Aqara W500 (UT-A01E) inconsistent NTC sensor values

Configuration Zigbee
1

Zigbee Thermostats for electrical floor heating give me a headache.

Used Moes for some time but they spam the network.

Now I decided to give the Aqara W500 (UT-A01E) a try. Initial setup disappointing as forced to register with Aqara to choose Zigbee over Thread - anyway got that done and it seems to work ok.

One thing I realized is that when I use the NTC sensor it is not receiving a constant value but keeps changing every 5-10 Seconds in the range of 0.2-0.5 degrees Celsius. Could any body confirm a similar behavior?

IMG_4211
IMG_42111841×694 130 KB

1 Like
2

I have the same issue, but more extreme. Do you use zigbee2mqtt or ZHA?
To control the heating reliably I set the hysteresis to 1,5°C which helps, but is not really cool.

image
image2844×906 102 KB