"Robert Gammon" wrote in message
om...
Art wrote:
I've tried 3 different HVAC companies for so-call maintenence service.
All were a complete waste of money. They didn't even clean the inside
coils.


Proper service of AC involves checking ac compressor pressure levels when
the is off

Tells you nothing...not at all, unless its reading zero.


and when it has been running awhile.

Min 15 minutes, with proper superheat/or subcool readings taken.

Add refrigerant, if needed.

More often than not, remove if needed. Most around here are overcharged by
the next door neighbor doing it on the side...


Inspect and clean condenser coils if necessary. Verify proper fan
operation and air pressure inside the housing between the fan and the
evaporator coils. Put bleach down the drain for the evaporator to limit
algae growth.

Never put bleach in a drain....hacks might, but a professional wont. No
corrosive tabs are added, and depending on the brand of the unit, the coil
drain pan itself may lend to this effect of killing mold.

Check air temp of air leaving nearest register when unit is operating.

Umm....no...thats only if its a mobile home...lol


There is much more to a proper service than this, and its why it takes so
long...looks like Im gonna have to pull out the word file and post what
should be done.....



No one, not even the most reputable, do any cleaning of inside coils. In
99.9% of cases, the inside coils are not accessable for cleaning without
COMPLETE removal of the evaporator.


Bet me wrong and lose.

Id say, based upon years of installs, service and repair, only 1% tops
require any major work to get to the coil....if they DO, then the original
installers really screwed someone.