outside fan off, water in evaporator pan?


  #1  
Old 08-16-16, 08:28 AM
G
Member
Thread Starter
Join Date: Aug 2016
Location: USA
Posts: 4
Received 0 Votes on 0 Posts
outside fan off, water in evaporator pan?

Hi,

I am a newbie to this site so this is my first thread.
I know there are a lot of knowledgeable people out there so I am hoping someone can help me with this home A/C problem.
Last week the upstairs in my house was getting hotter and the A/C was not coming on, I checked the outdoor unit and noticed there was a ball of ice on
the supply line. So I turned the thermostat fan to "on" and turned the cool/heat setting to "off". I changed the air filters and ran the fan for a few hours which fixed the problem.
Now this week the outdoor unit is not running (fan not spinning and no "hum" from condenser). There is some air coming out the indoor vents which is not cold but slightly cool. I checked in the attic and noticed there is some water in the evaporator pan. I'm assuming the float switch has tripped and the system will come back on once I have drained the evaporator pan.
Is there anything else I should check (blocked drain line etc)?
Does anyone have an idea as to what else could be the problem?

many thanks!
 
  #2  
Old 08-16-16, 09:10 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Jersey
Posts: 70,136
Received 2,966 Votes on 2,676 Posts
Welcome to the forums.

You need to identify the float to see if the water level is activating it.

An air handler installed in an attic should be installed over an overflow drip pan. If you have water in the overflow pan then it most likely means the condensate pan inside the air handler is overflowing due to a clogged drain line.

You'll need to locate and clean the drain line(s). Sometimes they need to be cut to be cleaned.
Others have used a shop vac to suck the clog out of the line.
 
  #3  
Old 08-16-16, 12:17 PM
G
Member
Thread Starter
Join Date: Aug 2016
Location: USA
Posts: 4
Received 0 Votes on 0 Posts
Smile

Thanks Pete, I will try that later today
 
  #4  
Old 08-17-16, 09:39 AM
G
Member
Thread Starter
Join Date: Aug 2016
Location: USA
Posts: 4
Received 0 Votes on 0 Posts
Hi Pete,

I shop vac'd the water out of the pan yesterday and the system came back on.

I was wondering about cleaning the drain line, it is not easily accessible from outside the
house as the line elbows down just above the ground. I might be able to reach underneath
the air handler and put the shop vac nozzle where the drain line meets the pan?
I wanted to see if the condensate pan inside the air handler was actually overflowing
due to a clogged drain line. I opened the side panel of the air handler but did not see
a condensate pan, so I assume I was looking in the wrong place but all the other
areas of my Lennox Merit Series (horizontal) air handler/furnace seem to be inaccessible.

Thanks again for your help.
 
  #5  
Old 08-17-16, 09:49 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Jersey
Posts: 70,136
Received 2,966 Votes on 2,676 Posts
Look for the white PVC drain line. That will connect to the condensate pan.

I can't help you much in locating a place to clean the line from as I can't see it..... but it must be done soon. If the drain line is still plugged the condensate will overflow again.
 
  #6  
Old 08-18-16, 09:39 AM
G
Member
Thread Starter
Join Date: Aug 2016
Location: USA
Posts: 4
Received 0 Votes on 0 Posts
I am going to try and get the shop vac where the pvc pipe meets the pan.
I was also going to try and spray some water down the pvc pipe from
where it meets the pan, maybe that would flush the clog to the outside?
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: