[SOLVED] Temperature rule producing "Unknown variable or command '>' " error

Setup, Configuration and Use Scripts & Rules
9

It seems Temperature_Ext is a QuantityType item, which sadly makes comparisons even more difficult in rules.

Here is a thread talking about it, but basically you need to change your comparison from

if (TempVol > 20 &&...

To

if (TempVol > 20|°C &&...

Edit: you might need to remove the as Number statement as well. I haven’t personally worked with QuantityType items, so not sure how it should be done best.