topic Re: Help. E73 error code. The nest said no power to the wifi in Nest Thermostats

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

rgaila — Mon, 30 Aug 2021 16:37:36 GMT

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Original Poster: Cindy Bumbales

How do I turn it on to get power?

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

rgaila — Mon, 30 Aug 2021 16:37:56 GMT

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.

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

Kandis — Tue, 31 Aug 2021 20:21:14 GMT

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.