"Noon-Air" wrote in message
. ..

kjpro @ usenet.com wrote in message
...

"Noon-Air" wrote in message
. ..

#3 If you unit is freezing out side as some one posted?
you have heat pump and it is working in reveres.

Guess again..... overcharge on a piston system will do the same thing.

???

A piston system with a gross overcharge will freeze from the compressor
back
to the evap, whereas if its running real low on refrigerant, or there is
no
airflow, it will freeze from the evap to the compressor. It doesn't matter
if its A/C or a heat pump, it works the same.


What??

I have never come across this and have a hard time imagining it. Normally if
they're grossly overcharged, they'll be slugging the compressor with liquid
refrigerant. That normally happens after a (so-called) service tech charges
the unit with too much refrigerant. Then the unit starts making a noise, so
they condemn the system.

You get the call and find that the unit is overcharged. Recover the
refrigerant and fix the actually problem and then the system normally
operates just fine.

So the question is, how can a system be overcharged, yet it freezes??