Air Conditioner

[lenso]

My a/c is warm and the light on the a/c button doesn't light up anymore. does this mean that my a/c is gone? i was thinking about changing the system rather than to recharge it, for sake of saving money in the future. the only thing holding me back is that the newer systems on the older a/c compressors may make the compressors work harder. anyone have experience with this?

[Q45tech]

Think long and hard before converting an R12 system to R134a.As the condenser won't function correctly with the newer gas! At best the system will be 20% less efficient.

[lenso]

Have you heard of Freeze 12? It's supposed to work well with the R12 sustems. No need for flushing or changing of compressors.

[Q45tech]

Freeze 12 is 20% R-142b and 80% R134a

http://www.allchemi.com/eng/re....html

"The R-142B is put in as a mineral oil carrier, but with all that R-134a in the can, you still have to make the system compatible by changing the accumulator/receiver, adding a HPCO switch, and some really weird adaptors since it ain't R-134a, plus your system has to be 100% leak proof so that R-142b won't leak out first as R-134a and mineral oil is not a good mix that can ruin your compressor. But it's all legal.

There are only two homogeneous refrigerants approved and technically correct for MVAC, R-12 and R-134a, each requiring it's own unique oil, but accumulators today are compatible with both refrigerants, as a matter of fact so is BVA-100 Oil.

These other blended alternatives give the impression that a conversion is easy, when indeed they are more problems than they are worth. And I guess it's legal to lie in advertising or to misrepresent, but Freeze12 is SNAP approved, whatever that means. "

Wierd mixtures means always warn the AC shop as they may refuse to work on your system because it will ruin their equipment and contaminate their R12 or R134.