Results 14 to 19 of 19
09-12-2012, 10:51 AM #14
As I understand TAM4, TAM7, and TAM8
09-12-2012, 11:31 AM #15
The last cause is the setting of the t-stat. Raise your setting of the t-stat a couple degrees during cool outside temps to avoid below freezing coil temps. Fan "on" mode also will quickly defrost a coil that is partially frozen.
Wide dead band t-Stat will freeze up sooner than narrow band stats.
Regards TBBear Rules: Keep our home <50% RH summer, controls mites/mold and very comfortable.
Provide 60-100 cfm of fresh air when occupied to purge indoor pollutants and keep window dry during cold weather. T-stat setup/setback +8 hrs. saves energy
Use +Merv 10 air filter. -Don't forget the "Golden Rule"
09-12-2012, 03:41 PM #16New Guest
- Join Date
- Sep 2012
Thank you for all the great input.
Based upon what I read here, I asked another company to come out and take a look to get a fresh perspective.
They more or less concurred that both units need to be replaced. The coolant in the outside unit WAS low, apparently about 3/4 of the way gone. Although they didn't say that the outside unit had any problems re: coil, they concurred that the coil in the Inside unit was rusted and needed to be replaced.
They said they wouldn't recommend cleaning the coil because of the age of the Unit (1996) because cleaning it could damage it.
So it's looking like I need to replace the whole system and will look for the most affordable option. I think calling out a third company is overkill.
09-12-2012, 03:41 PM #17Professional Member*
- Join Date
- May 2008
Are you using pleated 1" wide air filters? The reason I ask is because these highly restrictive air filters will CAUSE the indoor unit to freeze up within just a couple of weeks!! Go to the less restrictive throw away filters and quit using the pleated (zig zag type) filters!!
09-12-2012, 08:27 PM #18Professional Member*
- Join Date
- Jul 2006
If it can be budgeted i would replace it all ,i also beleive that the evaporator is still made for the unit and could be replaced .The governent can not give anything to someone that it has not first taken from someone else
09-13-2012, 08:29 AM #19
Don't misunderstand I am not saying that you shouldn't replace the inside unit but I don't think you are getting the complete story on the condition of your equipment or what the actual problem is. AS I and others have said you need to have the airflow checked first, then once that is correct start to look further into the problem if it is not fixed.
It is hard to make a good decision with bad info.