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Thread: Ductless AC Air Filters
08-11-2012, 10:45 AM #1
Ductless AC Air Filters
Would like to get some non-bias feedback on what if any problems result from not running the air filters in the indoor unit. (Besides allowing larger dust particultes to accumulate in the coil.)
08-11-2012, 10:51 AM #2
This isnt a real question. Is it??
08-11-2012, 12:48 PM #3
Why would you do such a thing? Pros- none; Cons- future service call$Chaos equals cash$$$
08-11-2012, 12:49 PM #4
Sorry just read the non bias part.Chaos equals cash$$$
08-11-2012, 01:36 PM #5
Ductless AC Evap Air Filters
Thxs for the reply
08-11-2012, 06:46 PM #6
If you look at a filter and say "Damn, that dirty" Imagine it not being there. That dust will be pulled right into the motor. Causing the motor to overheat and DIE. While that is going on, the dust will collect on the fan blades and they wont have the cupping action anymore to throw the same amount of air as they are designed to do. Dirt will also collect on the heat exchanger of furnace making it not transfer heat as designed to, same for cooling coil. Dirt can also wear down the heat exchanger and cooling coils.....
That is just for beginners, there are more things that can occur, I am guilty of letting a machine run without them for minor amounts of time if it is a size I do not have with me, just to satisfy the house while I run and get the correct size. (Mainly only in heating season though)
08-11-2012, 06:49 PM #7
And its not the fact that the coil is "Dirty" as much as that dirt is an insulator that wont allow heat transfer.
08-11-2012, 10:07 PM #8
I have run into this a few times. Besides the obvious dirty coil, I had one unit that the blower wheel was so caked up with muck that it burned out the motor. You can swap the motors in place, but you are almost better off pulling the unit off the wall. What a wicked pain.
08-13-2012, 07:48 AM #9
08-14-2012, 10:36 AM #10
Filters save a lot of grunt work. On mini-split wall units, which I believe you are asking about, are a pain in the butt to get apart. If pulling a filter and washing it in the sink every now and then prevents that, then go for it. Now, I will say we have some homes that are SO clean that those filters never show any dirt. Now I suppose in a home like that, you can live without a filter. But no telling how much daily cleaning staff costs... but these are 1% type problems. Hahaha
08-14-2012, 02:12 PM #11
08-14-2012, 03:59 PM #12
08-15-2012, 04:27 PM #13Professional Member
- Join Date
- May 2010
- Oxford, UK
Dirty filters will kill the compressor in heating season, so a dirty coil caused by running without filters will only be worse.
Cheaper the unit, the more likely it is to do damage, cheap fixed speed units often have no hp switches or other safeties so will run stupid high discharge temps and pressures and die a death.