3 ms·
If you have the option, a "circ" or timed mode (e.g., 10 minutes/hour) is better than "on" when using air conditioning, as the fan will blow condensed water ba
by quercusa 3y ago
If you have the option, a "circ" or timed mode (e.g., 10 minutes/hour) is better than "on" when using air conditioning, as the fan will blow condensed water back off the coil, raising the humidity you just paid to reduce.
- schiffern 3y agoOn the other hand, if you don't evaporate water off the coil then it stays wet all the time and grows mold quickly. This is very bad for indoor air quality. For this reason I intentionally run the fan after a dehumidification cycle. Yes a small amount of humidity goes back in the air, but it's a small price to pay for non-toxic air! You should probably have your AC unit professionally cleaned and inspected.
- quercusa 3y agoThe water doesn't need to evaporate off the coil; the coils are designed for it to drip off to the drain pan and out to a hose or condensate pump.
- schiffern 3y agoSome water drips off, yes. Some water remains clinging to the coil and contributes to mold growth, especially if it's allowed to remain for long periods of time. After all, if there were no residual clinging water then the fan couldn't "blow condensed water back off the coil", which was your original concern. ;-)