Mar 24 2008 1.
Attic air handler running constantly.
Due to the chocked filters or blocked duct or maybe for whatever reason if the air flow is restricted then there will be chance of sweating.
Even if your air filter is new you may be using one that s too restrictive for your system such as one designed to remove pollen and allergens.
Get an air conditioning contractor to perform a heat load calculation on your home.
Keeping the fan on creates a more even distribution of heating and cooling circulating the air if you have cold or hot spots in your house like a bedroom above a garage.
Only when it s hot and the thermostat is set to off will the fan activate on its own.
Again it doesn t run constantly.
This is dangerous because the freezing can cause liquid refrigerant to flood back to the compressor and damage it.
And the compressor is an expensive part you don t want to replace.
Your thermostat is set to keep it running.
What you should do.
Your air conditioner can only handle a specific temperature difference between your home and outside.
So you may think of changing the filters or cleaning the air handler ducts to solve the problem.
Typical items that clog condensation lines are algae muck and trash like insulation from the attic.
An undersized system struggles to cool your home which is why it s running constantly.
This is a horizontal flow air handler installed in the attic.
This will determine.
Consider raising your thermostat to a more reasonable level.
Pros to running fan on air conditioner continuously.
As the air flow is reduced the temperature of the air goes below the dew point and causes sweating.
Goodman attic air handler constantly running.
Notice the drain pan under the air handling unit to catch condensation if the primary pan were to overflow.
It s an abnormally hot day.
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This constant running will reduce pressure in the evaporator cooling coil until it freezes over.
This is the secondary condensation pan which is installed under the air handler to save a ceiling.
For better air flow use a filter with a lower merv value.
If your thermostat is set at 65 degrees and it s 95 degrees out your air conditioner will have to run constantly to try and keep up.
Without enough air flowing over the coils the system can t remove humidity and cool the air to the set temperature so it keeps running when it shouldn t.
Start date mar 24 2008.
I haven had a chance to check out the control board but hopefully they is something i came change to disable this behavior.
Also slightly visible is a float switch which offers triple protection against flooding in an attic if the primary drain were to plug up.
