replying to Edwin Pawlowski, Self sufficent wrote:
Do the Pros seriously expect us to believe it's harder then recharging and
automobile ?!? (which is common place) After all the braggadocios responces it's
any wonder why we don't call for your paid help in the first place.
If you just want to give it a spritz and pray, put a piercing valve in
the low side and shoot some in. If this is a R134 system it is easy to
get a little can of gas. I would not count on it for a permanent fix
but it might get you through the season.
In alt.home.repair, on Sat, 29 Aug 2015 17:36:27 -0400,
I don't know why I did it but last fall I added "freon" to the car I was
borrowing from a friend. It was silly because the hot weather was
almost over. I didn't use the whole can, the little cans they sell.
8 months later, I opened the valve a bit and there was still freon
inside, under pressure, even though I thought the needle wihich
punctured the top of the can wouldn't make a very good seal.
I shut the valve quickly. I suppose now that my car's working again, I
shoudl put it in that. Een though the AC works well, I did have to add
a can 2 years ago, so there's probably room to add more.
1) EPA certification required. Piercing valve,
manifold gages, charge weight scale, and more.
2) Very often, poor cooling is caused by problems
other than low freon. What's the discharge temp,
the superheat, amp draw, and other data?
On Mon, 31 Aug 2015 09:09:09 -0400, Stormin Mormon
The certification takes about 20 minutes on the internet and if this
is using a modern gas, it is not even needed.
I doubt anyone is doing any of this on a window shaker. They are
really like Bic lighters. You use them until they break and get a new
If someone wanted to gamble a few bucks on a can of 134 to nurse
another month or so out of it, why not. It won't take up any more
space in the land fill.
Most window and portable type units do not have service ports in
them. A licensed HVAC man can install ports so that gauges can be
used. Without gauges and knowledge there is virtually nothing for
DIY's to try beyond cleaning the coils.
The very fact you asked what you did says you do not have the
gauges or the knowledge.
Keep the whole world singing . . . .
This is a sealed system and is not equipted with service valves.
Process tubes are Installed in Compressor Housings during
manufacture for dehydration and charging and these are adapted
by service technicians by the addition of an access valve.
Access valves can be of various types frome line tap to a brazed
schrader access port.
Out of curiosity why do you want to add refrigerant to this Unit
You use a piercing valve on the process stub, or the suction line. I've
recharged AC for myself, and for friends. It's not dificult if you have the
EPA certificate, and some specialized tools and training.
Christopher A. Young
(Using backup computer. In a couple
If incorrectly work on the unit you could do more damage and if money is a
issue then you might want to contact a local vocational school and see if
you could drop off the unit so the students can check it out.
That way they get some experience and you can save some money.
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