Questions tagged [compressor]

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1answer
34 views

Can you safely have multiple pneumatic regulators in series to step down the pressure to a desired level?

I'm very new to pneumatics. I have recently acquired a 100psi compressor for use in my home wood workshop and would also like to use it for a small airbrush for painting. The target PSI range for the ...
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1answer
57 views

Is my HVAC compressor siezed?

My R22 HVAC system stopped working. Trying to see if there is anything else I can do When the compressor kicks on I hear a buzzing sound (presumably when the capacitor is in start mode) and a hen goes ...
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1answer
46 views

Heatpump Compressor Hardstart Device: What is the active working mechanism?

The original compressor-heatpump starting issue is documented at Air-conditioner fan & compressor fails to start. I installed a new capacitor before the technician arrived. The HVAC technician ...
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2answers
4k views

What size start capacitor should I buy for my refrigerator compressor?

What size (in horsepower) 3-in-1 start capacitor should i buy for my fridge compressor? I have an LG LRSC26922TT from 2003. The compressor isnt staying on due to (i think the PTC hooked to the ...
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1answer
50 views

What should I do if the refrigeration compressor returns oil?

When I was using my refrigerator, I noticed that it returned a little oil. What should I do?
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2answers
49 views

Air compressor valve going off

I have a small air compressor for various small tasks. Lately when I plug it in and turn it on, it starts working to fill the tank and once it's full, I hear the valve releasing the air thus the ...
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2answers
55 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 ...
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0answers
48 views

Heat Pump Compressor not turning on in heat mode

UPDATE 29-MAY-2021: So I have it working now, after playing around with some of the settings in both the Nest Thermostat and the Zone Control Panel. In the "Pro Setup" section of the Nest, I ...
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0answers
16 views

How should I connect new thermostat wires to my heat pump?

I need some direction on troubleshooting my HVAC heat pump. I have recently purchased an older home with a newer heat pump was installed. There was no power to the thermostat. Called repairman and he ...
2
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3answers
172 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 ...
2
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3answers
41k 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 ...
2
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1answer
14k 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 ...
23
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6answers
92k 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 ...
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1answer
40 views

HVAC Issue With Compressor

Every time the compressor tries to come on it pops the breaker. A friend who has worked in AC says its because the compressor is going bad. Is this true?
0
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1answer
80 views

Will cutting the fridge capillary pipe allow the gas to evacuate? [duplicate]

I'm wanting to remove a compressor from a fridge, I need to release the gas(r600a - safe) first. Initially I thought you had to cut or pierce the copper piping attached to the compressor but I've ...
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1answer
131 views

Can I safely cut a copper compressor pipe with r600a gas?

Can I safely cut a fridge compressors copper pipes if it uses r600a gas. I've read of people taking out fridge compressors but I want to check whether it's safe to cut the pipes like this?
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2answers
229 views

How to attach valve to fridge compressor copper pipe without torch? [closed]

I'm trying to make a vacuum pump to pump my car's AC system. I have a fridge outside with r600a gas. I am wanting to take out the compressor and use it as a vacuum pump. I don't even know if the ...
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1answer
99 views

5 hp air compressor wiring

5 hp 80 gal 208/230 volt air compressor, amps 18.6-17.5, LR amps -95, KW- 2.98 Located 80-100 feet from panel--looking for wire size and breaker size thanks John on 230V circuit hp listed on tank ...
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4answers
19k 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), ...
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0answers
30 views

Are compressor pressure switches adjustable or repairable?

I have a craftsman air compressor. It's about 20 years old, but for many years now, if I let it run on it's own, it will always blow the pressure relief valve. I don't need a lot of volume, so I ...
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1answer
42 views

Compressor inside condenser switches off on extremely hot days, makes high pitched noise (video!)

Our AC stops emitting cold air on very hot days (100+). It recovers after about 1h of not running. The condenser fan keeps running, but the compressor switches off. I only recently caught it as it was ...
0
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1answer
55 views

Repurpose old compressor

I recently came across someone who was throwing away an old craftsman air-tank and compressor. They claimed the compressor did now work anymore as it would never build pressure. I had an old ...
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4answers
1k 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 ...
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3answers
189 views

Hooking up my compressor to my dryer outlet

I need to plug in my compressor, which has a NEMA L6-30P plug. I currently have a NEMA 10-30R Receptacle How do I do this? It looks like the ground from my dryer plug is grounded in the box. I do ...
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2answers
314 views

Two zone hvac on single compressor [closed]

I have a two zone HVAC system with two compressors (A and B). When I run the heat on Zone 1, it uses compressor A and when I run the heat on Zone 2, it also uses compressor A. When I run the A/C, it ...
1
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2answers
4k 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 ...
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2answers
23 views

Freezer not working; only makes quiet sound

An old (probably 30-50 years) chest freezer is not working. When plugged in it makes a constant, very quiet sound and does not change temperature. How could I tell what's wrong with it? Is it likely ...
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1answer
89 views

Air compressor first use - plug needs to be replaced? [closed]

I was wondering if anyone could help me with this problem. My brother bought an air compressor recently and found this note. What does that mean, which plug should we replace? This yellow one with two ...
0
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1answer
69 views

Have I correctly identified this part on my air compressor?

