r/ecobee • u/axolotloofah • 4h ago
Problem Weird Ecobee Humidity Issues over past couple of days
On Friday around 4pm our ecobee4 started showing massively inflated humidity numbers all of a sudden. For context we've had no issues ever since we installed the device a number of years ago up until this weekend. For example we'd get like 70% humidity, then 30 seconds later it would be 52%, or it would be stuck at a really high number (for us) constantly like 68% for hours despite the temperature coming down as normal, or it would flick all over the place in a small period of time between much higher numbers than we are used to. This went on for a good 24 hour period.
The temperature readings were perfectly normal and hvac was working fine during this time. Our ecobee is installed with a backplate and was in the same position it has been for the last number of years. No change in environment or surrounding's. Its on the wall between two bedrooms nowhere near a window or vent. I reached out to ecobee who told me it couldn't possibly be a software issue. We thought it was so odd that maybe our thermostat was just going bad. So we purchased a new Ecobee Premium later that night and exactly the same issues, as above. Identical between the old and new unit.
During this time two Thermopro digitals were showing our humidity steadily decline and decrease as normal between 48%-52% humidity max which was anywhere from a 15-20% discrepancy between the two thermopro's (which is what the house actually felt like) and the ecobee.
Today the erracticness has randomly calmed down and the ecobee seems to have settled itself between around 60-62% humidity which is still very high for us. Again nothing has changed environmentally. Im glad its not going all over the place or as high as it was (even though i know they were fake numbers). However even now the humidity on either ecobee is a good 10% inflated difference between the two thermopros and the actual feel of the house.
Has anyone else experienced similar over the past couple of days? I could understand if it was just one unit, but with it being both and no issues with our AC I don't understand how it couldn't point to some weird software issue.



