Frozen Coils in Air Handler


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Old 04-30-17, 05:36 AM
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Frozen Coils in Air Handler

Yesterday was the first time I ever noticed water dripping from my soffit vent.

1. I first cleared condensate line. I used a shop Vac to do this it was extremely clogged. I did this in my bathroom, and both side of the p-trap. It was extremely clogged with sandy like dirt.

2. I noticed that the coils on the handler were frozen. The coils though didn't seem to be overly dirty. I also replaced the air filter about a month ago. I turned the system off and allowed them to completely de thaw.

Is there anything I can do other than to turn the system back on?

I planned to monitor it for 24 hours before calling out a pro.
 
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Old 04-30-17, 06:30 AM
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There's a few things that can cause this, low air flow, system low on refrigerant. Take a tissue and tape one end to a register . Then start the unit and see what kind of air flow you get. Lets us know.
 
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Old 04-30-17, 08:08 AM
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I'm actually getting great air flow
 
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Old 04-30-17, 10:03 AM
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Probably a lack of refrigerant or a stuck outdoor contactor.

Does the outdoor unit turn off when you satisfy the thermostat?
( thermostat on cool mode but the setpoint is above the room temperature)
 
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Old 04-30-17, 10:41 AM
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Yes it had been turning off when it was satisfied until yesterday when I noticed the water coming from the soffit. Then I turned it off completely.

It's cooler here today it's 69' inside today. Should I run it for a while to test this? Try to get it to 68'
 
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Old 05-02-17, 12:03 PM
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I had someone come out and they added a few lbs. I was told 5 of R-22. He told me I had a leak or bad valves based on the way that he put it in. He recommended a new system? It's a 4 ton Trane.

Any other options?
 
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Old 05-02-17, 12:25 PM
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Hmmm...5 lbs ? some techs say you need a new unit no matter what it is. What is the model and serial number on the Trane ?
 
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Old 05-02-17, 01:08 PM
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How long has it been since it was last charged ?
That size of a leak over a short period should be relatively easy to find.
 
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Old 05-02-17, 03:37 PM
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It's a 4 ton Trane XL14i. I'll grab the serial number here in a second. We've lived here 4 years. It hasn't been charged since we moved in.
 
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Old 05-02-17, 04:55 PM
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