Hi, looking for some guidance since the contractors in my area are all over the board on this one. We had the AC coil replaced in my AC unit about 3 years ago. Was told last week it is leaking again. We asked the service tech, why did it fail again already, he said that is the average life span of a unit in FL.
So we are at the position to just get a whole new unit AC unit installed or replace the coil again. We have had a couple contractors come out to give us estimates, and each one has a different answer to the coil questions. They range from Carrier makes cheap coils, to the AC unit was installed incorrectly. That one has caught by attention(and the only one that makes some sense). That sales rep said the unit ducting is incorrect and is causing moisture to form on the coils and degrades them quicker. Has anyone else seen this before?
Also out of many sales guys that came out to our house, only one spent the time to do all the calcuations for heat load etc. His estimate came back recommending only a 4 ton AC unit, instead of the 5 ton I have in the house. This person had some reservation about having to expand a door frame to house a larger unit, so we are not sure if his recommendation for a 4 ton is accurate, or he just does not want to deal with trying to fit a 5 ton unit(which we already have). Is it normal for a home builder to put in a larger than required unit?
Sorry for the long winded explination, just looking for some 3rd parties for guidance who are not looking to make $$ from me.