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16
votes
5answers
18k 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 ...
10
votes
4answers
5k 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. ...
6
votes
3answers
32k 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 ...
5
votes
8answers
121k 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?
5
votes
3answers
417 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 ...
4
votes
3answers
6k 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 ...
4
votes
1answer
337 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/...
3
votes
6answers
12k 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 ...
3
votes
1answer
39 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, ...
3
votes
1answer
678 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 ...
3
votes
2answers
933 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 ...
3
votes
1answer
107 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 ...
2
votes
2answers
141 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'...
2
votes
3answers
125 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 ...
2
votes
2answers
123 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?
2
votes
1answer
502 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 ...
2
votes
2answers
125 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 ...
2
votes
1answer
263 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 ...
2
votes
2answers
171 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 ...
2
votes
2answers
12k 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 ...
1
vote
1answer
517 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 ...
1
vote
1answer
58 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 ...
1
vote
1answer
53 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 ...
1
vote
2answers
347 views

How do I extend existing 10/3 wiring to run a compressor that needs 12/2 wiring?

I am installing a new compressor in my garage. I already have 240V installed to run a kiln. The kiln is only used maybe 10 times a year. My thought is to splice into the 240V line to the kiln to run ...
1
vote
1answer
25 views

Is it ok to have a rise in an air compressors drain valve?

The designer of my compressor unfortunately didn't put a whole lot of thought into where to put the drain valve on it. It's on the back, and the compressor is against the wall, in a corner, usually ...
1
vote
1answer
39 views

Why does my compressor bog down at low pressure?

Just bought an air compressor, and when I turn it on it starts to build up air but when it gets to around 20 psi the motor seems to be slowing down almost to a stop. Does anyone know what's up with ...
1
vote
3answers
107 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, ...
1
vote
2answers
44 views

Attaching Air Compressor To Junction Box

I have a 4 inch metal junction box with a 3/4" mud ring attached and recessed into the drywall in my garage. I want to connect an air compressor to this junction box directly without using a plug. ...
1
vote
1answer
125 views

Need advice on air compressor for home use

I'm in the market for a cheap air compressor. I need it for the occasional spray painting of furniture, inflating and switching of tires. I've been looking at this air compressor: The specs of the ...
1
vote
2answers
1k 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 ...
1
vote
2answers
3k 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), ...
0
votes
2answers
45 views

Brand new air compressor trips onboard breaker on start

I bought a new air compressor from Harbor Freight (8-gallon, 2hp,) and last night I added oil to the fill line, opened all valves, and started it to run it for the break in period (30 minutes with no ...
0
votes
2answers
39 views

Compressor size for HVLP gun?

I have never used an HVLP gun before and am trying to figure out what compressor I need. I will be spraying small, metallic parts. The paint I am using recommends an HVLP gun with a 0.8mm tip running ...
0
votes
3answers
184 views

Problem- air condition- compressor and fan outside not on

I'm new to hvac. My ac was working fine but it decided to die one day. I've been able to fix my ac, but it continues to happen(the same problem), and it is not easy to get to the ac (it's on the roof)....
0
votes
1answer
1k views

Refrigerator won't cool

I have a Danby mini fridge I bought used off Craigslist about 9 months ago. It's worked great until about a week ago when it suddenly stopped cooling at all (both fridge and freezer compartments). Now ...
0
votes
1answer
23 views

How to Seal leaks on an air compressor system

My air compressor machine is leaking at its clamped joint area where the red plastic tubing is connected to a metal joint. I see products on the market meant to seal leaks such as teflon tape and pro-...
0
votes
1answer
54 views

Which way should air flow through this oil/water filter

So, I picked up an oil/water filter for painting with my compressor. Unfortunately, the thing had zilch for instructions, and I'm not sure which way the air should flow. Which side (male threaded side ...
0
votes
2answers
245 views

Can I use this spray gun with my air compressor?

I have a spray gun that needs 4.4 cfm and 60 psi to work. My compressor is only 2.6 cfm but 135psi with a 6 gallon tank and a 2hp engine. Will this setup work to spray paint?
0
votes
1answer
401 views

How can I repair this damaged air compressor?

I have an 8 Gal CH air compressor (HM700099AV). Purchased about 3 years ago. Used for a few months, then stored behind other items in a shed and never drained until a year later. At that same time, ...
0
votes
2answers
86 views

How can I drain a two tank compressor?

I have a 1.5 HP two tank compressor that I have to drain daily. What is the most efficient trap to capture the water oil mixture as I drain it?
0
votes
0answers
14 views

How long should mini fridge compressor run on average? [on hold]

I was recently given a non working mini fridge. I was able to diagnose the problem as the thermostat. I want to run the compressor off of a timer until I get the new thermostat in. About how long on ...
0
votes
0answers
7 views

Refrigerator with newly changed compressor

I fixed a new compressor to a refrigerator, changed relay and overload, all I know was compressor over heat and went off. What could have been the cause for this?
0
votes
0answers
62 views

Absorbing fridge compressor sound

I’m referring to question How to reduce noise from my refrigerator? How effecient is the sound absorption foam in reducing sound? I know it can’t block the sound, but reducing potential echo and ...
0
votes
1answer
578 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 ...
0
votes
0answers
69 views

Breaker for compressor tripping when a/c reaching stage 2

My breaker for the compressor is tripping when my a/c is switching to stage2 in very hot weather. Is there anyone who can give me the steps to troubleshoot this issue?
0
votes
0answers
742 views

AC Compressor outside is not running with new thermostat

my old thermostat stopped working, so I purchased a new one to replace that. The old one was powered by two AA batteries. A green wire connected to G, a white wire connected to W, a blue wire ...