Refrigerant evaporator leaking

  • Thread starter Christopher Finke
  • Start date

C

Christopher Finke

I have a Lennox central air system in my house (installed about 20
years ago), and just this season, puddles of water have started to
appear underneath the refrigerant evaporator. The strange thing is
that it appears that it only happens after the A/C shuts off, not
while it is running. We'll run it for hours with no water appearing,
but then we shut it off and overnight, a couple liters of water appear
around the base of the furnace and evaporator.

I checked the hose that drains the pan that the water collects in, and
it is clear. I tried pouring over a gallon of water straight into the
bottom of the evaporator, and it all drained just fine.

Any ideas as to what the problem could be? We're wondering if it
might be related to another problem we have - one of our outdoor
faucets will spray water out of it about 10 seconds after you turn it
off, kind of like the pressure is building up after the water stops
running. Is it possible that something similar is happening with the
water that is supplied to the A/C? What might cause it?

Chris
 
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T

Tekkie®

Christopher said:
I have a Lennox central air system in my house (installed about 20
years ago), and just this season, puddles of water have started to
appear underneath the refrigerant evaporator. The strange thing is
that it appears that it only happens after the A/C shuts off, not
while it is running. We'll run it for hours with no water appearing,
but then we shut it off and overnight, a couple liters of water appear
around the base of the furnace and evaporator.

I checked the hose that drains the pan that the water collects in, and
it is clear. I tried pouring over a gallon of water straight into the
bottom of the evaporator, and it all drained just fine.

Any ideas as to what the problem could be? We're wondering if it
might be related to another problem we have - one of our outdoor
faucets will spray water out of it about 10 seconds after you turn it
off, kind of like the pressure is building up after the water stops
running. Is it possible that something similar is happening with the
water that is supplied to the A/C? What might cause it?

Chris
It's old - it's incontinent - let it
out...
 
N

Noon-Air

Christopher Finke said:
I have a Lennox central air system in my house (installed about 20
years ago), and just this season, puddles of water have started to
appear underneath the refrigerant evaporator. The strange thing is
that it appears that it only happens after the A/C shuts off, not
while it is running. We'll run it for hours with no water appearing,
but then we shut it off and overnight, a couple liters of water appear
around the base of the furnace and evaporator.
Sounds messy
I checked the hose that drains the pan that the water collects in, and
it is clear. I tried pouring over a gallon of water straight into the
bottom of the evaporator, and it all drained just fine.
yup

Any ideas as to what the problem could be? We're wondering if it
might be related to another problem we have - one of our outdoor
faucets will spray water out of it about 10 seconds after you turn it
off, kind of like the pressure is building up after the water stops
running. Is it possible that something similar is happening with the
water that is supplied to the A/C? What might cause it?
Several things can cause it, first is not having it services regularly.
 
C

Christopher Finke

The strange thing is that it only leaks after the A/C shuts off.
I've just confirmed this. When I shut off the A/C after it ran for
about 2 hours, a puddle of water immediately started coming out from
under the unit. It was also accompanied by a faint hissing sound,
kind of like tire slowly deflating. The hissing sound stopped at
about the same time the puddle stopped growing.

Chris
 
B

Bubba

I've just confirmed this. When I shut off the A/C after it ran for
about 2 hours, a puddle of water immediately started coming out from
under the unit. It was also accompanied by a faint hissing sound,
kind of like tire slowly deflating. The hissing sound stopped at
about the same time the puddle stopped growing.

Chris
Its just a phase you system is going through. It usually takes about 3
months and then it stops happening. Just ignore it. It will go away.
Bubba
 
N

Noon-Air

Christopher Finke said:
I've just confirmed this. When I shut off the A/C after it ran for
about 2 hours, a puddle of water immediately started coming out from
under the unit. It was also accompanied by a faint hissing sound,
kind of like tire slowly deflating. The hissing sound stopped at
about the same time the puddle stopped growing.
Maybe you should call for service
 
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C

Christopher Finke

Get in there and clean that twenty year old sleazy, scummy,
drain pan. That probably has bacteria growing for the last twenty
years. Or, call a licence professional to clean your mess. And then
complain how much it costs. Some times our job is real glamorous.
I probably will be calling a professional tomorrow to get some quotes
on fixing it - I just wanted to make sure it wasn't something simple
like a plugged drain somewhere that I could fix myself. I'm mostly
interested in what's causing it and being able to understand the issue
before the technician gets here so that I can talk about it
intelligently, not just mumbling the "water everywhere air conditioner
help me help me" babble I posted above.

BTW, we've lived in this house for a little over a year, and both the
A/C and furnace were serviced in the month before we moved in.

