It sounds like your central air conditioner has a leak.
"installed Freon 4 times a summer"
That is way too much. You should have told that to the techs, so he knows.
I don't know what years your central air conditioner is. If it old years, it uses R-22 If it new R-410a.
It will save you money by finding the leak and repair it.
Jun 02, 2010 Rating
Freon problem by: barney mac
I have the same problem but we installed Freon 4 times a summer what should we do
May 19, 2010 Rating
icing/frost evaporator coils by: Anonymous
frosting due to:
1. drier choke
2. low refrigerant charge
3. filters dirty
4 evaporator coil clogged no air flow
5. fine leak
6. oversize unit
7. TXV failures and also low pressure switch fail to open contact
Apr 30, 2010 Rating
Reason evaporator coils have frost by: Shawn
There could be a lot reason why evaporator coils have frost and here is few.
1. lack of airflow across the evaporator
2. leak within the evaporator coils (small leak)
3. not enough refrigerant
4. Metering device restriction
5. Blower motor not running (airflow)
6. Dirty ac filter
7. Duct
This is just the top of my head. There could be more reason when I start thinking.
