Questions tagged [compressor]

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1 answer
62 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 ...
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1 vote
1 answer
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Turning HVAC on/off using the circuit breaker

So my thermostat is fried. Had a very capable HVAC technician take a look at it and he found this out. I have ordered a new one but it isn't going to be here for the next 2-3 days. I live in Texas and ...
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2 answers
75 views

Compressor for spray gun and pneumatics tools

I have a general question that I can't find answers to : can I use a commercial compressor that will provide pressure for all the tools that I have in my wearhouse and use the same compressor for my ...
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2 votes
2 answers
240 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 ...
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1 vote
1 answer
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Our AC isn't cooling to the set temperature

Our AC isn't cooling to the set temperature. We got one tech from Company-A to come and he said that the Freon is a bit low. So, on hot days, they can't keep up. But our unit has an older R22 Freon, ...
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Do buzzing and chirping noises indicate a failing refrigerator?

My refrigerator was starting to run loud a few months ago. It was very over due for a cleaning - afterwards it wasn't as loud. Today it started to chirp at me and make a general high pitched noise. It ...
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2 answers
71 views

Two reducers in-line from air compressor to air tool?

Previous house owner run PEX pipe in the garage from a 60 gal air-compressor to multiple hose reels. One of them developed a leak and I had to cut through copper pipe to remove it - it was all hard-...
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-2 votes
1 answer
126 views

Why do compress air cans always seem to avoid mentioning their main use? [closed]

In the last couple of years, I've finally started buying cans of compressed air to blow out the dust from inside my computer, instead of using my lungs as I have done in all the years past. It feels ...
1 vote
4 answers
209 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 ...
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0 answers
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Why does my fridge turn itself off?

My KitchenAid fridge intermittently turns off, and the only way to turn it back on is to turn off thermostat to off and then back to on (setting 1/2/3/4/5). Any idea what is the issue?
0 votes
1 answer
61 views

Swap split system head unit

We have a Daikin split system, 1x compressor and 3x head units, connected like this: The head units are pretty ancient (models FTK35HVEA and FTK25HVEA), but the main issue is the vanes do not swing ...
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2 answers
321 views

Fridge Tripping GFCI but not when compressor is unplugged

I have a 12 year old GE Fridge in my garage that stopped freezing & cooling a few weeks ago. I diagnosed it as a bad relay and replaced it. Things ran normally for about 2 weeks and then one day ...
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2 answers
324 views

Why does my compressor make a loud squealing noise as HVAC system shuts off?

Is it a dangerous condition if the compressor makes this squealing noise? I left my home for two weeks and when I came back my condenser fan motor wasn't working. So my compressor was running non-stop ...
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1 answer
137 views

Copper pipe drain hole attachment to blow out water line?

Trying to winterize better. Copper pipe feeds normal garden water hose. How would one attach an air compressor Attachment to thread on here to blow out water line? to this to blow out? If you ...
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1 answer
99 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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1 answer
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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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1 answer
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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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1 answer
61 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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1 vote
0 answers
190 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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0 answers
22 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 votes
3 answers
194 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 ...
0 votes
1 answer
244 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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1 answer
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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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-1 votes
2 answers
499 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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0 answers
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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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0 votes
1 answer
285 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 ...
0 votes
1 answer
79 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 ...
0 votes
2 answers
691 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 ...
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3 answers
379 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 ...
0 votes
2 answers
36 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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-3 votes
1 answer
169 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 ...
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1 answer
106 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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284 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 ...
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0 votes
1 answer
53 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 votes
1 answer
33 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 votes
1 answer
235 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 ...
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1 vote
1 answer
77 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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-1 votes
1 answer
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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?
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2 answers
188 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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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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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 ...
1 vote
2 answers
61 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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2 votes
1 answer
150 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 ...
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2 votes
4 answers
3k 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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0 votes
2 answers
257 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 ...
1 vote
3 answers
1k 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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0 answers
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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 ...
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1 vote
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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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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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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 ...