Original message
| davidw221
 |  "Humidity"
, posted Sat 27 Sep 08:35  
I have a humidity issue at my house, I have an american standard, 24K heatpump with a 36000K A coil, counterflow, system.
I am running into an issue when the air conditioner is running the humidity sky rockets, with the system off and it is about 48% when I have the system on the humidity runs about 75%, I had the HVAC guy put a clear plastic window in the condensate drain, which doesn't drain at all, matter of fact the drain pan doesn't have any water in it at all.
I think the coil is bad, the air conditioner portion does cool the house. My question is do I need a new A coil, I think I do, but I don't know, I had several Techs come to the house, and they can't figure this out, now I am coming here to get answers, I have plenty of vents, both in the crawlspace, and the attic, so thats not an issue. My electric bill has a 34% increase in usage in the last several months, useage not dollar amounts.
I've also added a dehumidifier to get rid of the humidity when the air is on. I've slowed down the fan on the furnace too.
Help folks.
I'm at my wits end, I don't want mold in my house either.
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Replies:
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| theduke03
| "Re(1):Humidity" , posted Sat 27 Sep 10:42
I think you may be crazy. Perhaps your techs couldn't find the problem because there isn't one. Your A coil cannot add humidity to the air because it does not contain water. Your electric usage has increased over the "last several months" because said months are summer months. If your condensate drain didn't drain you would have a flood.
Is your humidity sensor located where cool supply air is blowing on it? If so try moving it close to a return grille.
"My dad was the most feared furnace fighter in Northern Indiana."
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| | yuri
| "Re(2):Humidity" , posted Sat 27 Sep 10:58
The unit is low on freon/ not cooling properly and removing any moisture from your house. The elec bill is high because it ain't shutting off and doing its job. Find a tech who can show you the temp drop from return to supply ducts and check the freon level etc. It should be at least 15 deg F.
Yuri
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