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re: Larger copper line on my outside AC was frozen yesterday...advice?
Posted on 6/1/17 at 9:27 am to LSUperior
Posted on 6/1/17 at 9:27 am to LSUperior
How old is the unit? I work around the AC field, except with chillers for commercial and industrial applications. All the guys that make big units (Trane, Mcquay, York) make splits for home ac and there is a huge difference in quality in the last 15-20 years there. If you have a 20 year old ac from a brand you've never heard of, it will run forever and need little maintenance. But a 5 year old Lennox or Carrier is essentially a piece of shite.
1
Posted on 6/1/17 at 9:27 am to LSUperior
quote:
LSUperior
Where are you located?
Posted on 6/1/17 at 9:35 am to Giantkiller
gonna hijack OPs AC thread, sry OP
Q: once my unit cools the house down to the preferred temperature inside (auto setting), the outside fan stays running outside, never shutting off.
the only way i can get the outside fan to shut off is to click the thermostat completely off.
is this something i can take care of myself or will i need to get an AC electrician out here?
Q: once my unit cools the house down to the preferred temperature inside (auto setting), the outside fan stays running outside, never shutting off.
the only way i can get the outside fan to shut off is to click the thermostat completely off.
is this something i can take care of myself or will i need to get an AC electrician out here?
Posted on 6/1/17 at 9:38 am to LSUperior
I 'throw all my money away in rent' so I never have these problems....
Posted on 6/1/17 at 9:43 am to BabyTac
Change your filter if it's dirty!
If that doesn't work, you're probably low on Freon.
If that doesn't work, you're probably low on Freon.
Posted on 6/1/17 at 9:45 am to LSUperior
If the line outside is frozen then most likely the A coil inside is frozen too. Turn off the AC and let the fan run & it will defrost pretty quick. At a minimum you need refrigerant , which means a leak somewhere. Leak detection can be costly. I'd just make sure it has the proper amount of refrigerant and let her rip. It might buy you another year of needing a new coil or possibly entire new AC unit.
Posted on 6/1/17 at 9:48 am to LZ83
quote:
How many square feet is your house?
Just under 1900.
Posted on 6/1/17 at 9:50 am to ItzMe1972
quote:
Change your filter if it's dirty!
I've changed my filter recently and pretty regularly.
Posted on 6/1/17 at 9:54 am to LSUperior
quote:
advice?
Probably low on coolant.
Turn it off
Have an HVAC person come out to clean your coils and top off the coolant.
Posted on 6/1/17 at 9:54 am to ConfusedHawgInMO
quote:
If the line outside is frozen then most likely the A coil inside is frozen too. Turn off the AC and let the fan run & it will defrost pretty quick. At a minimum you need refrigerant , which means a leak somewhere. Leak detection can be costly. I'd just make sure it has the proper amount of refrigerant and let her rip. It might buy you another year of needing a new coil or possibly entire new AC unit.
When you say "leak"...you mean a leak in one of the copper lines? Sorry, but I'm far from an AC expert lol (medical field).
Posted on 6/1/17 at 9:57 am to LSUperior
quote:
Just under 1900.
Why are you on this board ?
Try the OB
Posted on 6/1/17 at 10:04 am to LSUperior
Sounds like your unit is the right size for your house. Check freon and cold pipes
Posted on 6/1/17 at 10:15 am to LSUperior
quote:
My father-in-law said to turn of the AC at the thermostat asap, then turn only the fan on. Her said this would melt any ice on the evaporator coils on the inside unit, which worked.
Be careful in doing this. I recently had the same frozen evaporator coil issue and used the fan to help to expedite the thawing process. The fan actually blew water into the main distribution chamber area and from there it leaked onto the ceiling giving us a nice water spot.
Having to replace an evaporator coil + having the water spot on the ceiling = Double pissed off
Posted on 6/1/17 at 10:39 am to BestBanker
Restriction in system or low Freon. If it is frozen outside chances are the evaporator coil in upper unit is also froze up. Quick solution cut a/c off on thermostat and run fan only for 45-60 minutes. As the fan pull warm hot air from inside the house through the air return it will cause the ice to thaw on evaporator coil down to low pressure line outside.
Posted on 6/1/17 at 10:50 am to LSUperior
quote:
When you say "leak"...you mean a leak in one of the copper lines? Sorry, but I'm far from an AC expert lol (medical field).
Could be anywhere in your system from the outside unit to the coil inside the house in your air handler. You won't know for sure until you call a tech to come inspect it.
Posted on 6/1/17 at 11:49 am to cajun12
quote:
Your system is low on freon,
Posted on 6/1/17 at 11:50 am to LSUperior
Turn the unit off first of all.
Posted on 6/1/17 at 12:13 pm to LSUperior
Good luck! Our Maytag system(11 yrs old)crapped out two weeks ago. Put in a new Carrier system but even that took 5 days.
Posted on 6/1/17 at 12:20 pm to LSUperior
as long as you aren't using a highly restrictive filter, you are probably leaking somewhere.
Some super high MERV filters can be too restrictive in the wrong applications and can also cause the reduced air flow which can cause freezing if you have the old PSC blower motor and not a newer ECM, variable speed type.
Some super high MERV filters can be too restrictive in the wrong applications and can also cause the reduced air flow which can cause freezing if you have the old PSC blower motor and not a newer ECM, variable speed type.
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