Hi Ilikeyofayce,
Thanks for posting here in the Community forum and for showing interest in our Nest Thermostats.
Are you located in North America or Europe? I only see W and R terminals on your Emerson Model 1950t M30 thermostat. Could you tell me where the yellow wire is connected? You may use our Compatibility Checker to help you determine if a Nest thermostat is compatible with your heating and cooling system.
i'll look forward to your response.
Best,
Zoe
