Nest Thermostat E74 Error

Nest Com E74. Nest Thermostat Rh Wire Not Connected Eco Play Here's a detailed video on how to replace the fuse Both this fix and/or cleaning out your drainage pipe should have done the trick

E74 Nest Error Google Nest Community
E74 Nest Error Google Nest Community from support.google.com

Press the ring on your thermostat and hold it down until the screen turns off (about 10 seconds) This usually happens when you get a clogged drain an.

E74 Nest Error Google Nest Community

Wait for few seconds and check the RH wire status on the Nest Thermostat display This usually happens when you get a clogged drain an. Your HVAC system can have multiple breakers so make sure to turn them all off before moving on.

E74. Wait for few seconds and check the RH wire status on the Nest Thermostat display The Google or Nest logo will appear when it begins to start up

E74. To manually restart your Nest thermostat: Nest Thermostat E and 3rd gen Nest Learning Thermostat If your fuse burns out your system may stop sending power to your Nest Thermostat and cause one of the following codes might appear on your thermostat: E3; E4; E23; E24; E73; E74; 1