Chris
 
N

Noon-Air

Christopher Finke said:
I probably will be calling a professional tomorrow to get some quotes
on fixing it - I just wanted to make sure it wasn't something simple
like a plugged drain somewhere that I could fix myself. I'm mostly
interested in what's causing it and being able to understand the issue
before the technician gets here so that I can talk about it
intelligently, not just mumbling the "water everywhere air conditioner
help me help me" babble I posted above.
All you need to tell the tech is that its leaking water, then let him/her do
their job.
FWIW, I don't know of any company that does estimates for *repairs*, only
for new systems.
BTW, we've lived in this house for a little over a year, and both the
A/C and furnace were serviced in the month before we moved in.
FWIW, it needs to be serviced twice a year...once in the spring for cooling
and again in the fall for heating.
 
G

Guest

Stormin Mormon said:
Without being there to see, my best guess is dust under the coil.
The water is dripping off the inside bottom of the coil.

OTOH, someone else will have a different thought.

Yeah, like someone with a *clue*.
 
H

hvacrmedic

I have a Lennox central air system in my house (installed about 20
years ago), and just this season, puddles of water have started to
appear underneath the refrigerant evaporator. The strange thing is
that it appears that it only happens after the A/C shuts off, not
while it is running. We'll run it for hours with no water appearing,
but then we shut it off and overnight, a couple liters of water appear
around the base of the furnace and evaporator.

I checked the hose that drains the pan that the water collects in, and
it is clear. I tried pouring over a gallon of water straight into the
bottom of the evaporator, and it all drained just fine.

Any ideas as to what the problem could be? We're wondering if it
might be related to another problem we have - one of our outdoor
faucets will spray water out of it about 10 seconds after you turn it
off, kind of like the pressure is building up after the water stops
running. Is it possible that something similar is happening with the
water that is supplied to the A/C? What might cause it?

Chris
The water in your condensate line and the water in your plumbing have
nothing in common. Also there is no water "supplied" to the AC unless
you have a humidifier attached to it. In that case, you could have a
defective atomizing humidifier or humidifier control circuit. With the
blower running the water will vaporize, once the blower stops all of
that water spray will just run out the first hole it comes to. Without
more information there are a number of possible causes for the
overflow, such as a cracked drain pan, partial frosting of the coil,
no trap installed on the condensate line, partially restricted drain
line....just a few of the possibilities.

You might have to take some sandpaper and dull the fins on the coil to
keep the water from dripping off of it, or at least that's what
someone we know would have suggested. I don't particularly recommend
it though.
 
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Guest

"DANgER" <"danger"@heat.com wrote in message
CLAP CLAP CLAP!

Wow I am impressed KYpro has actually said something correct. There is
water in the human head. Now you just need a brain
to go with that H2O!!!

HAHAHA

2EZ2OWNU! ;)

-Canadian Cool

I see that went right through your head with no comprehension. LOL
 
B

Bubba

I probably will be calling a professional tomorrow to get some quotes
on fixing it - I just wanted to make sure it wasn't something simple
like a plugged drain somewhere that I could fix myself. I'm mostly
interested in what's causing it and being able to understand the issue
before the technician gets here so that I can talk about it
intelligently, not just mumbling the "water everywhere air conditioner
help me help me" babble I posted above.

BTW, we've lived in this house for a little over a year, and both the
A/C and furnace were serviced in the month before we moved in.

Chris
A quote on a repair? Yer killin me.
Honestly, if you called me for a quote on a repair like that Id
probably just tell you to keep on walking your fingers through the
yellow pages.
Maybe Id just laugh and hang up. Kinda nasty hot and busy here so Id
probably just hang up. :)
Bubba
 
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T

Tony

Barry said:
Get in there and clean that twenty year old sleazy, scummy,
drain pan. That probably has bacteria growing for the last twenty
years. Or, call a licence professional to clean your mess. And then
complain how much it costs. Some times our job is real glamorous.


Barry



Subject: CLEANING



A young couple got married and left on their honeymoon. When they

got back, the bride immediately called her mother. "Well," said

her mother, "so how was the honeymoon?"

"Oh, Mama," she replied, "The honeymoon was wonderful!

So romantic..."

Suddenly she burst out crying. "But, Mama, as soon as we returned

Sam started using the most horrible language - things I'd never

heard before! I mean, all these awful 4-letter words! You've got to



come get me and take me home. PLEASE MAMA!"



"Sarah, Sarah," her mother said, "calm down! Tell me, what could be



so awful. WHAT 4-letter words?"



Please don't make me tell you, mama, "wept the daughter" I'm so

embarrassed they're just too awful!

COME GET ME, PLEASE!!!"



"Darling, baby, you must tell me what has you so upset. Tell your

mother these horrible 4-letter words!"



Still sobbing, the bride said,

"Oh, Mama...words like: Dust, Wash, Iron, Cook......."



"I'll pick you up in ten minutes," said the mother.



have nice day



Tony
 

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