I have a Blue Hawk model 0300812 air compressor purchased several years ago from Lowe's. Sometimes, but not always, I get air leaking from here: It doesn't leak from around the threads, as one might ...
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0answers
190 views

Do most modern freezers have compressor delay?

Do most modern freezers have a "failsafe" of some kind to keep the compressor from cycling too quickly? I want to connect my freezer to an external thermostat and I have been advised that ...
0
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1answer
28 views

How to choose a refrigerator? [closed]

what are the features to look for when buying a refrigerator? Such as what capacity is of the compressor? how do I use this information to measure against my usage? Are copper tubing better? What is ...
0
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1answer
122 views

Can Home AC Electrical Whip Cause Compressor Failure?

I have an 11 year old Arcoaire ac unit. The other day we heard a pop sound and noticed a little smoking coming from the electrical whip casing. The part of the casing with the issue is about half ...
1
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1answer
54 views

redirecting some air from outdoor A/C compressor into the attic to cool it down

I can't find any info on this question, and this might be a stupid idea... but anyway: The temperature in the attic is ca. 130F, 3pm, outside temperature 90F. ( Florida, 17y/o house ) Can I direct/...
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1answer
250 views

goodman furnace /ac no y terminal on board (revisited)

My son-in-law's Goodman B1809913S control board only has R, W and G terminals (no Y terminal). In order to make the AC compressor AND the furnace fan operate the Y and the G wires are jumpered ...
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2answers
89 views

Is it OK to underpower a run capacitor?

Have to replace a 55uf MFD 440 Volt VAC (model 97F9042). Is it OK to, at least temporarily, replace it with a 45uf 440V one (model ITAN PRO TRCF45)? (Some specific details of my situation. It's not ...
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0answers
108 views

Are there any physics problems with immersing freezer coils in water?

Given a small refrigerator / freezer (dorm fridge), would there be any reason why immersing the freezer coil in water would reduce or eliminate the ability of the system to remove heat? I took a dorm ...
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2answers
2k views

Can I reduce the grinding and humming noise from my portable air con's compressor?

My portable air conditioner's compressor can get quite noisy, it's like a vibrating pulsing grinding noise. Is it possible to reduce this noise?
7
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10answers
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 ...
2
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1answer
120 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 ...
0
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2answers
149 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 ...
5
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5answers
29k 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 ...
1
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1answer
2k views

Replacing compressor motor (going from 3 wire to 4 wire) and question about wire colors

I am replacing a GE motor with an equivalent Mars motor, they are same fitting size, HP, RPM etc. and volt range 208-230. The wires are different though: The old motor had orange, blue, and black ...
1
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3answers
916 views

Will an AC compressor work upside down?

If an AC system is designed to keep liquid refrigerant out of the compressor, will the compressor be ok if installed upside down? It should only be dealing with gaseous refrigerant, but I don't know ...
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0answers
44 views

Find adapter for an air hose

I bought this adapter to easier fill my car tires with air: (https://ebay.us/vtTY9x) However, the outer diameter of the left side is 1/4" and it has no inner thread. I wanted the left side to be a ...
1
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0answers
31 views

Whirlpool refrigerator (6 year old) stops cooling

My refrigerator stops cooling and I heard clicking and buzzing from the back of it. I then bought new start relay and capacitor and replaced the old ones. But the problem remains (clicking, buzzing, ...
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0answers
34 views

Refrigerator compressor issue?

May have been asked and answered already but GE Side by Side working seemingly fine but i have noticed that when the compressor comes on (I am assuming) it is causing a substantial power draw in the ...
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4answers
5k 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 ...
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0answers
739 views

Can't get air hose to connect back in to compressor

I have a 10gal compressor used to fill up tires mostly. A friend with Alzheimer's disconnected the hose from the compressor. I don't believe he changed any fittings but I can't get the hose to ...
0
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1answer
34 views

AC compressor makes strange constant noise, won't run

My Comfortmaker AC compressor outside makes this strange sound when I turn it on, and the fan in the compressor doesn't run. https://vocaroo.com/i/s0rx9CsN4XaQ Every few seconds it also makes the ...