
WARNING
HIGH VOLTAGE
110 VAC
OR
120 VAC
OR
240 VAC
 
 
 
 
YES
NO
Does your old thermostat’s backplate 
have any of these indicators? 
CHECKPOINT: COMPATIBILITY
Sadly, you might 
not be compatible.
Great, please 
continue to 
the next page.
You can double-check here: 
ecobee.com/compatibility