
  • 111
1 vote
1 answer
2k views

Can a normal fridge be quieter than one with inverter compressor?

I can't decide between Liebherr CN 4015 and Panasonic NR-BN34FW1 Both are good candidates for me but not sure about the brands, and my major concern is the noise. I was led to believe that inverter ...
Firsh - justifiedgrid.com's user avatar
1 vote
2 answers
9k views

HVAC tripping breaker - things to check before replacing?

HVAC system (we're in Houston, it's still hot here) stopped working Tuesday. A/C guy came out, determined it was tripping breaker. Would trip immediately after resetting, but after a couple of ...
Jason's user avatar
  • 313