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re: Reasons an AC would intermittently not blow cool?
Posted on 8/4/26 at 6:32 am to Ingeniero
Posted on 8/4/26 at 6:32 am to Ingeniero
Glad you got it sorted out. I have an older programmable thermostat in my house and it works fine. It's not a complicated task to switch them out.
Just make sure you are pretty gentle with those wires. If you break the insulation on a wire (even a little bit) you can cause a short that will have you pulling your hair out trying to figure out why.
Just make sure you are pretty gentle with those wires. If you break the insulation on a wire (even a little bit) you can cause a short that will have you pulling your hair out trying to figure out why.
0
Posted on 8/4/26 at 6:58 am to Clames
I think there's a decent market for thermostats that look like Nest units, but zero smart features.
Sensi 2
This is what you want. Its only wifi, programmable settings, have it on my house and it works great and have had 0 problems so far. its not a "learning" thermostat like Nest, just a digital one you can use from your phone
Posted on 8/4/26 at 9:27 am to Ingeniero
quote:Wow. Mine has never done that to my knowledge other than it blows a bit after the compressor is off and i always assumed that was to get every bit of the cold air to the rooms. Where do i find this setting?
Well I'll be F'd. I just checked my settings and I was "automatically enrolled" to something called Airwave that does exactly what you described. Shutting down the compressor and using the fan to distribute air to "save cooling costs."
Posted on 8/4/26 at 10:21 am to AlxTgr
If you go in the Nest app, click the gear in the top right, it's under the Nest Sense heading. I also turned off eco temps.
There are claims online that the Airwave setting won't kick in if your house is too warm or humid, but it seems like that's exactly what was running. If I run into the problem again I can rule out that setting and will call an HVAC guy
There are claims online that the Airwave setting won't kick in if your house is too warm or humid, but it seems like that's exactly what was running. If I run into the problem again I can rule out that setting and will call an HVAC guy
Posted on 8/4/26 at 10:28 am to Ingeniero
I love my Honeywell thermostat. It doesn't have any of these features, it just has timers you can set for temps, and you can set the fan to auto so it only runs when the A/C is running, circulate so that it will also blow while it is off, or on so that it runs continuously.
That being said, since we're talking A/C issues, what would cause a slimy gunk to accumulate in my condensation drain pump? I've been using a drain line cleaner liquid in there about once a month, but once or twice a year I have to take the lid off and shop vac out some gunk.
That being said, since we're talking A/C issues, what would cause a slimy gunk to accumulate in my condensation drain pump? I've been using a drain line cleaner liquid in there about once a month, but once or twice a year I have to take the lid off and shop vac out some gunk.
Posted on 8/4/26 at 12:05 pm to TU Rob
quote:
That being said, since we're talking A/C issues, what would cause a slimy gunk to accumulate in my condensation drain pump? I've been using a drain line cleaner liquid in there about once a month, but once or twice a year I have to take the lid off and shop vac out some gunk.
Posted on 8/4/26 at 12:10 pm to CrawDude
quote:
CrawDude
Interesting. So I did a little reading, and should probably switch up what I'm using to flush the lines out. Would a small piece of copper in the drain pan help?
Posted on 8/4/26 at 12:18 pm to TU Rob
quote:
Would a small piece of copper in the drain pan help?
I’ve heard of people doing that with the newer 100% aluminum evaporator coils, including HVAC techs, how effective it might be I don’t know, but I don’t see any significant downside in trying.
Posted on 8/4/26 at 12:35 pm to CrawDude
quote:
I’ve heard of people doing that with the newer 100% aluminum evaporator coils, including HVAC techs, how effective it might be I don’t know, but I don’t see any significant downside in trying.
Think I'm going to try it. My air handler is in my basement garage, so I have a PVC tube that drains into a pump, which pumps it up and out in some clear tubing. I've been using a liquid cleaner to keep the lines clean, and haven't had any issues with them getting clogged since I started doing that, but every so often I'll hit the pan with a shop vac. It is fairly small, and only really happens in the hot humid months. I check it when I change my filters and last week noticed the gunk in there. It was thin, maybe only a half inch thick, and in one corner of the pan about 2-3 inches across. I've got some copper pipe fittings I'm going to put in each corner and see how it does the rest of the summer.
Posted on 8/5/26 at 11:08 am to Ingeniero
quote:I looked into it. Unless I am reading it wrong, this is just a feature that blows the remaining cool air out of the system. Mine was on, and I never have problems like what you were describing. I do notice the blower remaining on after the outside unit shuts off, but it's a very short period of time.
There are claims online that the Airwave setting won't kick in if your house is too warm or humid, but it seems like that's exactly what was running. If I run into the problem again I can rule out that setting and will call an HVAC guy
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