Roof top AC

Considering teh cost of service, IF it is leaking you are going to be paying and paying and paying,,, Even if you do it yoruself R-134 or whatever it uses is getting kind of pricy.. And if its not 134a.. VERY pricy and possibly a license needed to buy (Depends on the specific coolant).

Consider this.

But first.. CLEAN the dang thing.. Since I last posted in this thread (just after cleaning) I've yet to trip that breaker. Unit is working 100% air is cooler (Though it still can't compete with Georgia SUN.. But at least it is livable)

The age of the unit would be another deciding factor as pierce mentioned... The most important thing is to get cold air blowing in the coach... no matter what it takes..

How old is it? If 10 years or more, I would go ahead and replace.

william mcbride wrote:
Presto... It may be a leak that takes 2 years to leak down.. I just hate to throw hundreds of dollars at a project before exploring all options..

They only hold 16 oz of Freon. ANY leak, most common is a cracked line will just get worse. Almost ALL leaks happen within a few days. MOST are catastrophic and happen at once. Doug

Pardon the double post.... I didn't think my first reply to you posted.

Presto... It may be a leak that takes 2 years to leak down.. I just hate to throw hundreds of dollars at a project before exploring all options..

Presto.... I would fix the leak.. If it can't be fixed it may be a leak that takes 24 months to leak down.. I'm just saying I wouldn't take off the unit and trash it for a new one just yet...

william mcbride wrote:
I would have a charging port brazed into the line and charge my unit after first seeing if the mentioned cleaning was done.. You would otherwise be throwing away a unit that just needs freon... People sing whatever song cost you the most when wanting to sell something.

1. How do you braze a charging port without losing the existing Freon????
2. HOW and WHY would you charge a unit if it has lost Freon---IF it has lost Freon, there is a leak somewhere and the new Freon will just leak out if you do not find and fix the leak. These are SEALED systems with no way to leak other than a cracked/hole in a line.
3. The COST to find and fix a leak and then solder on the charge ports and evacuate and recharge would cost close to 50% of a complete new unit. NOT cost effective on a unit more than 5 years old. Doug

william mcbride wrote:
I would have a charging port brazed into the line and charge my unit after first seeing if the mentioned cleaning was done.. You would otherwise be throwing away a unit that just needs freon..

If you could find someone to braze in a charging port and charge the unit(most places refuse to touch a sealed unit that was not designed to be recharged) what have you gained? It is a sealed unit and if it is low on Freon it has a leak. The leak would still be there.

I would have a charging port brazed into the line and charge my unit after first seeing if the mentioned cleaning was done.. You would otherwise be throwing away a unit that just needs freon... People sing whatever song cost you the most when wanting to sell something.