Home ac having problems - freon doesn't seem to be circulating
In article , brassplyer wrote:
Have a Trane central system installed in 88. Model T V030 A140A0 When I last ran the A/C a few months ago it seemed to be working fine. Usually when it fires up, you can hear a shursssshhhhh-shurrssssh which I gather is freon starting to move within the system and you can feel the bubbles in a tube at the front of the air handler housing. Now when I fire it up I get no freon sound and no cool air. The air handler is funning and the fan on the compressor unit outside is running. I depressed the Hi Press fitting a really quick hit just to verify there's pressure and there is. It actually exhibited this behavior years ago when it was newer - a few restarts seemed to get it kicked into gear, but so far no luck. I'm not versed in A/C but am otherwise mechanically inclined, no problem whatsoever digging into things with proper direction. Any primary suspects I should look at before calling someone in? Thanks for all input. One thing you can do is take a clamp ammeter around the 220 line and measure the amps. On mine I measure 6 amps, which probably shows some loss of refridgerent but its still working. older AC will draw a lot more amps. greg |
Home ac having problems - freon doesn't seem to be circulating
That can provide some information. Of course, an older unit
will draw more. A dirty unit will draw more. An under charged unit will draw less. Dirty and undercharged can cancell each other out. -- Christopher A. Young Learn more about Jesus www.lds.org .. "GregS" wrote in message ... One thing you can do is take a clamp ammeter around the 220 line and measure the amps. On mine I measure 6 amps, which probably shows some loss of refridgerent but its still working. older AC will draw a lot more amps. greg |
Home ac having problems - freon doesn't seem to be circulating
Great link! Working that back, led to a list of JPEG files,
that can be printed. http://www.harborfreightusa.com/html/wkend0412/images/ -- Christopher A. Young Learn more about Jesus www.lds.org .. "GregS" wrote in message ... One thing you can do is take a clamp ammeter around the 220 line and measure the amps. http://www.harborfreightusa.com/html.../images/11.jpg |
Home ac having problems - freon doesn't seem to be circulating
On Apr 7, 10:54*am, (GregS) wrote:
One thing you can do is take a clamp ammeter around the 220 line and measure the amps. On mine I measure 6 amps, which probably shows some loss of refridgerent greg As far as I know, there is no consumption of refrigerant in any residential system. If you're low, you have a leak. You fix the leak and refill. There is no periodic topping off of refrigerant that got used up, can't happen. |
Home ac having problems - freon doesn't seem to be circulating
On Apr 7, 10:12*pm, TimR wrote:
On Apr 7, 10:54*am, (GregS) wrote: One thing you can do is take a clamp ammeter around the 220 line and measure the amps. On mine I measure 6 amps, which probably shows some loss of refridgerent greg As far as I know, there is no consumption of refrigerant in any residential system. If you're low, you have a leak. *You fix the leak and refill. *There is no periodic topping off of refrigerant that got used up, can't happen. Yes, but extremely small leaks of a few ounces a year can be almost impossible to find and fix. There are a lot of systems with that problem. The only practical solution is to add a little refridgerant every couple years. |
Home ac having problems - freon doesn't seem to be circulating
There is no such thing as perfect. All refrigeration systems
leak to some extent. When I got my EPA card, the law said we can top off any system with less than 50 pounds of refrigerant. -- Christopher A. Young Learn more about Jesus www.lds.org .. "TimR" wrote in message ... As far as I know, there is no consumption of refrigerant in any residential system. If you're low, you have a leak. You fix the leak and refill. There is no periodic topping off of refrigerant that got used up, can't happen. |
Home ac having problems - freon doesn't seem to be circulating
jamesgangnc wrote:
On Apr 7, 10:12 pm, TimR wrote: On Apr 7, 10:54 am, (GregS) wrote: One thing you can do is take a clamp ammeter around the 220 line and measure the amps. On mine I measure 6 amps, which probably shows some loss of refridgerent greg As far as I know, there is no consumption of refrigerant in any residential system. If you're low, you have a leak. You fix the leak and refill. There is no periodic topping off of refrigerant that got used up, can't happen. Yes, but extremely small leaks of a few ounces a year can be almost impossible to find and fix. There are a lot of systems with that problem. The only practical solution is to add a little refridgerant every couple years. I've had very good luck with a stop leak from the company Cliplight Manufacturing. I use it for systems that have tiny leaks that would require a major disassembly to find. I always pull a deep vacuum on anything that has been rebuilt and use nitrogen to blow through it a few times. When me and my friends install a new system on a job somewhere, the condenser may not be installed until the building or home is ready to be occupied because too many condensing units have been stolen. We will blow the lines and evaporator out with nitrogen, install service valves on the line set, pressurize it with nitrogen and leave it that way until it's time to set the condenser. The good thing about leaving lines and evaporator charged with N2 is that we know if there is a leak or if a carpenter put a nail through a line. http://preview.tinyurl.com/lby8fz TDD |
