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Posted: 8/31/2015 5:55:44 PM EST
... Google gives info overload - not sure who to believe because many surely are quacks

ARFCOM A/C professionals, when it gets humid here my coils tend to freeze over (I think) and airflow seems to drop off

I can maintain a 20F differential, but the house struggles to cool like it used to when the unit was new 5 years ago (13.5 SEER)

Link Posted: 8/31/2015 5:58:04 PM EST
to stop it from freezing up, you have to determine why its freezing up. they generally freeze up for 2 reasons. low freon or low air flow. if the air flow is good and filters clean, you're probably low on freon.
Link Posted: 8/31/2015 5:59:42 PM EST
I've had mine freeze becasue the filter was dirty as hell... I stay on top of that now
Link Posted: 8/31/2015 6:00:23 PM EST
fpni

mine was low freon, I had a pinleak in the copper tube carrying freon from the unit.


Link Posted: 8/31/2015 6:01:36 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By byron2112:
I've had mine freeze becasue the filter was dirty as hell... I stay on top of that now
View Quote


This literally happened to us this past weekend. World of difference just by changing the filter.
Link Posted: 8/31/2015 6:03:30 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Bones45:


This literally happened to us this past weekend. World of difference just by changing the filter.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Bones45:
Originally Posted By byron2112:
I've had mine freeze becasue the filter was dirty as hell... I stay on top of that now


This literally happened to us this past weekend. World of difference just by changing the filter.


.... Cleaned the coils last weekend and complete took filters out to test this theory (no help), so it must be Freon - right?
Link Posted: 8/31/2015 6:03:57 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By legonas:
to stop it from freezing up, you have to determine why its freezing up. they generally freeze up for 2 reasons. low freon or low air flow. if the air flow is good and filters clean, you're probably low on freon.
View Quote


Yep. It is good to take a water hose and gently wash out the coil at least once a year. More often if you have trees like cottonwoods that give off stuff that can plug up the coil.
Link Posted: 8/31/2015 6:04:26 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Winston_Wolf:


.... Cleaned the coils last weekend and complete took filters out to test this theory (no help), so it must be Freon - right?
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Winston_Wolf:
Originally Posted By Bones45:
Originally Posted By byron2112:
I've had mine freeze becasue the filter was dirty as hell... I stay on top of that now


This literally happened to us this past weekend. World of difference just by changing the filter.


.... Cleaned the coils last weekend and complete took filters out to test this theory (no help), so it must be Freon - right?

I would say yes.
Link Posted: 8/31/2015 6:05:08 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Winston_Wolf:


.... Cleaned the coils last weekend and complete took filters out to test this theory (no help), so it must be Freon - right?
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Winston_Wolf:
Originally Posted By Bones45:
Originally Posted By byron2112:
I've had mine freeze becasue the filter was dirty as hell... I stay on top of that now


This literally happened to us this past weekend. World of difference just by changing the filter.


.... Cleaned the coils last weekend and complete took filters out to test this theory (no help), so it must be Freon - right?

You have a leak somewhere.

My bet is condenser coil, it can be very small.

Sometimes recharging can tide you over for a year or so, but you will eventually run out.
Link Posted: 8/31/2015 6:06:39 PM EST
Also go outside and shop vac the drain tube. After that put in 2 cups of bleach, let it sit a couple hours. Sometimes they get clogged up.
Link Posted: 8/31/2015 6:08:03 PM EST
Clean your coils and toss some new filters in there.
Link Posted: 8/31/2015 8:02:35 PM EST
Don't use it
Link Posted: 8/31/2015 8:55:31 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Winston_Wolf:


.... Cleaned the coils last weekend and complete took filters out to test this theory (no help), so it must be Freon - right?
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Winston_Wolf:
Originally Posted By Bones45:
Originally Posted By byron2112:
I've had mine freeze becasue the filter was dirty as hell... I stay on top of that now


This literally happened to us this past weekend. World of difference just by changing the filter.


.... Cleaned the coils last weekend and complete took filters out to test this theory (no help), so it must be Freon - right?

Yes
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