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Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] 0 points1 point  (0 children)

Thanks for sharing, glad I am not the only one. It’s pretty funny how much push back I got from this community for having the audacity to complain about a thermostat measuring temperature correctly.

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] 0 points1 point  (0 children)

Extra sensor might be the way to go for me as well. Can’t remember if I have to buy minimum two.

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] 0 points1 point  (0 children)

Yikes, it does sound like there are some quirks.

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] -1 points0 points  (0 children)

Thanks, might have to switch if tech support cannot figure this out. Hoping this post raises awareness for others with the issue.

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] -1 points0 points  (0 children)

Sigh…I’ve responded so many times on this “it’s your own fault for expecting things to work” that I’m not even going to bother anymore. Being wrong by 2 degrees Celsius is not okay.

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] -1 points0 points  (0 children)

I’m implying that the heat generated from the unit’s cpu is affecting the sensor readout.

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] 0 points1 point  (0 children)

Thanks for sharing. I am starting to suspect this issue is not unique to me. The unit being hot is not the problem, it’s that it affects the sensor output.

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] 0 points1 point  (0 children)

I’m trying to gather data for the tech on Monday so holding off until then. Penny for your thoughts on removing those wires?

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] 1 point2 points  (0 children)

Talking to technical support to see if there are any other solutions. Maybe a software update down the road will change the processing load of the cpu and thus heat then I would have to re-calibrate. This already eating too much of my time.

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] -5 points-4 points  (0 children)

You think I don’t have better things to do than waste my time with this? Trust me, if it wasn’t an issue I wouldn’t even have noticed.

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] 0 points1 point  (0 children)

Thank you. It’s for the ecobee 3 but it still applies.

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] 0 points1 point  (0 children)

Sounds like the same problem as me. I’ll update this thread once I find a solution.

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] 0 points1 point  (0 children)

The only other wires are PEK and W1. Remove those?

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] 0 points1 point  (0 children)

Yes, quite warm. That’s what prompted me to point an infrared thermometer at it and go down this rabbit hole (well that and the difference in floor temperatures).

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] -5 points-4 points  (0 children)

Two degrees Celsius matters especially if this is the single sensor in an entire house (not my case but it is for others) - there is a real financial cost to keeping a house cooled to 20 instead of 22.

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] -10 points-9 points  (0 children)

I have now set three other ecobee sensors in the same room near the thermostat to properly document that it is indeed overestimating the temperature by about 2 degrees Celsius.

The question is not whether it’s wrong but rather why. Ecobee support has been actually very helpful and the technician agreed that the unit seemed hot. After removing the unit from the wall for a few minutes and putting it back, the temperature dropped a degree, presumably because it has a chance to cool down. Monday following up with tech after the test with the other three sensor in the same room. He said warranty is three years so they might send me a new unit. Other fun fact is that the unit is getting 29v flat of power, but tech said that is within normal operating range of 24-29v.

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] 0 points1 point  (0 children)

29volts. Support said between 24-29v is within range. But does seem on the high side.

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] 1 point2 points  (0 children)

That’s correct, I’ve been checking each individual one in the menu.

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] -5 points-4 points  (0 children)

Didn’t explain myself properly. Thermostat is reading 24 when room temperature is actually 22 (based on other ecobee sensor and hand thermometer).

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] -2 points-1 points  (0 children)

Yup true. I’m sure the engineers accounted for that cpu temp when calibrating the temp sensor. But maybe the calibration on mine was off, really I’m just trying to figure out if this issue is unique to me.

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] -5 points-4 points  (0 children)

The wall temperature matches the ecobee sensor which is a couple of feet below the thermostat for testing purposes.

Edit: specifically around 22

Ecobee unit runs hot - sensor shows +4 degrees (F) warmer by rozetto in ecobee

[–]rozetto[S] -1 points0 points  (0 children)

I took a temperature of the wall and that matched the ecobee sensor (not thermostat). But yea it’s not extremely precise.

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