Home ac having problems - freon doesn't seem to be circulating
On Apr 8, 8:32*am, jamesgangnc wrote:
On Apr 7, 10:12*pm, TimR wrote: On Apr 7, 10:54*am, (GregS) wrote: One thing you can do is take a clamp ammeter around the 220 line and measure the amps. On mine I measure 6 amps, which probably shows some loss of refridgerent greg As far as I know, there is no consumption of refrigerant in any residential system. If you're low, you have a leak. *You fix the leak and refill. *There is no periodic topping off of refrigerant that got used up, can't happen. Yes, but extremely small leaks of a few ounces a year can be almost impossible to find and fix. *There are a lot of systems with that problem. *The only practical solution is to add a little refridgerant every couple years. Yes, that's what many techs do. Shoot a quick squirt in, satisfy the customer, guarantee a return visit next year. Professionals on the other hand know how to fix the leak, and do the job right. |
Home ac having problems - freon doesn't seem to be circulating
On Apr 8, 9:22*am, The Daring Dufas
wrote: jamesgangnc wrote: On Apr 7, 10:12 pm, TimR wrote: On Apr 7, 10:54 am, (GregS) wrote: One thing you can do is take a clamp ammeter around the 220 line and measure the amps. On mine I measure 6 amps, which probably shows some loss of refridgerent greg As far as I know, there is no consumption of refrigerant in any residential system. If you're low, you have a leak. *You fix the leak and refill. *There is no periodic topping off of refrigerant that got used up, can't happen. Yes, but extremely small leaks of a few ounces a year can be almost impossible to find and fix. *There are a lot of systems with that problem. *The only practical solution is to add a little refridgerant every couple years. I've had very good luck with a stop leak from the company Cliplight Manufacturing. I use it for systems that have tiny leaks that would require a major disassembly to find. I always pull a deep vacuum on anything that has been rebuilt and use nitrogen to blow through it a few times. When me and my friends install a new system on a job somewhere, the condenser may not be installed until the building or home is ready to be occupied because too many condensing units have been stolen. We will blow the lines and evaporator out with nitrogen, install service valves on the line set, pressurize it with nitrogen and leave it that way until it's time to set the condenser. The good thing about leaving lines and evaporator charged with N2 is that we know if there is a leak or if a carpenter put a nail through a line. http://preview.tinyurl.com/lby8fz TDD- Hide quoted text - - Show quoted text - I tried that on one system. The compressor was a far bit noisier after adding that sealer. It ran that way for another year or so but it didn't sound good while doing it. |
Home ac having problems - freon doesn't seem to be circulating
jamesgangnc wrote:
On Apr 8, 9:22 am, The Daring Dufas wrote: jamesgangnc wrote: On Apr 7, 10:12 pm, TimR wrote: On Apr 7, 10:54 am, (GregS) wrote: One thing you can do is take a clamp ammeter around the 220 line and measure the amps. On mine I measure 6 amps, which probably shows some loss of refridgerent greg As far as I know, there is no consumption of refrigerant in any residential system. If you're low, you have a leak. You fix the leak and refill. There is no periodic topping off of refrigerant that got used up, can't happen. Yes, but extremely small leaks of a few ounces a year can be almost impossible to find and fix. There are a lot of systems with that problem. The only practical solution is to add a little refridgerant every couple years. I've had very good luck with a stop leak from the company Cliplight Manufacturing. I use it for systems that have tiny leaks that would require a major disassembly to find. I always pull a deep vacuum on anything that has been rebuilt and use nitrogen to blow through it a few times. When me and my friends install a new system on a job somewhere, the condenser may not be installed until the building or home is ready to be occupied because too many condensing units have been stolen. We will blow the lines and evaporator out with nitrogen, install service valves on the line set, pressurize it with nitrogen and leave it that way until it's time to set the condenser. The good thing about leaving lines and evaporator charged with N2 is that we know if there is a leak or if a carpenter put a nail through a line. http://preview.tinyurl.com/lby8fz TDD- Hide quoted text - - Show quoted text - I tried that on one system. The compressor was a far bit noisier after adding that sealer. It ran that way for another year or so but it didn't sound good while doing it. Day before yesterday I had a noisy compressor in a make line at a pizza place. I injected 3oz of Supco88 into the system and it is a lot quieter now. It will free up just about any sticking valve or bearing. http://www.supco.com/Chemicals%20pg7.htm TDD |
Home ac having problems - freon doesn't seem to be circulating
Now, that looks totally useful.
