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Help. E73 error code. The nest said no power to the wifi

rgaila
Community Specialist
Community Specialist

Disclaimer: This thread was migrated from our previous version of the Google Nest Community. You can continue to receive updates on your thread issue here or simply ask, browse or more in the new Google Nest Community.

Original Poster: Cindy Bumbales 

How do I turn it on to get power?

2 REPLIES 2

rgaila
Community Specialist
Community Specialist
Sorry to hear about your thermostat troubles! I can totally get the frustration behind a drained device. Let's see what's going on here. 
 
An E73 error code means that there is no power detected to the Rc wire. To fix this error, check your wiring, air filter, drain tubes/drip pans, and HVAC fuse and ensure that all of them are working correctly.  Since HVAC systems can have very tricky wiring, and the wrong wire can damage your thermostat/HVAC, we'd suggest contacting a Nest Pro to take a look. 
 
Hope this helps! Let me know how it goes.
 
-From Ai, Community Specialist.

Kandis
Community Member

I just got this error and am stumped. All my other wifi devices work and nest has not had any issues since we got it. 😞

 

i have Multiple Sclerosis so a rise in temperature (in Charleston, SC) has me falling.