-- Christopher A. Young Learn more about Jesus www.lds.org .. "The Daring Dufas" wrote in message ... Day before yesterday I had a noisy compressor in a make line at a pizza place. I injected 3oz of Supco88 into the system and it is a lot quieter now. It will free up just about any sticking valve or bearing. http://www.supco.com/Chemicals%20pg7.htm TDD |
Home ac having problems - freon doesn't seem to be circulating
In article , TimR wrote:
On Apr 8, 8:32=A0am, jamesgangnc wrote: On Apr 7, 10:12=A0pm, TimR wrote: On Apr 7, 10:54=A0am, (GregS) wrote: One thing you can do is take a clamp ammeter around the 220 line and = measure the amps. On mine I measure 6 amps, which probably shows some loss of refridger= ent greg As far as I know, there is no consumption of refrigerant in any residential system. If you're low, you have a leak. =A0You fix the leak and refill. =A0Ther= e is no periodic topping off of refrigerant that got used up, can't happen. Yes, but extremely small leaks of a few ounces a year can be almost impossible to find and fix. =A0There are a lot of systems with that problem. =A0The only practical solution is to add a little refridgerant every couple years. Yes, that's what many techs do. Shoot a quick squirt in, satisfy the customer, guarantee a return visit next year. Professionals on the other hand know how to fix the leak, and do the job right. I have used some window units for 40 years and still work. When I see thin aluminum cores, you go to wonder. The more efficient the more chance of failure. Now my Cavalier was working great up untill last month when all hell broke loose. The garage man says he tops his off a couple times a year. Last year I was trying to top off my 77 280Z with R134, and it worked for a while, longer than the last time I tried, 15 years ago. I gave away my last can when I sold the car. Compressor leaks are common on the vehicles. My House air sort of seems a little slow, but its only taking 1500 watts and its supposed to be a 2.5 ton. I had window air units taking 23 amps at 220. greg |
Home ac having problems - freon doesn't seem to be circulating
"The King" wrote in message ... On Thu, 8 Apr 2010 08:34:53 -0400, "Stormin Mormon" wrote: There is no such thing as perfect. All refrigeration systems leak to some extent. Why do you lie? Why do bears **** in the woods? |
Home ac having problems - freon doesn't seem to be circulating
Oscar_Lives wrote:
"The King" wrote in message ... On Thu, 8 Apr 2010 08:34:53 -0400, "Stormin Mormon" wrote: There is no such thing as perfect. All refrigeration systems leak to some extent. Why do you lie? Why do bears **** in the woods? Such information is classified and only released on a need to go basis. |
Home ac having problems - freon doesn't seem to be circulating
The King wrote:
On Thu, 8 Apr 2010 20:27:09 -0500, "Oscar_Lives" wrote: "The King" wrote in message ... On Thu, 8 Apr 2010 08:34:53 -0400, "Stormin Mormon" wrote: There is no such thing as perfect. All refrigeration systems leak to some extent. Why do you lie? Why do bears **** in the woods? Bears are mormon too? Naw... They would look silly running around in Holy underwear. |
Home ac - and religious slams
You'd never know -- they wear the holy underwear under their
fur. -- Christopher A. Young Learn more about Jesus www.lds.org .. "Alexander" wrote in message ... The King wrote: On Thu, 8 Apr 2010 20:27:09 -0500, "Oscar_Lives" wrote: Why do bears **** in the woods? Bears are mormon too? Naw... They would look silly running around in Holy underwear. |
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